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In LES model, outlet temperature is different from the enthalpy balance.

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Old   October 25, 2022, 01:51
Default In LES model, outlet temperature is different from the enthalpy balance.
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ljw
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Hello everyone.
I am simulating flow inside a pipe.
The boundary condition is that at a pressure of 22.2 MPa, 390°C supercritical water flows in at 55 kg/h from the first inlet and 20°C water enters at 79 kg/h at the second inlet.

Is there any heat energy lost in the LES model?
In the k-epsilon transient model, it is consistent with the temperature calculated by the enthalpy balance.
When I simulate with the LES model, the result is slightly lower than that temperature.
Could you help or guide me in this matter?
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boundary condition, enthalpy balance, outlet temperature, temperatrue


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