[GAMBIT] meshing big volumes

niloogh · March 11, 2013, 10:30

hi
I want to mesh a big wind turbin using gambit.but I have problems becaus of its big geometry.it takes a lot of time.what can I do??

-mAx- · March 12, 2013, 01:45

reduce size of your mesh by using size function for instance.
Pictures may help

niloogh · March 12, 2013, 15:34

tnx for your help

but I dont know which mesh size in suitable for this volume.is 10mm suitable for this purpose?

Far · March 12, 2013, 16:37

Measure size of geometry on different parts and apply size function accordingly.

For example is edge length is 10 then size of 1 would produce 10 or so elements. There apply sizing function with size 1, growth rate 1.1 to 1.2 and maximum size to 10 or as required.

niloogh · March 13, 2013, 16:19

I did it but its meshing takes a lot of hours and finally it fails

niloogh · March 16, 2013, 07:07

I have got one error during meshing
error: out of memory while meshing.
what can I do to solve this problem??

Far · March 16, 2013, 07:11

Use larger sizes in size function and try

ghost82 · March 20, 2013, 09:00

And split your volume into different volumes so to not have out of memory error message; obviously mesh one volume a time.

Daniele

March 11, 2013, 10:30	meshing big volumes	#1
niloogh Member Join Date: Mar 2013 Posts: 48 Rep Power: 13	hi I want to mesh a big wind turbin using gambit.but I have problems becaus of its big geometry.it takes a lot of time.what can I do??

March 12, 2013, 01:45		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	reduce size of your mesh by using size function for instance. Pictures may help __________________ In memory of my friend Hervé: CFD engineer & freerider

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March 12, 2013, 15:34		#3
niloogh Member Join Date: Mar 2013 Posts: 48 Rep Power: 13	tnx for your help but I dont know which mesh size in suitable for this volume.is 10mm suitable for this purpose?

March 12, 2013, 16:37		#4
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	Measure size of geometry on different parts and apply size function accordingly. For example is edge length is 10 then size of 1 would produce 10 or so elements. There apply sizing function with size 1, growth rate 1.1 to 1.2 and maximum size to 10 or as required.

March 13, 2013, 16:19		#5
niloogh Member Join Date: Mar 2013 Posts: 48 Rep Power: 13	I did it but its meshing takes a lot of hours and finally it fails

March 16, 2013, 07:07		#6
niloogh Member Join Date: Mar 2013 Posts: 48 Rep Power: 13	I have got one error during meshing error: out of memory while meshing. what can I do to solve this problem??

March 16, 2013, 07:11		#7
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	Use larger sizes in size function and try

March 20, 2013, 09:00		#8
ghost82 Senior Member Rick Join Date: Oct 2010 Posts: 1,016 Rep Power: 26	And split your volume into different volumes so to not have out of memory error message; obviously mesh one volume a time. Daniele