Center of a mesh cell

pyroknife · July 9, 2015, 19:16

I have a structured mesh made of polyhedra (mostly hexahedra, and some pentahedra).
I am trying to find the "center" of each cell of this mesh.
These are irregular polyhedra, where none of the sides/faces are 100% parallel.

In the domain of meshing, when one speaks of the "center" of a cell, what type of center are they referring to? There's many different types of a "center."

For example, there's spatial centers, which is just an average of all the nodes that make up the cell. There's center of volume, center of mass, etc....

sbaffini · July 10, 2015, 06:25

You probably mean 'unstructured'. However, the following paper:

http://www.dept.ku.edu/~cfdku/papers/1999-AIAAJ.pdf

has the answer for arbitrary convex polygons/polyhedra.

July 9, 2015, 19:16	Center of a mesh cell	#1
pyroknife Member Join Date: Jan 2013 Posts: 39 Rep Power: 14	I have a structured mesh made of polyhedra (mostly hexahedra, and some pentahedra). I am trying to find the "center" of each cell of this mesh. These are irregular polyhedra, where none of the sides/faces are 100% parallel. In the domain of meshing, when one speaks of the "center" of a cell, what type of center are they referring to? There's many different types of a "center." For example, there's spatial centers, which is just an average of all the nodes that make up the cell. There's center of volume, center of mass, etc....

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[snappyHexMesh] problems generating clean mesh	Christian_tt	OpenFOAM Meshing & Mesh Conversion	2	June 20, 2019 06:39
Gambit problems	Althea	FLUENT	22	January 4, 2017 04:19
[snappyHexMesh] snappyHexMesh & Mesh around a missile	sasanghomi	OpenFOAM Meshing & Mesh Conversion	2	October 15, 2014 20:54
FvMatrix coefficients	shrina	OpenFOAM Running, Solving & CFD	10	October 3, 2013 15:38
fluent add additional zones for the mesh file	SSL	FLUENT	2	January 26, 2008 12:55

July 10, 2015, 06:25		#2
sbaffini Senior Member Paolo Lampitella Join Date: Mar 2009 Location: Italy Posts: 2,213 Blog Entries: 29 Rep Power: 41	You probably mean 'unstructured'. However, the following paper: http://www.dept.ku.edu/~cfdku/papers/1999-AIAAJ.pdf has the answer for arbitrary convex polygons/polyhedra.