| The Shock and Vibration Digest. Volume 8, Number 2, February 1976. |
FEB 1976 |
105 pages |
| Authors:
NAVAL RESEARCH LAB WASHINGTON D C SHOCK AND VIBRATION INFORMATION CENTER
|
 | Contents: Director notes; Feature article--Use of Galerkin's method for vibration; Short courses; Document information; Abstracts from the current literature 76-160 through 76-332; Author index; Editors rattle space; Literature review; Book review. |
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| AGARD Bulletin. Meetings, Publications, Membership. |
JAN 1976 |
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| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
 | This AGARD Bulletin contains information on all the planned 1976 AGARD meetings including dates, locations and brief descriptions of their themes. Included in this bulletin is also a list of all AGARD Publications which were released in 1975, together with their abstracts. Complete listings of all AGARD Publications which appeared since the founding of this agency are included in the 'AGARD Index of Publications 1952-1970' and the 'AGARD Index of ... |
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| The Shock and Vibration Digest. Volume 8, Number 1, January 1976. |
JAN 1976 |
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| Authors:
NAVAL RESEARCH LAB WASHINGTON D C SHOCK AND VIBRATION INFORMATION CENTER
|
| Contents: Director notes; SVIC annual service package; News briefs; Feature article--Progress in shock and vibration standards during 1975; Short courses; Reviews of meetings; Document information; Abstracts from the current literature 76-1 through 76-159; Abstract categories; Author index; Periodicals scanned; Literature review; Optimization techniques for shock and vibration isolator development; Bolotin's dynamic edge effect method; Book review. |
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| Measurements of Boundary Layer Transition on a Shock Tube Wall for Wall Cooling Ratios between 0.39 and 0.255. |
DEC 1975 |
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| Authors:
Robert A. Golobic; FRANK J SEILER RESEARCH LAB UNITED STATES AIR FORCE ACADEMY COLO
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| Measurements of boundary layer transition on a shock tube wall have been made in the Frank J. Seiler Research Laboratory's 17 inch diameter shock tube for wall cooling ratios between 0.39 and 0.255. The data indicate that a reversal region does not exist in this wall cooling range. The majority of the measurements was made for a unit Reynolds number of 50 thousand per ft. Test times were measured but ... |
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| Cannon Muzzle Blast Noise Suppression Facility. |
JUL 1975 |
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| Authors:
H. J. Sneck; WATERVLIET ARSENAL N Y
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| This report describes the theoretical and analytical investigation of a stationary noise suppressor for cannons. (1) A water table model was used to establish the basic suppressor configuration. Shock wave and lumped parameter mathematical models were used to analyze suppressor performance. A model 20mm suppressor was constructed, tested, and found to compare favorably with test results. A full scale suppressor (for 155mm gun) was designed on the basis of analysis ... |
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| Technical Program - 1976. |
JUN 1975 |
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| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
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| This report reflects the program that was approved by the AGARD National Delegates Board. Section I includes a chronological listing of the meetings tentatively scheduled to take place during 1976 and Section II gives a detailed description of the individual Panel Programs, the Consultant and Exchange Program, and the Military Committee Studies Program. The total budget required to support the Proposed 1975 AGARD Technical Program is presented in Section III. ... |
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| Bernoulli Enthalpy: A Fundamental Concept in the Theory of Sound, |
MAR 1975 |
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| Authors:
John E. Yates; Guido Sandri; AERONAUTICAL RESEARCH ASSOCIATES OF PRINCETON INC N J
|
| A general theory of aerodynamic sound is developed. The basic equations of fluid mechanics are expressed in terms of velocity, enthalpy and entropy, and the velocity field is separated into irrotational and rotational parts with the latter being incompressible. A fundamental new concept, Bernoulli enthalpy, H, is introduced, again by analogy with homentropic-irrotational flow. It is shown that the source of the radiative sound field is the substantive rate of ... |
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| Turbulence Research. |
28 FEB 1975 |
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| Authors:
Leslie S. G. Kovasznay; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF MECHANICS AND MATERIALS SCIENCE
