[mesh manipulation] extrudeMesh for buffer in a pipe

cfd4res · January 25, 2019, 06:29

I came across this problem while creating a mesh for a pipe with many bends using blockMesh and extrudeMesh.
As seen in the figure below , I created a pipe using the project feature and then used extrudeMesh to create a bend. But I cannot create the buffer as I wanted as I cannot increase the diameter of the pipe.

Figure.jpg

I think I need to use three different files to create the buffer zone in the pipe.

Can anyone please help me with this?

jherb · January 28, 2019, 13:25

You could use extrudeMesh to create the pipe without the modified area in the buffer zone and then a Python script using this library (https://codereview.stackexchange.com/a/101298) to modify the node locations of the nodes inside the buffer. (Should not be too hard, because you know the z-coordinates of the buffer, so you can search for the nodes and modify their x/y values accordingly).

January 25, 2019, 06:29	extrudeMesh for buffer in a pipe	#1
cfd4res New Member anonymous Join Date: Mar 2018 Posts: 11 Rep Power: 8	I came across this problem while creating a mesh for a pipe with many bends using blockMesh and extrudeMesh. As seen in the figure below , I created a pipe using the project feature and then used extrudeMesh to create a bend. But I cannot create the buffer as I wanted as I cannot increase the diameter of the pipe. Figure.jpg I think I need to use three different files to create the buffer zone in the pipe. Can anyone please help me with this?

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January 28, 2019, 13:25		#2
jherb Senior Member Joachim Herb Join Date: Sep 2010 Posts: 650 Rep Power: 22	You could use extrudeMesh to create the pipe without the modified area in the buffer zone and then a Python script using this library (https://codereview.stackexchange.com/a/101298) to modify the node locations of the nodes inside the buffer. (Should not be too hard, because you know the z-coordinates of the buffer, so you can search for the nodes and modify their x/y values accordingly).