Spatial direct numerical simulation of high-speed boundary-layer flows. II: Transition on a cone in Mach 8 flow
type: Item
instance of: scholarly article
title: Spatial direct numerical simulation of high-speed boundary-layer flows. II: Transition on a cone in Mach 8 flow
zbMATH Open document ID: 0855.76055
DOI: 10.1007/BF00312416
author: C. David Pruett
author: Chau-Lyan Chang
published in: Theoretical and Computational Fluid Dynamics
publication date: 1996-06-04T00:00:00Z
review text: [For part I, see the authors, \textit{T. A. Zang} and \textit{M. H. Carpenter}, ibid. 7, No. 1, 49-76 (1995; Zbl 0824.76055).] The laminar breakdown of the boundary-layer flow of an axisymmetric sharp cone in a Mach 8 flow is simulated by a synergistic approach that combines the parabolized stability equation method and spatial direct numerical simulation. The transitional state is triggered by a symmetric pair of oblique second-mode disturbances whose nonlinear interactions generate strong streamwise vorticity, which leads in turn to severe spanwise variations in the flow and eventual laminar breakdown.
Mathematics Subject Classification ID: 76M25
Mathematics Subject Classification ID: 76E05
Mathematics Subject Classification ID: 76N20
zbMATH DE Number: 865921
zbMATH Keywords: second-mode instability waves
zbMATH Keywords: laminar breakdown
zbMATH Keywords: parabolized stability equation
zbMATH Keywords: oblique second-mode disturbances
zbMATH Keywords: nonlinear interactions
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 865921