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| Turbulent flows were studied especially those aspects that are dominated by the intrinsic nonlinearity of the governing equations. Theories were developed first for the calculation on quasi-parallel shear flows later for coherent turbulent puffs. Measurement techniques were developed for conditional sampling and averaging as well as for detection of large scale coherent motion. By using these above techniques the structure of shear flows was clarified. In order to study coherent ... |
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| Design, Development and Fabrication of a FOA Energy Separator for Use in Aircraft on-Board Oxygen Generating Systems. |
28 FEB 1975 |
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| Authors:
COLUMBIA RESEARCH CORP GAITHERSBURG MD
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| Contained herein is the development of a FOA Energy Separator (FES), a Cryptosteady device which separates an air flow into hot and cold fractions. The device is thermodynamically similar to the principle of a back-to-back expander-compressor, which in actuality does not exist. Therefore, the FES stands alone as a device to provide cooling without the need for heat exchange with the surroundings. This report describes its development specifically for application ... |
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| AGARD Bulletin. Meetings, Publications, Membership. |
JAN 1975 |
|
| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| This AGARD Bulletin contains information on all the planned 1975 AGARD meetings including dates, locations and brief descriptions of their themes. Additional specific information will be provided by means of individual Meeting Announcements which will be distributed by the various Panels. Queries about participation at AGARD meetings can be addressed to the appropriate Panel Members or National Delegates whose names and addresses are listed in Section 3 of this Bulletin. ... |
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| A Fluid Mechanical Light Guide. |
1975 |
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| Authors:
Walter H. Christiansen; Adam P. Bruckner; WASHINGTON UNIV SEATTLE AEROSPACE RESEARCH LAB
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| It is shown that a beam of light can be deflected continuously through large angles along a curved path using the gas flow from a convergent-divergent nozzle sector whose throat lies on the arc of a circle. The amount of deflection depends on the included angle of the nozzle sector and on the density gradients created by the expanding gas flow. For a 360 deg included angle the beam can ... |
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| Calculation of a Composite and Supersonic Flow in a Curvilinear Conduit, |
20 NOV 1974 |
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| Authors:
V. B. Panfilovich; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| AGARD Index of Publications 1971-1973 |
NOV 1974 |
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| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE)
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| The index lists AGARD publications published during the period 1971- 1973. There are five indexes - Subject, based on NASA Thesaurus nomenclature; Personal Author; Corporate Source; Report Number; and Accession Number. Sample entries will be found on the first page of each index. The 34 NASA categories have been used for abstract location. |
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| Unsteady Flows in Jet Engines, |
NOV 1974 |
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| Authors:
F. O. Carta; PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
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| The report records papers and discussions presented at a symposium relative to the fluid mechanics and dynamics of jet engines. |
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| Scaling Laws for Wastewater Treatment Systems Employing Coagulation and Sedimentation. |
JUL 1974 |
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| Authors:
Michael A. Delichatsios; Ronald F. Probstein; MASSACHUSETTS INST OF TECH CAMBRIDGE FLUID MECHANICS LAB
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| In this work the authors develop scaling laws that delineate the regimes in which coagulation, breakup and sedimentation are predominant. Although the details of the interactions between the particles or between the particles and the continuous phase are examined for an idealized isotropic turbulent flow, it is shown how the results which are obtained can be applied to dispersed systems in agitator tanks and in turbulent pipe flows. Based on ... |
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| Coagulation in Turbulent Flow - Theory and Experiment, |
JUL 1974 |
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| Authors:
Michael A. Delichatsios ; Ronald F. Probstein; MASSACHUSETTS INST OF TECH CAMBRIDGE FLUID MECHANICS LAB
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| The coagulation of colloidal particles in turbulent flows is investigated theoretically and experimentally. A coagulation model is developed for destabilized particles in an isotropic turbulent flow. Simple binary collision mean free path concepts are employed and for monodisperse systems coagulation rate relations are derived for particle sizes less than and larger than the Kolmogorov microscale of turbulence. Polydisperse systems are also considered and some general results concerning their behavior are ... |
