[russh]

Good Day to All,

I'm a bit puzzled by a phenomenon that I'm seeing during a set of CFD simulations.

As an example, Say you have an enclosure with an internal heat source that is thermally connected to this enclosure.

There is a solar load beating down on the enclosure. Simulation shows, when the object is static, the Heat source reaches 180C.
Then, with the object moving at 70 mph, the temperature due to the forced convection reduces to 150C.

Then, I decide to run the simulation without the solar load. Same scenarios, results at stationary are 165C. So a DT 15C reduction due to no solar loading, this is understandable.

What I'm really puzzled about is if I then run at 70 mph (No Solar Load), I get almost the same value as 70mph with Solar Load = 150C.

Does anyone have any suggestions as to why this maybe, as my thinking is that you should see a reduction in both instances without solar loading.