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Forum: Main CFD Forum

August 11, 2010, 12:29

Replies: 8

SIMPLE Algorithm - Questions from a Beginner

Views: 4,999

Posted By falopsy

Yes, the initial condition doesnt really matter...

Yes, the initial condition doesnt really matter but what how will you treat it after the first iteration when the pressure will then be non-uniform? You still need a way to treat the boundary...

Forum: Main CFD Forum

August 9, 2010, 15:13

Replies: 8

SIMPLE Algorithm - Questions from a Beginner

Views: 4,999

Posted By falopsy

In staggered grid, the velocity nodes at the...

In staggered grid, the velocity nodes at the boundaries coincides directly with the boundaries. Since these values are known ( no slip or whatever), you don't solve the momentum equations for those...

Forum: Main CFD Forum

August 9, 2010, 13:06

Replies: 8

SIMPLE Algorithm - Questions from a Beginner

Views: 4,999

Posted By falopsy

Yes, the pressures in the momentum equations are...

Yes, the pressures in the momentum equations are the ones from last iteration. Some books (e.g. Computational Fluid Dynamics from basics to application, Anderson) ask you to extrapolate the pressure...

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