Experiments in Fluids

, Volume 42, Issue 2, pp 169–184

Visualizations of the flow inside an open cavity at medium range Reynolds numbers

  • Thierry M. Faure
  • Panayotis Adrianos
  • François Lusseyran
  • Luc Pastur
Research Article

DOI: 10.1007/s00348-006-0188-8

Cite this article as:
Faure, T.M., Adrianos, P., Lusseyran, F. et al. Exp Fluids (2007) 42: 169. doi:10.1007/s00348-006-0188-8

Abstract

The interaction between a laminar boundary layer and an open cavity is investigated experimentally for medium range Reynolds numbers. Flow visualizations are carried out for three different observation directions in order to understand the spatial development of dynamical structures. In particular, synchronized visualizations in two parallel planes picture the transverse development of the flow. The study is conducted by changing the cavity aspect ratio, the Reynolds number and therefore the flow patterns inside the cavity. The issue is to emphasize the 3-D development of the flow. In particular, we show that the dynamical structures are not due to secondary shear layer instabilities.

Nomenclature

A

plate length upstream of the cavity

B

plate length downstream of the cavity

D

wind tunnel height

Görtler number

H

cavity height

k

wave number

L

cavity length

R

aspect ratio

rc

curvature radius

Re

Reynolds number

S

wind tunnel span

t

time

Uc

convection velocity inside the cavity

Ue

external velocity

(x, y, z)

Cartesian coordinates

Δ

difference

δ

boundary layer thickness inside the cavity

δ2

momentum thickness inside the cavity

Λ

dimensionless coefficient

λ

wavelength

ν

kinematics viscosity

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • Thierry M. Faure
    • 1
    • 2
  • Panayotis Adrianos
    • 1
    • 2
  • François Lusseyran
    • 1
  • Luc Pastur
    • 1
    • 3
  1. 1.Laboratoire d’Informatique pour la Mécanique et les Sciences de l’Ingénieur, Unité Propre de Recherche 3251Centre National de la Recherche ScientifiqueOrsay CedexFrance
  2. 2.Université Pierre et Marie CurieParis Cedex 05France
  3. 3.Université Paris-SudOrsay CedexFrance