|February 4, 2009, 08:42||
Hi everybody, I am currentl
I am currently trying to use OpenFoam to model the flow of incompressible viscoelastic fluids. Currently, I am doubts on how to implement two terms of the differential constitutive that I am using.
In particular, the equation has a term of the form
(1+A*tr(tensor))*tensor, where A is a constant and tensor represent the stress tensorial field. As the operation gives a tensor, I am considering it a source term when solving the equations to determine the extra stress. Can I do it this way?
Also in the calculation of the extra stress term, there is a term in the form div(U*tensor), the divergent of the velocity and the sress tensor. As the fluid is incompressible, I believe i can right the term in the form U*div(tensor), and represent it in OpenFoam language in the form div(phi,tensor), as it is equivalent to a flux term like U*div(U). Can I do this manipulations?
|Thread||Thread Starter||Forum||Replies||Last Post|
|VOF simulation of a viscoelastic fluid||sinah||OpenFOAM Running, Solving & CFD||10||November 25, 2010 12:02|
|Boundary Condition definition for Tensorial Fields and viscoelastic flow simulation||titio||OpenFOAM Running, Solving & CFD||1||February 4, 2009 10:14|
|Viscoelastic flow modeling in OpenFOAM||vulda||OpenFOAM Running, Solving & CFD||1||March 17, 2008 08:32|
|How to represent two phase flow in Gambit||K.Baker||FLUENT||4||May 22, 2006 08:03|
|Viscoelastic Flow in Fluent||Edward Chan||FLUENT||0||December 7, 2001 10:41|