Mesh Reflection of symmetric parts

zandyz2003 · August 27, 2014, 04:09

Hello,

I am using the ICE Extension of CFX-Pre in order to simulate an CGI engine.
After the Mesh-generation with Icem I implemented the obtained Mesh in CFX and since the settings regarding Motion, Mesh, Flow and Simulation Seutp were made on Half of my Engine geometry (half a cylinder) I used the Mesh Reflecting option to obtain my complete, symmetric engine cylinder.

I thought that CFX will automatically adopt the flow options and boundaries to the reflected geometry, but it doesen't.
Can anybody tell me what I am doing wrong ?
I tried to simulate but, as expected, the second half of my cylinder is not beeing detected from the solver and an error occures.
Thank you in advance.

Best regards,

Andrei

mvoss · August 27, 2014, 04:54

CFX creates new names from the original faces, so you have to adopt the selection for every bc to take the old and new name.
Other option is to copy the mesh in ICEM with "inherit names".

zandyz2003 · August 27, 2014, 10:45

Hello,

Thanks for your answer.
The mesh is obtained using .rpl files, wich I created with cfx.
I presume the option with ICEM is not valid in my case.
How can I adopt the selection ? Should I create new Flow Settings for the duplicated side of my Cylinder ?
Thanks.

Best regards,

Andrei

mvoss · August 28, 2014, 09:00

Isn´t .rpl related to ICEM!?
CFX is not able to create meshes (afaik), only scale and move them. You create the mesh in ICEM, transfer it to CFX, apply the b.c. based on named selections.
So -either you put the "new"-faces in the correct parts in ICEM, or you change the settings for the b.c. in CFX-Pre.

August 27, 2014, 04:09	Mesh Reflection of symmetric parts	#1
zandyz2003 New Member Andrei Join Date: Aug 2014 Posts: 2 Rep Power: 0	Hello, I am using the ICE Extension of CFX-Pre in order to simulate an CGI engine. After the Mesh-generation with Icem I implemented the obtained Mesh in CFX and since the settings regarding Motion, Mesh, Flow and Simulation Seutp were made on Half of my Engine geometry (half a cylinder) I used the Mesh Reflecting option to obtain my complete, symmetric engine cylinder. I thought that CFX will automatically adopt the flow options and boundaries to the reflected geometry, but it doesen't. Can anybody tell me what I am doing wrong ? I tried to simulate but, as expected, the second half of my cylinder is not beeing detected from the solver and an error occures. Thank you in advance. Best regards, Andrei

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August 27, 2014, 04:54		#2
mvoss Senior Member Matthias Voß Join Date: Mar 2009 Location: Berlin, Germany Posts: 449 Rep Power: 20	CFX creates new names from the original faces, so you have to adopt the selection for every bc to take the old and new name. Other option is to copy the mesh in ICEM with "inherit names".

August 27, 2014, 10:45		#3
zandyz2003 New Member Andrei Join Date: Aug 2014 Posts: 2 Rep Power: 0	Hello, Thanks for your answer. The mesh is obtained using .rpl files, wich I created with cfx. I presume the option with ICEM is not valid in my case. How can I adopt the selection ? Should I create new Flow Settings for the duplicated side of my Cylinder ? Thanks. Best regards, Andrei

August 28, 2014, 09:00		#4
mvoss Senior Member Matthias Voß Join Date: Mar 2009 Location: Berlin, Germany Posts: 449 Rep Power: 20	Isn´t .rpl related to ICEM!? CFX is not able to create meshes (afaik), only scale and move them. You create the mesh in ICEM, transfer it to CFX, apply the b.c. based on named selections. So -either you put the "new"-faces in the correct parts in ICEM, or you change the settings for the b.c. in CFX-Pre.