Cyclic power source in CHT applied to a face

Using SimScale Thermal
1

I have a heat exchanger that I want to apply a Power source to two different faces, 23,000watts, 3 seconds on, 8 seconds off.

The “Absolute Power Source” under Power Sources (Advanced Concepts) in CHT2 only seems to allow for the entire body, nor does it allow for cyclic loads.

I want to apply this energy for the 3sec on, 8sec off and see what the steady state temp is (assuming it doesn’t melt first (set by “Field Limits” in Numerics).

2

Hi FMiuser,

thanks for reaching out to us here in the forum.

As you want to assign the power source to the faces I would recommend assigning a turbulent heat flux foxed power source as described here:

In addition, as in a steady-state simulation time is not considered, I assign the average power of the 23kW for each second. So 2.09 kW should be the equivalent power source.

Best regards
Sebastian