Radiation mechanism in FLOW-3D

FRAN · October 4, 2010, 08:38

I want to know if FLOW-3D calculates the radiation mechanism of thermal transfer. I mean the heat transfer between 2 solids at a different temperature. We see that you only can define an emissivity to void but not an absortivity.
Also we have done an example with a thermal shadowing area and a body heated at high temperature and it seems that there is not distance-heat radition transference
Thanks in advance
Vss

MuxaB · October 4, 2010, 22:06

you are right, the radiation model in flow-3d only accounts for fluxes from a surface to infinity. There is no model to model radiative heat exchange between two bodies.

October 4, 2010, 08:38	Radiation mechanism in FLOW-3D	#1
FRAN New Member Join Date: Mar 2009 Posts: 2 Rep Power: 0	I want to know if FLOW-3D calculates the radiation mechanism of thermal transfer. I mean the heat transfer between 2 solids at a different temperature. We see that you only can define an emissivity to void but not an absortivity. Also we have done an example with a thermal shadowing area and a body heated at high temperature and it seems that there is not distance-heat radition transference Thanks in advance Vss

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October 4, 2010, 22:06		#2
MuxaB Senior Member michael barkhudarov Join Date: Mar 2009 Location: Sante Fe, New Mexico, USA Posts: 337 Rep Power: 18	you are right, the radiation model in flow-3d only accounts for fluxes from a surface to infinity. There is no model to model radiative heat exchange between two bodies.