Two or Three Dimensional for a coil

Asghari_M · June 6, 2011, 10:24

Hi all;

I have a coil with a circular cross section according to the following attached pattern . Just As anybody observes, this pattern has two returns (two elbow couple). My question is if I can model this problem by a two dimensional model or I have to model this example by a three dimensional one. The boundary conditions are same for every cross section. If your answer is ok, Please lead me how to consider this configuration.

Thanks a lot for any help.
M.asghari

Drawing4.jpg

Asghari_M · June 7, 2011, 04:19

Again,Suppose , a gas within the coil is my model being heated by a liquid fluid. Which boundary condition is suitable for outlet Temperature?
Diricleh or nueman ,d()/dn=0.0 or another one?
What's your opinion?
What about should we take for other outlet boundary condition,too ? For example, the pressure or velocity.

Also, consider a semi-cylinder surrounds this coil. How can I mesh this three dimensional pattern by subtracting this semi-cylinder from coil?
Actually, which mesh type with which quality can be used for this problem?
Thx again for any help and consult.

June 6, 2011, 10:24	Two or Three Dimensional for a coil	#1
Asghari_M Senior Member Mehdi Asghari Join Date: Feb 2010 Posts: 127 Rep Power: 16	Hi all; I have a coil with a circular cross section according to the following attached pattern . Just As anybody observes, this pattern has two returns (two elbow couple). My question is if I can model this problem by a two dimensional model or I have to model this example by a three dimensional one. The boundary conditions are same for every cross section. If your answer is ok, Please lead me how to consider this configuration. Thanks a lot for any help. M.asghari Drawing4.jpg

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June 7, 2011, 04:19		#2
Asghari_M Senior Member Mehdi Asghari Join Date: Feb 2010 Posts: 127 Rep Power: 16	Again,Suppose , a gas within the coil is my model being heated by a liquid fluid. Which boundary condition is suitable for outlet Temperature? Diricleh or nueman ,d()/dn=0.0 or another one? What's your opinion? What about should we take for other outlet boundary condition,too ? For example, the pressure or velocity. Also, consider a semi-cylinder surrounds this coil. How can I mesh this three dimensional pattern by subtracting this semi-cylinder from coil? Actually, which mesh type with which quality can be used for this problem? Thx again for any help and consult.