| An Experimental Study of the Transport of a Non-Diffusive Scalar Contaminant in the Decaying Turbulence Field of an Enclosed Chamber. |
AUG 1978 |
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| Authors:
K. C. Cornelius; J. F. Foss; PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS
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 | An experimental investigation of the convective properties of a turbulence field within a closed mixing chamber has been executed; the investigation is supported by appropriate theoretical analyses. The purpose of the study were (1) to develop an experimental technique which could ascertain the convective, or dispersive, properties of such a turbulence field (i.e., with the constraint of zero molecular diffusivity); and (2) to document the influence of the Reynolds number ... |
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| Four-Part Study on Bounded and Intersecting Jets. |
15 AUG 1970 |
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| Authors:
J. F. Foss; MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH
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| An extensive investigation of bounded and intersecting plane, incompressible, turbulent jets is reported. The objective of both the bounded and intersecting jet studies was to establish rational (fluid mechanics) flow models for both flow fields. Further objectives were (1) to use the intersecting jets model to determine the optimum geometry for a high-gain proportional amplifier, and (2) to predict the aspect ratio dependence of the secondary flow and other three-dimensional ... |
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| The Initiation, Development, and Decay of the Secondary Flow in an Incompressible Turbulent Bounded Jet. |
30 JUN 1970 |
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| Authors:
J. D. Holdeman; J. F. Foss; MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH
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| A comprehensive explanation of the initiation, development, and decay of the secondary flow in an incompressible turbulent bounded jet is presented and supported by experimental data. The planar vortex ring near the nozzle exit is stretched and reoriented resulting in the development of a large scale secondary flow. As the streamwise vorticity is diffused, the secondary motion decays. This explanation is supported by the vorticity and velocity data of this ... |
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| The Defined Region Geometry for High-Gain Proportional Fluid Amplifiers. |
06 JAN 1970 |
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| Authors:
J. F. Foss; S. J. Kleis; MICHIGAN STATE UNIV EAST LANSING DIV OF ENGINEERING RESEARCH
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| Combined flow visualization and quantitiative data for the defined region geometry are presented and interpreted. From these data, a flow model for the interaction region and some observations on the character of the resultant jet are presented. The flow model provides an explanation of the greater than ambient pocket pressure which allows this geometry to be used for a high-gain proportional amplifier. (Author) |
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