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Thermal/Radiation problem.

Thermal/Radiation problem.

Thermal/Radiation problem.

(OP)
Hello,
I'm trying to simulate a problem, employing both convection and radiation as BCs at the outside walls of a box. I've applied radiation as RDSF (radiosity solver) and covection as CONV at the outter boundaries at the fixed ambient temperature (room one, 24 C), according to the examples. The heater inside the box is about 70 C, units (C) and temp. offset are set up. The results seem to be unrealistic: the temperature of the walls and of the most part of simulated area is lower than the ambient one, 19 C approx. Separately solved covection and radiation problems give expected results.
Thx.

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