False diffusion
id:
false-diffusion-312-9740855
title:
False diffusion
text:
False diffusion is a type of error observed when the upwind scheme is used to approximate the convection term in convection–diffusion equations. The more accurate central difference scheme can be used for the convection term, but for grids with cell Peclet number more than 2, the central difference scheme is unstable and the simpler upwind scheme is often used. The resulting error from the upwind differencing scheme has a diffusion-like appearance in two- or three-dimensional co-ordinate systems
brand slug:
wiki
category slug:
encyclopedia
description:
Error in computational fluid dynamics
original url:
https://en.wikipedia.org/wiki/False_diffusion
date created:
date modified:
2023-05-19T05:00:12Z
main entity:
{"identifier":"Q5432694","url":"https://www.wikidata.org/entity/Q5432694"}
image:
fields total:
13
integrity:
14