[ANSYS Meshing] Skewness on the higher side

abhijithmohan · May 15, 2014, 22:35

hi, am NEW TO ansys fluent 14. I am doing a simulation on a counter flow heat exchanger. I am getting the shadow walls and conduction occurs across the wall while am giving a coarse mesh. But when i make the mesh finer my solution is no t getting converged. On iterating sometimes it shows "temprature limited to .... (some value)" and iteration goes on .. when I checked the quality of the mesh i found that Skewness and orthogonal quality is out of the allowable limits. How can i correct this?
Thanks in advance

nnprashant · May 16, 2014, 14:09

Hallo Abhijith, did you mesh your geometry using Ansys Meshing or ICEM CFD ? Check the locations of bad skewness and orthogonal angle. Perform some local mesh refinements. If possible share your geometry, I can have a look .

abhijithmohan · May 18, 2014, 02:20

Thankyou Prashanth for replying . I am using ICEM CFD. I have attached the geometry please have a look. I the mean time I l try to do the local refinements as you said.

abhijithmohan · May 20, 2014, 06:50

thankyou Prshanth .
i was able to solve the problem

May 15, 2014, 22:35	Skewness on the higher side	#1
abhijithmohan New Member Abhijith Mohan Join Date: Mar 2014 Posts: 12 Rep Power: 12	hi, am NEW TO ansys fluent 14. I am doing a simulation on a counter flow heat exchanger. I am getting the shadow walls and conduction occurs across the wall while am giving a coarse mesh. But when i make the mesh finer my solution is no t getting converged. On iterating sometimes it shows "temprature limited to .... (some value)" and iteration goes on .. when I checked the quality of the mesh i found that Skewness and orthogonal quality is out of the allowable limits. How can i correct this? Thanks in advance

May 20, 2014, 06:50	problem solved	#4
abhijithmohan New Member Abhijith Mohan Join Date: Mar 2014 Posts: 12 Rep Power: 12	thankyou Prshanth . i was able to solve the problem

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May 16, 2014, 14:09		#2
nnprashant New Member Engineer Join Date: Mar 2013 Posts: 18 Rep Power: 13	Hallo Abhijith, did you mesh your geometry using Ansys Meshing or ICEM CFD ? Check the locations of bad skewness and orthogonal angle. Perform some local mesh refinements. If possible share your geometry, I can have a look .