Vortex simulation of laminar recirculating flow
type: Item
instance of: scholarly article
title: Vortex simulation of laminar recirculating flow
zbMATH Open document ID: 0607.76020
DOI: 10.1016/0021-9991(87)90062-3
author: Ahmed F. Ghoniem
author: Yves Cagnon
published in: Journal of Computational Physics
publication date: 1987-01-01T00:00:00Z
review text: The accuracy of the random vortex method, a numerical scheme that combines the representation of the vorticity field by a number of Lagrangian vortex elements of finite cores with a stochastic simulation of diffusion using random walk, is investigated. The converged solutions for a 2-dimensional entry flow in a channel and a recirculating flow behind a rearward-facing step, both in the laminar range of Reynolds numbers, are compared with analytical results and experimental data, respectively. It is shown that the computed results converge as the strength of computational vortex elements is decreased, and that the method is accurate to within the experimental errors. The convergence properties are used to devise a scheme for optimizing the choice of the numerical parameters.
Mathematics Subject Classification ID: 76B47
Mathematics Subject Classification ID: 35Q30
Mathematics Subject Classification ID: 76M99
zbMATH DE Number: 3982744
zbMATH Keywords: accuracy
zbMATH Keywords: random vortex method
zbMATH Keywords: vorticity field
zbMATH Keywords: Lagrangian vortex elements
zbMATH Keywords: finite cores
zbMATH Keywords: stochastic simulation of diffusion
zbMATH Keywords: random walk
zbMATH Keywords: converged solutions
zbMATH Keywords: 2-dimensional entry flow
zbMATH Keywords: channel
zbMATH Keywords: recirculating flow
zbMATH Keywords: rearward-facing step
zbMATH Keywords: convergence properties
MaRDI profile type: Publication
full work available at URL: 0021-9991(87)90062-3
OpenAlex ID: W2072383272
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description: scientific article; zbMATH DE number 3982744