periodic

hosam1180 · April 30, 2018, 13:08

I'm working in nuclear reactor sub-channel analysis in Ansys CFX , and i want to simulate heat transfer and flow of coolant, and some of my difficulties is how to make periodic boundary, and another one is how to simulate solid domain inside fluid domain?

evcelica · April 30, 2018, 15:14

Periodic flow only? Or flow and heat transfer? The latter can get difficult with CFX.
If flow only, you would use a translational periodic interface between your inlet and outlet. It is best to have a 1:1 mesh at these two locations. Tutorials show several examples of this.

Simulating heat transfer between solid and liquid domains is standard, there are many examples in the tutorials. You just use a domain interface between the two domains.

hosam1180 · May 2, 2018, 08:35

=evcelica;690800

in reactor sub channel periodic.is rotational between horizontal sides and vertical side, and heat tansfer between fluid and mixing vane

April 30, 2018, 13:08	periodic	#1
hosam1180 New Member Hosam Join Date: Mar 2018 Posts: 7 Rep Power: 8	I'm working in nuclear reactor sub-channel analysis in Ansys CFX , and i want to simulate heat transfer and flow of coolant, and some of my difficulties is how to make periodic boundary, and another one is how to simulate solid domain inside fluid domain?

May 2, 2018, 08:35	replay	#3
hosam1180 New Member Hosam Join Date: Mar 2018 Posts: 7 Rep Power: 8	=evcelica;690800 in reactor sub channel periodic.is rotational between horizontal sides and vertical side, and heat tansfer between fluid and mixing vane

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April 30, 2018, 15:14		#2
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	Periodic flow only? Or flow and heat transfer? The latter can get difficult with CFX. If flow only, you would use a translational periodic interface between your inlet and outlet. It is best to have a 1:1 mesh at these two locations. Tutorials show several examples of this. Simulating heat transfer between solid and liquid domains is standard, there are many examples in the tutorials. You just use a domain interface between the two domains.