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| Heating Analysis for the Pioneer Venus Multiprobe Mission |
JUL 74 |
30 pages |
| Authors:
Kenneth Sutton; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER
|
| Results are presented for the fully-coupled, radiating flow field around the entry probes from a detailed calculation which includes equilibrium chemistry, nongray radiative transport, ablation product-injection, and a laminar or turbulent boundary layer. These results show that the radiative flux toward the body is attenuated in the boundary layer at downstream regions of the body as well as at the stagnation point and that, even when radiation absorption by ablation ... |
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| Methods for Predicting the Longitudinal Damping Coefficients for Vertical Acceleration and Pitch. |
FEB 1974 |
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| Authors:
R. W. Conlan; FLORIDA UNIV EGLIN AFB GRADUATE ENGINEERING CENTER
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| Methods for predicting values for vertical acceleration and pitch are presented. The instantaneous formulation is examined by use of the indicial response technique applied to a linear second order differential equation for nondimensional pitching moment as a function of time. Various examples of indicial responses are examined to determine under what conditions vertical acceleration and pitch may be considered time independent. A potential fluid method referred to as the method ... |
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| Features in the Transient Characteristics of Mixed and Unmixed Type Turbofans, |
19 DEC 1973 |
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| Authors:
F. Fett; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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| Mixed and unmixed type turbofans, having identical rotating components and thermodynamic cycles, are compared in terms of transient characteristics and steady-state off-design operation. Effects of step changes in fuel flow rate, nozzle area, inlet pressure, ambient temperature and air bleed are illustrated on both the fan and compressor operating maps. Results show significant differences in the dynamic behavior of the mixed and unmixed turbofan engines without the influence of an ... |
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| Problems of Wind Tunnel Design and Testing. |
DEC 1973 |
|
| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| ;Contents: Some considerations of future low-speed tunnels for Europe; Project study of a large European transonic Ludwieg tube windtunnel; The development of an efficient and economical system for the generation of quiet transonic flows suitable for model testing at high Reynolds number; The injector driven tunnel; Soufflerie a compresseur hydraulique; Facilities for aerodynamic testing at hypersonic speeds. |
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| Static Two Dimensional Performance of a Cushion Fed Air Cushion Landing System. |
DEC 1973 |
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| Authors:
Eduardo M. Carreras; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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| Tests were conducted on a two dimensional model of the trunk region of an air cushion landing system to determine the performance under different flow conditions. The purpose of these tests was to evaluate the effect of the trunk to cushion flow ratio, the cushion to trunk pressure ratio, the flow injection angle and the ratio of the escape area to the nozzle area. Performance was characterized by the ratio ... |
|
| Chemical Laser Analysis Development. Summary Volume. |
OCT 1973 |
|
| Authors:
John W. Benefield; LOCKHEED MISSILES AND SPACE CO INC HUNTSVILLE ALA HUNTSVILLE RESEARCH AND ENGINEERING CENTER
|
| The general objectives of this effort were to improve the analytical tools available for studying chemical lasers and to apply these tools to further the understanding of chemical lasers. Four computer programs are described in the report: (1) One-Dimensional Laser and Mixing Program (ODLAMP); (2) Laser and Mixing Program (LAMP); (3) Two-Dimensional Fresnel Integral Laser and Mixing Program (TDFI-LAMP); and (4) Method-of-Characteristics Laser and Mixing Program (MOC-LAMP). Selected highlights are ... |
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| Propagation of Internal Gravity Waves in a Medium of Weak Random Vertical Shear. |
21 JUN 1973 |
|
| Authors:
Jeffrey M. Forbes; AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
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| The dispersion relation is derived for the ensemble-averaged wave in a Boussinesq fluid with a weak random vertical shear. The basic flow is assumed to be statistically homogeneous in space and time with zero mean. The phase velocity and decay rate are found for the two limiting cases where the wavelength is much greater and much smaller than the correlation length of the basic flow speeds. The decay rate is ... |
