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Problem with Turbulent Heat Flux Temperature boundary condition |
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March 7, 2014, 09:32 |
Problem with Turbulent Heat Flux Temperature boundary condition
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Member
Manuel
Join Date: Jan 2013
Location: Bremen
Posts: 33
Rep Power: 13 |
Dear All,
I have a problem with the compressible::turbulentHeatFluxTemperature boundary condition. I am performing an heat transfer computation with some heat source surfaces. On these surfaces I want to impose fixed heat fluxes (in the range 500-30000 W/m2). The problem I encounter is that, starting from the first iteration, the temperature diverges approaching unphysical values on the corresponding surfaces. I tried to bound the temperature (bounding value 2000 K). Unfortunately this does not help the temperature to approach realistic values and furthermore, using the wallHeatFlux utility I checked that the "real" heat fluxes acting on these surfaces are different from the imposed ones. Have you got any idea about the reason why this problem happens?? Thank you. Manuel |
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Tags |
boundary condition, buoyant flows, heat flux, heat transfer, temperature bc |
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