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Forum: Main CFD Forum

July 6, 2013, 08:05

Replies: 9

Incompressible Flow: Retrieving Pressure from Velocity Field

Views: 3,188

Posted By lordvon

Is there anything wrong with what I would think...

Is there anything wrong with what I would think is the most general approach starting from the incompressible Navier-Stokes, manipulating it to the Poisson pressure form, and discretizing this?

Forum: Main CFD Forum

July 6, 2013, 07:03

Replies: 9

Incompressible Flow: Retrieving Pressure from Velocity Field

Views: 3,188

Posted By lordvon

1) Yes as mentioned in my first post I am...

1) Yes as mentioned in my first post I am comparing with OpenFOAM (icoFoam).
2) I do realize that the problem is solvable up to an arbitrary constant.
3) As mentioned in the first post I use the...

Forum: Main CFD Forum

July 6, 2013, 06:39

Replies: 9

Incompressible Flow: Retrieving Pressure from Velocity Field

Views: 3,188

Posted By lordvon

I obtain the velocity field by the "exact...

I obtain the velocity field by the "exact fractional step method" (http://www.ecs.umass.edu/mie/tcfd/Papers/perot_cfd2007.pdf). Then, I try to obtain the pressure as a post-processing step.

I am...

Forum: Main CFD Forum

July 5, 2013, 18:57

Replies: 9

Incompressible Flow: Retrieving Pressure from Velocity Field

Views: 3,188

Posted By lordvon

Incompressible Flow: Retrieving Pressure from Velocity Field

Hello all,
I have been trying to retrieve the pressure field from a divergence-free velocity field in 2D incompressible flow. I am using the following formula for the pressure Poisson equation:...

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