adding features to elements of an existing mesh?

bunni · November 4, 2010, 11:28

Hi all

I'm relatively new to OF, so forgive if this is a silly question. I'm designing a mesh with blockMesh - not importing files from another program. So, the following happens
1) I make a tank with a drain at the bottom. So, I've made a few hex blocks, faces etc.
2) now I want to add a pipe to the side of the tank. So, is there a way to attach the pipe to the surface of the mesh? Because, if not, then I cut my tank in half, put pipe halfway up, but I've basically tripled my hex blocks - instead of the blocks being from the the bottom of the tank to the top, they are now bottom of tank to bottom pipe inlet; bottom pipe inlet to top pipe inlet; top pipe inlet top of tank. And, if I want to change the position of the pipe, it gets very involved.

Is there an easier way?

vkrastev · November 4, 2010, 14:03

The block-mesh utility allows you to build only block-structured meshes, which means that you must satisfy the consintency condition at the interface between two adiacent blocks. In a few words: if you add the "pipe block", than you have to split also the adiacent domain, and this is unavoidable.
Hope this helps

V.

November 4, 2010, 11:28	adding features to elements of an existing mesh?	#1
bunni Member Join Date: Mar 2010 Posts: 31 Rep Power: 17	Hi all I'm relatively new to OF, so forgive if this is a silly question. I'm designing a mesh with blockMesh - not importing files from another program. So, the following happens 1) I make a tank with a drain at the bottom. So, I've made a few hex blocks, faces etc. 2) now I want to add a pipe to the side of the tank. So, is there a way to attach the pipe to the surface of the mesh? Because, if not, then I cut my tank in half, put pipe halfway up, but I've basically tripled my hex blocks - instead of the blocks being from the the bottom of the tank to the top, they are now bottom of tank to bottom pipe inlet; bottom pipe inlet to top pipe inlet; top pipe inlet top of tank. And, if I want to change the position of the pipe, it gets very involved. Is there an easier way?

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
Fluent dynamic mesh 'remeshing' method for pyramid elements	DarrenC	FLUENT	14	December 11, 2015 05:58
Moving mesh	Niklas Wikstrom (Wikstrom)	OpenFOAM Running, Solving & CFD	122	June 15, 2014 07:20
basic of mesh refinement	arya	CFX	4	June 19, 2007 13:21
Merging mesh elements in ICEM	Felix	CFX	1	May 9, 2007 11:33
CFX4.3 -build analysis form	Chie Min	CFX	5	July 13, 2001 00:19

November 4, 2010, 14:03		#2
vkrastev Senior Member Vesselin Krastev Join Date: Jan 2010 Location: University of Tor Vergata, Rome Posts: 368 Rep Power: 21	The block-mesh utility allows you to build only block-structured meshes, which means that you must satisfy the consintency condition at the interface between two adiacent blocks. In a few words: if you add the "pipe block", than you have to split also the adiacent domain, and this is unavoidable. Hope this helps V.