hallo, i've some question abou
hallo, i've some question about using pressureTransmissive b.c.
i've alredy read what "pinf" e "linf" mean, but what about "value"? i mean, looking through this forum, someone adds this voice and someone else not..so, what should i do? i think that "value" is the starting value of pressure,right? now i'm solving with sonicTurbfoam, and i'm using this b.c. to the outlet of my cilinder: pinf 89000 linf 10000 value uniform 89000 and in this way things seem to have taken the right way.can someone suggest how tu use proprerly this b.c.? thank you federico |
This is fine - when the b.c. g
This is fine - when the b.c. gets evaluated, it will calculate its own value. In this case, the "value" entry is for post-processing (of the zero directory, which is where I suspect your initial fields are), because the post-processor should not be evaluating the boundary condition for you.
Enjoy, Hrv |
Hello everyone,
Regarding t
Hello everyone,
Regarding the pressureTransmissive b.c., is the value pInf an absolute value, or relative to the reference level? I ask because in my pressure field, I set referenceLevel = 1.01e+5. When I set pInf to zero, simulation will not run, and I get an empty error message: . . . Reading thermophysicalProperties Selecting thermodynamics package hMixtureThermo<reactingmixture> --> FOAM FATAL ERROR : FOAM exiting . . Thanks for your assistance, David |
There is a special check in th
There is a special check in the pressureTransmissive BC (and also waveTransmissive) that throws an error if the far-field value is set to zero, saying that this is an "unphysical pInf_ specified". So you must use the absolute pressure.
DPS |
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