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| Waves and Wave Resistance of Thin Bodies Moving at Low Speed: Nonlinear Free-Surface Effects |
MAY 1973 |
59 pages |
| Authors:
Gedeon Dagan; HYDRONAUTICS INC LAUREL MD
|
| Criteria of uniformity of the linearized theory of free-surface gravity flow past submerged or floating bodies based on the thin body perturbation expansion, combining the slenderness parameter, and F, the Froude number, are derived for both two- and three-dimensional flows. These criteria depend on the shape of the leading and trailing edges; as the shape becomes finer the linearized solution becomes valid for smaller F. Uniform first order approximations are ... |
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| Technical Program, 1974, |
MAY 1973 |
|
| Authors:
Michael I. Yarymovych; ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| On 16 March 1973, the AGARD National Delegates Board convened in Paris under the chairmanship of Dr. Theodor Benecke to review and approve the proposed AGARD Technical Program and Budget for 1974. The report reflects the program that was unanimously approved by the AGARD National Delegates Board. Section I includes a chronological listing of the meetings tentatively scheduled to take place during 1974 and Section II portrays a detailed description ... |
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| Calculation of Pressure, Shear and Flow in Lubricating Films for High Speed Bearing, |
MAR 1973 |
|
| Authors:
C. H. T. Pan; MECHANICAL TECHNOLOGY INC LATHAM NY
|
| Although superlaminar momentum transport tends to supress the relative importance of inertia effects for moderately high-speed lubrication flows, the ultimate prevalence of inertia effects at very high speeds is at least a theoretical possibility. Thus, in high-speed lubrication technology, the importance of inertia effects is preceded by that of superlaminar phenomena. The relation between them is not merely hierarchical. Because inertia effects alter the shear stress distribution in the lubricant ... |
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| The Shock and Vibration Digest, Volume 5, Number 3, March 1973. |
MAR 1973 |
|
| Authors:
SHOCK AND VIBRATION INFORMATION CENTER (DEFENSE) WASHINGTON D C
|
| Contents: Analysis and design; (Optimization techniques, Stability analysis, Statistical methods, Variational methods, Finite element modeling); Computer programs, (Natural frequency, Steady state response, Transient response); Environments; Phenomenology, (Composite, Damping, Elastic, Fluid, Soil, Thermoelastic, Viscoelastic); Experimentation; Components; Systems, (Acoustic isolation, Aircraft, Bioengineering, Building, Earth, Helicoptors, Human, Isolation, Metal working and forming, Pumps, Turbines, Fans, Compressors, Rail, Reactors, Reciprocating machine, Road, Rotors, Self-excited, Ship, Spacecraft, Structural, Turbomachinery, Useful application). |
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| Jet Pumps and Ejectors - Application of Liquid/Two Phase Ejection in Desalination. |
28 FEB 1973 |
|
| Authors:
David F. Dyer; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
|
| The report discusses the papers presented at a symposium entitled 'Jet Pumps and Ejectors.3 Particular emphasis is given to a paper dealing with a jet pump using liquid water as a primary jet and steam-water mixture as a secondary jet. The application of such a device to desalination is described and analyzed. (Author) |
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| Submersible Maneuvering. |
01 FEB 1973 |
|
| Authors:
C. K. Taft; NEW HAMPSHIRE UNIV DURHAM
|
| The report presents experimental data obtained from tests performed on various configurations of a shrouded propeller used for submersible propulsion. |
|
| Prediction of Turbulent Boundary Layers and Wakes in Compressible Flow by a Lag-Entrainment Method, |
JAN 1973 |
|
| Authors:
J. E. Green; D. J. Weeks; J. W. F. Brooman; AERONAUTICAL RESEARCH COUNCIL LONDON (ENGLAND)
|
| A rapid method is presented for predicting the development of turbulent boundary layers and wakes taking account of the influence of the upstream flow history on the turbulent stresses. The method employs the momentum integral equation, the entrainment equation and an equation for the streamwise rate of change of entrainment coefficient. This last, developed from the equation for shear stress which Bradshaw, Ferriss and Atwell derived from the turbulent kinetic ... |
|
| Physics in Perspective. Volume II. Part C. Statistical Data: Auxiliary Material Collected by the Staff and Some Members of the Data Panel. |
1973 |
|
| Authors:
NATIONAL ACADEMY OF SCIENCES WASHINGTON D C PHYSICS SURVEY COMMITTEE
|
| ;Contents: Manpower data; Data on funding and costs; Data on the literature of physics; Index of data; Selected tables from the physics portion of the national register of scientific and technical personnel; Allocation of national register specialties to physics subfields. |
|
| Laser Raman Gas Diagnostics, |
1973 |
|
| Authors:
Marshall Lapp; C. M. Penney; PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
