Visualization Techniques for Unsteady Flows: An Overview

[+] Author and Article Information
Mohamed Gad-el-Hak

Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, IN 46556

J. Fluids Eng 110(3), 231-243 (Sep 01, 1988) (13 pages) doi:10.1115/1.3243539 History: Received December 29, 1986; Online October 26, 2009


The purpose of this article is to review some of the novel flow visualization techniques that are particularly suited for studying unsteady flows. While many of these techniques are equally conducive for steady flow fields, the present paper will emphasize applications to time-dependent flows. Possible pitfalls in interpreting the visualization results are elaborated. The flow visualization methods presented include those that make use of scattered light from small particles or other foreign additives as well as those that make use of changes in the index of refraction.

Copyright © 1988 by ASME
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