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

Forum: Main CFD Forum September 3, 2012, 09:58

Replies: 13 How to determine face velocity for upwind scheme? Views: 2,267 Posted By FMDenaro I do not suggest to replicate the computation for... I do not suggest to replicate the computation for sections e and w in each volume... work first sweeping faces and store the flux values, the use the unicity of the flux on each face

Forum: Main CFD Forum September 1, 2012, 11:00

Replies: 13 How to determine face velocity for upwind scheme? Views: 2,267 Posted By FMDenaro I have to consider that the sign of the flux is... I have to consider that the sign of the flux is provided by the dot product between the normal unit to the surface and the velocity vector...Therefore, in the 1D case at section e: flux_e = (n.v *...

Forum: Main CFD Forum August 28, 2012, 16:14

Replies: 13 How to determine face velocity for upwind scheme? Views: 2,267 Posted By FMDenaro Yes, I suggest to compute first the fluxes on all... Yes, I suggest to compute first the fluxes on all the faces, then you can update the solution at time n+1 while exploting the sum of the fluxes

Forum: Main CFD Forum August 28, 2012, 14:44

Replies: 13 How to determine face velocity for upwind scheme? Views: 2,267 Posted By FMDenaro The concept of upwind involves the transported... The concept of upwind involves the transported variable, thus phi must be up-winded, you cannot interpolate with a down-wind value! The scheme can be generalized to higher order, for example you...

Forum: Main CFD Forum August 28, 2012, 14:02

Replies: 13 How to determine face velocity for upwind scheme? Views: 2,267 Posted By FMDenaro are you talking of first-order upwind? Then for... are you talking of first-order upwind? Then for the face "e", between nodes E and P, you will get: u_e = 0.5*(u_P + u_E) u_minus = 0.5*(u_e-abs(u_e)) u_plus = 0.5*(u_e+abs(u_e)) flux_e=...

Showing results 1 to 5 of 5

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