Numerical Experiments on the Stability of Leading Edge Boundary Layer Flow

Theofilis, Vassilios (1993). Numerical Experiments on the Stability of Leading Edge Boundary Layer Flow. "International Journal for Numerical Methods in Fluids", v. 16 (n. 2); pp. 153-170. ISSN 0271-2091. https://doi.org/10.1002/fld.1650160205.

Description

Title: Numerical Experiments on the Stability of Leading Edge Boundary Layer Flow
Author/s:
  • Theofilis, Vassilios
Item Type: Article
Título de Revista/Publicación: International Journal for Numerical Methods in Fluids
Date: January 1993
ISSN: 0271-2091
Volume: 16
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A numerical study is performed in order to gain insight to the stability of the infinite swept attachment line boundary layer. The basic flow is taken to be of the Hiemenz class with an added cross-flow giving rise to a constant thickness boundary layer along the attachment line. The full Navier-Stokes equations are solved using an initial value problem approach after two-dimensional perturbations of varying amplitude are introduced into the basic flow. A second-order-accurate finite difference scheme is used in the normal-to-the-wall direction, while a pseudospectral approach is employed in the other directions; temporally, an implicit Crank-Nicolson scheme is used. Extensive use of the efficient fast Fourier transform (FFT) algorithm has been made, resulting in substantial savings in computing cost. Results for the two-dimensional linear regime of perturbations are in very good agreement with past numerical and theoretical investigations, without the need for specific assumptions used by the latter, thus establishing the generality of our method.

More information

Item ID: 10436
DC Identifier: http://oa.upm.es/10436/
OAI Identifier: oai:oa.upm.es:10436
DOI: 10.1002/fld.1650160205
Deposited by: Memoria Investigacion
Deposited on: 05 Mar 2012 10:05
Last Modified: 20 Apr 2016 18:39
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