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Why does the surface output for temperature not match the temperature that I specify for the SURFACE_INTEGRATED_CONDITION command in my periodic therm

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The temperature that is specified in the SURFACE_INTEGRATED_CONDITION command corresponds to the "bulk temperature". The bulk temperature is defined as: Tbulk = 1/A * INTEGRAL( Â (rho * Cp * U * T) / ( rho_avg * Cp_avg * U_avg ) ) dA. This is a mass averaged temperature. The SURFACE_OUTPUT command returns the area averaged temperature.


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