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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: rmh26

Forum: Main CFD Forum May 23, 2012, 14:20

Replies: 27 Pressure correction in fractional step method Views: 3,539 Posted By rmh26 Program is surprisingly short, I guess all the... Program is surprisingly short, I guess all the built in MATLAB functions help but its also makes it very tough to read/understand. Anyways % pressure correction rhs =...

Forum: Main CFD Forum May 23, 2012, 12:01

Replies: 27 Pressure correction in fractional step method Views: 3,539 Posted By rmh26 Well first off if you are solving a poisson type... Well first off if you are solving a poisson type problem with nueman conditions it is 100% singular not just nearly. Try solving a 1-D poisson problem with nuemann conditions using gaussian...

Forum: Main CFD Forum May 22, 2012, 14:44

Replies: 27 Pressure correction in fractional step method Views: 3,539 Posted By rmh26 Yeah the nuemann condition part is can be tricky.... Yeah the nuemann condition part is can be tricky. I think a lot of people set one of the boundary values to zero instead of using a nuemann condition. You mentioned that you solved this problem in...

Forum: Main CFD Forum May 17, 2012, 10:57

Replies: 27 Pressure correction in fractional step method Views: 3,539 Posted By rmh26 There normal component of the gradient of the... There normal component of the gradient of the pressure should be zero at the axis, if we are assuming axisymmetric flow and the fact that Ur must be zero at the axis. What are you using for the...

Forum: Main CFD Forum May 14, 2012, 10:18

Replies: 27 Pressure correction in fractional step method Views: 3,539 Posted By rmh26 How does the divergence change before and after... How does the divergence change before and after the correction step? Is the divergence localized in certain regions after the correction step? How accurately is your pressure equation being solved?...

Showing results 1 to 5 of 5

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