|
| Examining the use of Raman scattering as a gaseous systems probe, this volume emphasizes the application of laser Raman gas diagnostics to fluid mechanics and combustion measurements. Topics ranging from the basic physics and chemistry involved in scattering measurements to present and potential applications in flame systems, industrial process control, and the atmosphere are discussed. This book investigates important fluid mechanics problems for which Raman scattering can contribute new information ... |
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| European Scientific Notes. Volume 26, Number 12, |
29 DEC 1972 |
|
| Authors:
John M. Leonard; Victoria Hewitson; OFFICE OF NAVAL RESEARCH LONDON (ENGLAND)
|
|
| Study of High-Altitude Aircraft Wake Dynamics. Task I. Problem Definition. |
DEC 1972 |
208 pages |
| Authors:
H. Hoshizaki; R. J. Conti; L. B. Anderson; K. O. Redler; J. W. Meyer; LOCKHEED MISSILES AND SPACE CO PALO ALTO CALIF PALO ALTO RESEARCH LAB
|
| The purpose of the High-Altitude Aircraft Wake Dynamics Study has been to investigate the chemically reacting wake of an aircraft flying at subsonic and supersonic velocity in the upper troposphere and stratosphere. This is of interest because of the effects these exhaust gases could have upon the chemical balance in the stratosphere. In the study, the chemical and fluid mechanical behaviors of important emission species were traced from the time ... |
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| Generalized Performance Limits for Propellers, Windmills and Lifting Rotors with Axes Parallel to the Undisturbed Flow. |
DEC 1972 |
|
| Authors:
Theodore H. Gawain; NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
|
| The report generalizes the classical momentum theory as usually applied to propellers, windmills and lifting rotors into a single unified treatment. It also extends the analysis to include the regime in which flow through part or all of the actuator disc is reversed with respect to the remote flow field. Dimensional analysis is used in a systematic manner to reduce the final results to their simplest and most significant forms. ... |
|
| Proceedings of Air Force Systems Command 1972 Science and Engineering Symposium Held at the Hilton Palacio del Rio Hotel and Brooks Air Force Base, San Antonio, Texas on 17-18-19 October 1972. Volume I. |
19 OCT 1972 |
|
| Authors:
AIR FORCE SYSTEMS COMMAND WASHINGTON D C
|
| The report is a collection of the unclassified papers presented at the 1972 AFSC Science and Engineering Symposium in San Antonio, Texas. The papers cover a wide variety of technical subjects representing outstanding achievements by AFSC scientists and engineers. (Author) |
|
| AGARD Index of Publications (1952-1970). Part 2. Subject Index. |
OCT 1972 |
|
| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| ;Contents: Bibliographies; Agard general assemblies; Glossaries and dictionaries; Handbooks; Information bulletins; Lecture series; Manuals; Publications index; Research memoranda and specifications; and Travelling seminar papers. Part 2 contains a subject index on the above topics. |
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| AGARD Annual Meeting (1972) Commemorating AGARD's Twentieth Anniversary, Brussels. |
28 SEP 1972 |
|
| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| Approximately ten papers are included, along with opening remarks and addresses presented at the meeting. |
|
| Hydrodynamics of the Human Circulatory System: A Review. |
SEP 1972 |
|
| Authors:
Thomas Blake Humphreys; NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
|
| The results of a literature survey of blood flow are used to determine the extent to which the principles of hydrodynamics are being employed in the study of the human circulatory system. Blood flow is characterized by such parameters are Reynold's number, vessel diameter and geometry, and transport mechanism with a view toward understanding the rheological behavior of blood in various flow regimes. This study provides an engineering explanation of ... |
|
| AGARD Index of Publications (1952-1970). Part I. Abstract Section, |
JUN 1972 |
474 pages |
| Authors:
Alec Jones; ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| ;Contents: Bibliographies; Agard general assemblies; Glossaries and dictionaries; Handbooks; Information bulletins; Lecture series; Manuals; miscellaneous publications; and publications index. |
|
| AGARD Bulletin. Technical Program, 1973. |
MAY 1972 |
|
| Authors:
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
|
| ;Contents: Aerospace Medical, Avionics, Electromagnetic Wave Propagation, Flight Mechanics, Fluid Dynamics, Guidance and Control, Propulsion and Energetics, and Structures and Materials. |
|
| Transient Response of a Point-Excited Submerged Spherical Shell, |
MAY 1972 |
|
| Authors:
Y. K. Lou; J. M. Klosner; POLYTECHNIC INST OF BROOKLYN N Y DEPT OF AEROSPACE ENGINEERING AND APPLIED MECHANICS
|
| The transient responses of a submerged spherical shell to a concentrated impulse and Heaviside load are obtained by using the classical mode method and the Laplace transform. For long time solutions, only a relatively small number of modes are sufficient, while for the short time response, a large number of modes must be used in order to achieve acceptable accuracy. For the lower modes, the inversion integral involves only simple ... |
