Size of annular separation bubble around the inlet corner and viscous flow structure between two parallel disks

Size of annular separation bubble around the inlet corner and viscous flow structure between two... The annular separation bubble around the inlet corner and the radial flow between two parallel disks were investigated by means of flow visualization and numerical simulations to gain an understanding of the features of axisymmetric separation and reattachment in the inlet region. For the case with a sharp corner, the radius of the reattachment point depends only on clearance ratio, independent of Reynolds number in the turbulent flow regime where the reattachment point fluctuates randomly. For the cases with a rounded corner, the radius of reattachment point and the height of the bubble decrease with increasing corner roundness. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Size of annular separation bubble around the inlet corner and viscous flow structure between two parallel disks

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Publisher
Springer-Verlag
Copyright
Copyright © 2002 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-001-0370-y
Publisher site
See Article on Publisher Site

Abstract

The annular separation bubble around the inlet corner and the radial flow between two parallel disks were investigated by means of flow visualization and numerical simulations to gain an understanding of the features of axisymmetric separation and reattachment in the inlet region. For the case with a sharp corner, the radius of the reattachment point depends only on clearance ratio, independent of Reynolds number in the turbulent flow regime where the reattachment point fluctuates randomly. For the cases with a rounded corner, the radius of reattachment point and the height of the bubble decrease with increasing corner roundness.

Journal

Experiments in FluidsSpringer Journals

Published: Apr 1, 2002

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