Handling Symmetric Geometry

gandhipratik90 · January 20, 2015, 02:02

Hello,

I am modeling ESP. The model of my ESP is symmetric about vertical mid-plane.

Can you suggest me ideas to reduce the computational domain so as to save computational efforts and time ?

One idea is as the ESP is symmetric about vertical plane. . .can I divide it along that plane and solve the case? If YES then how to split the geom in STAR-CCM+ along a plane.

Do I need to give periodic BC across the symmetry plane?

Please respond to the query...hoping that I can save the computational time, efforts and memory...

me3840 · February 9, 2015, 02:15

If your model is symmetric you can create a simple block part and use a subtraction operation to get the part of the domain that's symmetric.

You don't need to give a periodic condition for a symmetry plane - you use a symmetry condition.

January 20, 2015, 02:02	Handling Symmetric Geometry	#1
gandhipratik90 New Member Pratik Gandhi Join Date: Nov 2014 Location: Chennai Posts: 3 Rep Power: 11	Hello, I am modeling ESP. The model of my ESP is symmetric about vertical mid-plane. Can you suggest me ideas to reduce the computational domain so as to save computational efforts and time ? One idea is as the ESP is symmetric about vertical plane. . .can I divide it along that plane and solve the case? If YES then how to split the geom in STAR-CCM+ along a plane. Do I need to give periodic BC across the symmetry plane? Please respond to the query...hoping that I can save the computational time, efforts and memory...

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[DesignModeler] Fill tool - grouping the faces of a complicated geometry?	HeikkiT	ANSYS Meshing & Geometry	8	July 20, 2016 08:37
Export geometry file from ansys mechanical	browns6	Structural Mechanics	0	August 27, 2013 17:19
[mesh manipulation] Split a ready mesh for a symmetric geometry	Artur	OpenFOAM Meshing & Mesh Conversion	0	June 11, 2013 17:44
Problem Importing Geometry ProE to CFX	fatb0y	CFX	3	January 14, 2012 20:42
2D geometry to 3D geometry	Sgonzalezg	ANSYS Meshing & Geometry	11	April 8, 2011 12:02

February 9, 2015, 02:15		#2
me3840 Senior Member Join Date: Nov 2010 Location: USA Posts: 1,232 Rep Power: 25	If your model is symmetric you can create a simple block part and use a subtraction operation to get the part of the domain that's symmetric. You don't need to give a periodic condition for a symmetry plane - you use a symmetry condition.