VelocityGradient as a function of temperature -- CFD Online Discussion Forums

October 31, 2019, 09:02

VelocityGradient as a function of temperature

Nikhil2511

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Nikhil Chitnavis

Join Date: Sep 2019

Location: India

Posts: 19

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mu*du/dy = A* dT/dy + B*dC/dy ;

A and B are constants.
v = 0

Is it possible to define above equation as boundary condition using Groovy BC or using library for it ?
please help how to write this Boundary Condition.
I am attaching the library which I used but the result are not good. It is a 2D cavity with temperature and concentration given to the side walls and the surafce tension is linearly varying with the temperature. The solver is for the OpenFoam 5.0.
Is it necessary to initialize the test case using setFields for the concentration?

thanks.

Attached Files

	marangoniTCdep-master.tar.gz (92.4 KB, 1 views)
	mySimpleMarangoniTempConcenFoam.tar.gz (2.9 KB, 2 views)

raj kumar saini likes this.

Last edited by Nikhil2511; November 1, 2019 at 08:04.

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