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Unknown type type heRhoThermo in rhoCentralFoam |
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November 2, 2022, 13:42 |
Unknown type type heRhoThermo in rhoCentralFoam
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#1 |
New Member
Sreehari Perumanath
Join Date: Jun 2022
Posts: 28
Rep Power: 4 |
Dear Foamers,
I'm trying to model water using the rhoCentralFoam solver and I found the thermoPhysicalProperties file for water from Toby's website: https://holzmann-cfd.com/community/b...operties-water that has the following snippet: Code:
thermoType { type heRhoThermo; mixture pureMixture; transport polynomial; thermo hPolynomial; equationOfState icoPolynomial; specie specie; energy sensibleEnthalpy; } Code:
Unknown type type heRhoThermo Supported type types: 1 ( hePsiThermo ) Many thanks in advance. S |
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November 2, 2022, 13:59 |
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#2 |
Senior Member
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The error indicates that rhoCentralFoam only supports hePsiThermo.
Change thermodynamics to hePsiThermo (more versatile at possibly higher computational cost) Or change solver to rhoPimpleFoam (and thus algorithms to solve the case) Or extend rhoCentralFoam to heRhoThermo (possibly of limited use) |
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November 3, 2022, 07:26 |
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#3 | |
New Member
Sreehari Perumanath
Join Date: Jun 2022
Posts: 28
Rep Power: 4 |
Quote:
Many thanks, S |
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November 3, 2022, 08:22 |
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#5 | |
New Member
Sreehari Perumanath
Join Date: Jun 2022
Posts: 28
Rep Power: 4 |
Quote:
S |
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November 3, 2022, 10:26 |
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#7 | |
New Member
Sreehari Perumanath
Join Date: Jun 2022
Posts: 28
Rep Power: 4 |
Quote:
I thought rhoCentralFoam might be the best one as it is density based, and so I can plug in an appropriate EOS for water. Tobi's EOS was a starting point. Do you think I'd be better off trying another solver? It'd be very helpful if you have any suggestions. Thanks, S |
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November 4, 2022, 07:24 |
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#9 | |
New Member
Sreehari Perumanath
Join Date: Jun 2022
Posts: 28
Rep Power: 4 |
Quote:
Fluctuating hydrodynamics simulations are the continuum counterpart of molecular dynamics simulations. So, here also, all fields fluctuate around their mean values. This is achieved by adding divergence of some stochastic fluxes to NS and energy equations that satisfy the fluctuation-dissipation theorem. As a result, if you look at water simulated by FH, you'll see local fluctuations in all fields even though the global values of the same fields remain constant. So, the Mach number is irrelevant here to address compressibility. S |
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Tags |
compressible liquid, compressible solver, equation of state, herhothermo, rhocentralfoam |
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