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Three-dimensional recirculation flow in a backward facing step

Journal Article · · Journal of Fluids Engineering; (United States)
DOI:https://doi.org/10.1115/1.2910259· OSTI ID:7266946
 [1];  [2]
  1. Florida A M Univ., Tallahassee, FL (United States) Florida State Univ., Tallahassee, FL (United States)
  2. Univ. of California, Los Angeles, CA (United States). Mechanical, Aerospace and Nuclear Engineering Dept.
The flow field behind a small aspect ratio (channel width/step height = 3) backward-facing step is examined using laser Doppler anemometer. All three velocity components inside the separation region are surveyed in detail. The velocity profile just upstream of the step is laminar and two-dimensional. The velocity field reveals that the reattachment and the flow in the recirculation zone are highly three-dimensional due to the small aspect ratio.
OSTI ID:
7266946
Journal Information:
Journal of Fluids Engineering; (United States), Journal Name: Journal of Fluids Engineering; (United States) Vol. 116:2; ISSN 0098-2202; ISSN JFEGA4
Country of Publication:
United States
Language:
English

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