Roughness-induced generation of crossflow vortices in three-dimensional boundary layers
type: Item
instance of: scholarly article
title: Roughness-induced generation of crossflow vortices in three-dimensional boundary layers
zbMATH Open document ID: 0803.76033
DOI: 10.1007/BF00417924
published in: Theoretical and Computational Fluid Dynamics
publication date: 1995-01-02T00:00:00Z
review text: Using the parallel-flow assumption and a nonasymptotic adaption of the asymptotic receptivity theory of Goldstein and Ruban, the roughness- induced generation of stationary crossflow vortices as well as nonstationary instability waves in swept-wing, incompressible boundary layers are investigated. Different types of roughness geometries such as a single isolated roughness element or roughness arrays that are periodic in one or both surface directions are treated. Numerical results are presented in the form of a parameter study for the Falkner-Skan-Cooke family of three-dimensional swept-wing boundary layers. In agreement with experimental findings, the parameter study supports earlier conjectures that the receptivity to roughness-induced stationary vortices is likely to be more important than the nonstationary receptivity in the presence of acoustic free stream disturbances unless the latter are extremely high. The effects of curvature and nonparallelity could alter these findings.
Mathematics Subject Classification ID: 76E05
Mathematics Subject Classification ID: 76D10
zbMATH DE Number: 527631
zbMATH Keywords: Falkner-Skan-Cooke boundary layer
zbMATH Keywords: asymptotic receptivity theory
zbMATH Keywords: isolated roughness element
zbMATH Keywords: roughness arrays
zbMATH Keywords: swept-wing boundary layers
author: Meelan M. Choudhari
reviewed by: Werner Koch
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 527631