| Naval Undersea Warfare Center Division Newport Technical Digest. Structural Acoustics |
JUN 95 |
115 pages |
| Authors:
Richard H. Nadolink; Ding Lee; James C. Meng; Albert H. Nuttall; Norman L. Owsley; NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV RI
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 | The theme of this issue of the Naval Undersea Warfare Center Division Newport's Technical Digest is structural acoustics and composite structures. Structural acoustics is that field of physics dealing with the propagation of time-wise varying motion in solid bodies and their interaction with acoustic media. The practical application of structural acoustics is in noise control. The problems in this area of engineering science are complex because, unlike acoustic fluids, there ... |
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| Friction Reduction in Dilute Solutions of Polystyrene. Part 1. |
18 MAY 1973 |
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| Authors:
Richard H. Nadolink; NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I
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 | Experiments reported herein were carried out to define and produce a calibrated polymer candidate which exhibited friction reduction with simultaneous specification of its macro-molecular properties. A series of polystyrene polymers were synthesized by a novel polymerization scheme and were extensively characterized by modern and classical techniques. The results of turbulent flow and shear wear experiments on these polystyrenes defined a range of molecular parameters in which excellent dilute solution performance ... |
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| AN INVESTIGATION OF VELOCITY PROFILES IN THE LAMINAR SUBLAYER WITH NON-NEWTONIAN ADDITIVES USING HIGH SPEED PHOTOMICROSCOPY. |
MAY 1969 |
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| Authors:
Charles E. Carver Jr.; Richard H. Nadolink; MASSACHUSETTS UNIV AMHERST ENGINEERING RESEARCH INST
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| The report describes the development of a high speed photomicroscopic technique, using dark-field microscopy, for the measurement of turbulent velocity distributions in a circular pipe. The method is especially adapted to velocity measurements extremely close to a boundary, of the order of five microns. Velocities are obtained from the analysis of 16 mm film exposure with a high speed camera, due to the motion of illuminated polystyrene tracers, 1.305 microns ... |
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| MEASUREMENT OF LAMINAR VELOCITY PROFILES WITH NON-NEWTONIAN ADDITIVES USING PHOTOMICROSCOPY. |
SEP 1965 |
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| Authors:
Charles E. Carver Jr.; Richard H. Nadolink; MASSACHUSETTS UNIV AMHERST FLUID MECHANICS LAB
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| The report describes the development of a photomicroscopic technique, using dark field microscopy, for the direct measurement of velocity distribution in an essentially one-dimensional channel. The method is particularly adapted to velocity measurements in close proximity to a frictional boundary, of the order of five microns. Velocities are obtained from the analysis of light streaks, obtained from photomicrographs, due to the motion of illuminated polystyrene tracers, 0.55 microns in diameter, ... |
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