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IDProjectCategoryView StatusLast Update
0000477OpenFOAMBugpublic2012-04-13 17:44
Reporteruser398Assigned Touser21 
PrioritynormalSeveritymajorReproducibilityalways
Status closedResolutionfixed 
PlatformLinuxOSUbuntuOS Version10.04
Summary0000477: porousInterFoam : No change in front position when modifying the porosity
Description
I'm using the porousInterFoam solver. And I try to deal with a 1D front propagation.
There is an analytical solution for predicting the front position and it depends on porosity. When I modify the porosity, I don't observe any change in the front velocity.
That must be a bug.

Analytical solution :
x(t) = sqrt(P*K*t/(mu*phi))
where : x is the front position [m], t the time [s], P the inlet pressure [Pa], K the permeability [m2], mu the dynamic viscosity [Pa.s] and phi the porosity [no dim.].

 

Steps To Reproduceunzip the provided file
Run blockMesh
Run porousInterFoam
Monitor the front position in time
Change porosity in the porousZone (in the constant folder)
Run porousInterFoam
Monitor the front position in time

That's the same position and that shouldn't be the same.
TagsNo tags attached.

Activities

user398

2012-03-21 20:27

 

porosityTest.tar.gz (3,211 bytes)

user21

2012-04-13 17:44

  ~0001240

The "porosity" entry is for the treatment of temporal terms in the porous zone equations. Although, currently is not supported.
To change the pressure drop across the porous media you need to modify d and f accordingly.
Thanks

Issue History

Date Modified Username Field Change
2012-03-21 20:27 user398 New Issue
2012-03-21 20:27 user398 File Added: porosityTest.tar.gz
2012-04-13 17:44 user21 Note Added: 0001240
2012-04-13 17:44 user21 Status new => closed
2012-04-13 17:44 user21 Assigned To => user21
2012-04-13 17:44 user21 Resolution open => fixed