An efficient surface algorithm for random-particle simulation of vorticity and heat transport
type: Item
instance of: scholarly article
title: An efficient surface algorithm for random-particle simulation of vorticity and heat transport
zbMATH Open document ID: 0662.76040
DOI: 10.1016/0021-9991(89)90212-X
author: S. H. Smith
published in: Journal of Computational Physics
publication date: 1989-01-01T00:00:00Z
review text: A new surface algorithm has been incorporated into the random-vortex method for the simulation of 2-dimensional laminar flow, in which vortex particles are deleted rather than reflected as they cross a solid surface. This involves a modification to the strength and random walk of newly created vortex particles. Computations of the early stages of symmetric, impulsively started flow around a circular cylinder for a wide range of Reynolds numbers demonstrate that the number of vortices required for convergence is substantially reduced. The method has been further extended to accommodate forced convective heat transfer where temperature particles are created at a surface to satisfy the condition of constant surface temperature. Vortex and temperature particles are handled together throughout each time step. For long runs, in which a steady state is reached, comparison is made with some time-averaged experimental heat transfer data for Reynolds numbers up to a few hundred. A Kármán vortex street occurs at the higher Reynolds numbers.
Mathematics Subject Classification ID: 76D05
Mathematics Subject Classification ID: 80A20
Mathematics Subject Classification ID: 76M99
Mathematics Subject Classification ID: 65Z05
zbMATH DE Number: 4083193
zbMATH Keywords: surface algorithm
zbMATH Keywords: random-vortex method
zbMATH Keywords: laminar flow
zbMATH Keywords: vortex particles
MaRDI profile type: Publication
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full work available at URL: 0021-9991(89)90212-x
OpenAlex ID: W2068856656
description: scientific article; zbMATH DE number 4083193