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Coupled Flow correct boundary conditions. help please.


Hi Experts,


I have a plastic vessel containing chilled water and am trying to simulate how long it takes for the water to warm up to ambient temperature, but cant figure out how to apply the boundary conditions....

Please could you help me understand how to setup boundary conditions on my model:


Plastic vessel in 20 deg C air, containing 5 deg C water


I'm confused where to apply flow surfaces, and free convection to environment


NX 10 prt,fem,sim attached. Thanks for your time.

thanks for your help.