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Forum: FLUENT

January 25, 2019, 17:05

Replies: 10

Problem - Natural Convection

Views: 1,533

Posted By LuckyTran

Okay, cool. So just check to make sure your...

Okay, cool. So just check to make sure your solution is converged every time-step. And keep shrinking the time-step until it does.

A fast easy check is to get the Courant number (it's a field in...

Forum: FLUENT

January 25, 2019, 14:00

Replies: 10

Problem - Natural Convection

Views: 1,533

Posted By LuckyTran

Yes. You cannot pick arbitrarily your time-step...

Yes. You cannot pick arbitrarily your time-step size. You only need a temporal resolution of 180s because you only want to see 100 temperature points in time for comparison. But you need to pick one...

Forum: FLUENT

January 25, 2019, 10:17

Replies: 10

Problem - Natural Convection

Views: 1,533

Posted By LuckyTran

180s time-steps, what numerical Fourier and Biot...

180s time-steps, what numerical Fourier and Biot number is this for the solid? And what Courant number for the flow? Your time-steps are probably way too big.

Put some solution monitors, probably...

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