Studies on Unsteady Pressure Fields in the Region of Separating and Reattaching Flows

[+] Author and Article Information
H. S. Govinda Ram

Department of Civil Engineering, Indian Institute of Science, Bangalore 560 012, India

V. H. Arakeri

Department of Mechanical Engineering, Indian Institute of Science, Bangalore 560 012, India

J. Fluids Eng 112(4), 402-408 (Dec 01, 1990) (7 pages) doi:10.1115/1.2909417 History: Received May 05, 1989; Online May 23, 2008


Experimental studies on the measurement of pressure fields in the region of separating and reattaching flows behind several two-dimensional fore-bodies and one axisymmetric body are reported. In particular, extensive measurements of mean pressure, surface pressure fluctuation, and pressure fluctuation within the flow were made for a series of two-dimensional fore-body shapes consisting of triangular nose with varying included angle. The measurements from different bodies are compared and one of the important findings is that the maximum values of rms pressure fluctuation levels in the shear layer approaching reattachment are almost equal to the maximum value of the surface fluctuation levels.

Copyright © 1990 by The American Society of Mechanical Engineers
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