|
| OH/OD CW Chemical Laser Studies and New Supersonic Flow Laser Geometries. Part 2. The Radial Flow Chemical Laser. |
21 APR 1972 |
|
| Authors:
T. J. Falk; CALSPAN CORP BUFFALO N Y
|
| The fluid mechanical aspects of radial supersonic flow lasers are discussed and various design constraints applying to these lasers are analyzed. Estimates are presented which indicate the circumstances under which radial supersonic nozzle and laser optical cavity flow fields are expected to differ significantly from corresponding linear flow fields. Supersonic nozzle shapes are expected to be influenced by radial flow when the radius at the nozzle exit is less than ... |
|
| Quarterly Bulletin of the Division of Mechanical Engineering and the National Aeronautical Establishment. |
31 MAR 1972 |
|
| Authors:
NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF MECHANICAL ENGINEERING
|
| ;Contents: Aerodynamic and structural noise research at NAE; The dynamics of contained oil slicks; Current projects of the Divsion of Mechanical Engineering and the National Aeronautical Establishment. |
|
| Ejector Section of a Transonic Wind Tunnel, |
20 MAR 1972 |
|
| Authors:
V. T. Kharitonov; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
|
| The report describes an ejector section of a transonic aerodynamic tunnel in whose mixing chamber rigid partitions with sharp front edge (or thinwalled cylinders in case of a cylindrical working part) are mounted parallel to the tunnel working part axis. They form several consecutive flow channels and mixing stages of the high pressure and low pressure gas. The partitions are connected with the mixing chamber walls by uprights of low ... |
|
| The Fluid Mechanics of Pulsatile Flow in the Microcirculation, |
MAR 1972 |
|
| Authors:
Joseph F. Gross; Jerome Aroesty; RAND CORP SANTA MONICA CALIF
|
| Theoretical studies of flow and mass transfer in the microcirculation and the extensive literature in blood rheology have not treated the pulsatility of microvascular blood flow and its interplay with rheology in the microvessels. It is the purpose of this paper to discuss some basic aspects of pulsatile fluid mechanics in the microcirculation, interaction with a non-Newtonian model for blood flow, and a preliminary network model for a composite microcirculatory ... |
|
| A Fluid-Mechanical Formulation of the Problem of Thermomechanical Instability in Energetic Media. |
MAR 1972 |
|
| Authors:
Frank Crowne; Paul Harris; PICATINNY ARSENAL DOVER N J
|
| Thermomechanical instabilities in reactive media are examined first from a thermodynamic viewpoint, where certain ranges of temperature, pressure or density are considered 'unstable' which can be arrived at from the second law of thermodynamics and assumptions about the way heat is released into the fluid. It is then shown that this criterion for instability can be derived from the hydrodynamic equations, and that a substance which satisfies the criterion will ... |
|
| Proceedings of the THEMIS Symposium on Vehicular Dynamics. Held at Rock Island Arsenal, Rock Island, Illinois on 11-12 November 1971, |
14 FEB 1972 |
|
| Authors:
W. F. Ames; A. Hammer; IOWA UNIV IOWA CITY DEPT OF MECHANICS AND HYDRAULICS
|
| The rational design of complex vehicular systems involves a substantial number of simultaneous interrelated decisions and a combination of sophisticated engineering and analytical disciplines. The symposium served as one forum for the presentation and discussion of ongoing research on the dynamics of various mechanisms. Lectures were presented on such topics as flutter phenomena of rotary wings, optimization of structures, air flow over oscillating airfoils, the behavior of layered composites, and ... |
|
| Vibrating Capillary Device for Porduction of Uniform-Sized Droplets. |
FEB 1972 |
|
| Authors:
William A. Cooper; EDGEWOOD ARSENAL MD
|
| A vibrating capillary device for producing uniform-sized liquid droplets at a constnat and known rate has been constructed and experimentally tested. The droplet generation technique applies the principle that a cylinder of liquid is dynamically unstable under the action of surface tension. When a regular mechanical disturbance within a specified wavelength range is applied to a liquid jet, the jet will disintegrate into a stream of uniform-sized droplets. The size ... |
|
| Fuel Slosh Energy Dissipation on a Spinning Body |
FEB 1972 |
150 pages |
| Authors:
J. T. Neer; Jeremiah O. Salvatore; HUGHES AIRCRAFT CO EL SEGUNDO CA SPACEAND COMMUNICATIONS GROUP
|
| The purpose of the report is to serve as an interim documentation of the fuel slosh investigation program to date. Additional testing at inertia ratios near 0.6 and 1.1 is presently scheduled for early 1972. This testing together with the testing already completed, is intended to establish an empirical energy dissipation equation that will permit scaling test and flight data for arbitrary roll-to-pitch ratios. Such scaling is critical for determining ... |
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Reports by Keyword(s)
FLUID MECHANICS
