grid independence in ansys fluent

farshads83 · July 25, 2019, 04:38

how can i do grid independence?
what parameters should i use?
averege nusselet number / number of element?
temperature / number of element?

LuckyTran · July 26, 2019, 12:36

Look up Grid Convergence Index. It's simple and understanding it gives you a basic understanding of how grid sensitivity can be measured.

A good place to start is to pick a single parameter (average nusselt number is a good one) and compare that across simulations. Once you master how to do grid convergence index for a single parameter, you can apply it to multi-parameter scenarios. But you should start with basics.

July 25, 2019, 04:38	grid independence in ansys fluent	#1
farshads83 New Member far Join Date: Jun 2019 Posts: 8 Rep Power: 7	how can i do grid independence? what parameters should i use? averege nusselet number / number of element? temperature / number of element?

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July 26, 2019, 12:36		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,754 Rep Power: 66	Look up Grid Convergence Index. It's simple and understanding it gives you a basic understanding of how grid sensitivity can be measured. A good place to start is to pick a single parameter (average nusselt number is a good one) and compare that across simulations. Once you master how to do grid convergence index for a single parameter, you can apply it to multi-parameter scenarios. But you should start with basics.