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Search took 0.00 seconds. Search: Posts Made By: nimasam
Forum: OpenFOAM May 25, 2012, 05:18
Replies: 21
Views: 6,462
Posted By nimasam
you are right! why? in each iteration,...

you are right!


why?
in each iteration, update rho total, based on continuity
in end of iteration update rho based on mixture equation ( i guess this help each phase mass conservation)

...
Forum: OpenFOAM May 24, 2012, 14:45
Replies: 21
Views: 6,462
Posted By nimasam
i solved rhoEqn once, when I solve alphaEqn,...

i solved rhoEqn once,
when I solve alphaEqn, rhoPhi is getting update,
then i calculate total rho from rhoPhi from continuity Eqn (look compressibleInterFoam)
Forum: OpenFOAM May 24, 2012, 10:16
Replies: 21
Views: 6,462
Posted By nimasam
hi dear Illya sorry4 late answer, take a quick...

hi dear Illya
sorry4 late answer, take a quick look on your code, it seems look a like, ofcourse i implemented it for PISO loop in OpenFOAM-1.6, however i suggest you play with algorithm
i prefer...
Forum: OpenFOAM May 22, 2012, 01:28
Replies: 21
Views: 6,462
Posted By nimasam
Hi Illya psi is somehow (1/RT), so after...

Hi Illya
psi is somehow (1/RT), so after temperature calculation, i update rho,
then i calculate source term in pEqn from rho not p!, so it became an explicit source term for pressure equation
Forum: OpenFOAM May 16, 2012, 15:06
Replies: 21
Views: 6,462
Posted By nimasam
look at here...

look at here (http://www.cfd-online.com/Forums/openfoam-solving/70965-formulation-compressibleinterfoam-2.html)
Forum: OpenFOAM May 16, 2012, 13:58
Replies: 21
Views: 6,462
Posted By nimasam
i think it was some how poor in continuity...

i think it was some how poor in continuity specially in cumulative continuity was some how high but golbal and local continuity error was around 1e-05
Forum: OpenFOAM May 16, 2012, 13:00
Replies: 21
Views: 6,462
Posted By nimasam
i calculate the source terms like below: ...

i calculate the source terms like below:

vDotP1 = fvc::ddt(rho1) + fvc::div(phi,rho1) - rho1*fvc:: div(phi);
vDotP2 = fvc::ddt(rho2) + fvc::div(phi,rho2)- rho2*fvc::div(phi);

vDotAlpha =...
Forum: OpenFOAM September 27, 2011, 07:04
Replies: 21
Views: 6,462
Posted By nimasam
compressibilty effect in alphaEqn.H

i have two compressible flow , i would like to track interface between them
i can not use compressibleInterFoam , because the flow is self expanding due to pressure and temperature , and reaction...
Showing results 1 to 8 of 8

 
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