[GAMBIT] meshing a turbine rotor in gambit

mamad7192 · March 7, 2015, 13:33

hello,
i'm trying to simulate a wind turbine but when i am creating a volume mesh it leads to an error that says lack of memory,i tried 4 gb and 8gb of ram and it does not use more than half of the ram but i still get the error!
anybody could help me?please.

-mAx- · March 9, 2015, 01:44

it sounds like you want to mesh your geometry in one shot.
If your geometry is simple, it may be successfull but, if your geometry has some complexity, then you will have hardware problem.
Can you display your geometry?

mamad7192 · March 12, 2015, 05:34

dear max,
you are right,i split my geometry and my memory problem is solved but i have negative volume and i think its due to boundary layer mesh,i changed some mesh sizing but i still have negative volumes.can you help me?
thank you1.jpg

2.jpg

-mAx- · March 13, 2015, 01:43

then try to mesh without BL, and check if you still have this issue, or not.

March 7, 2015, 13:33	meshing a turbine rotor in gambit	#1
mamad7192 New Member Join Date: Mar 2015 Posts: 28 Rep Power: 11	hello, i'm trying to simulate a wind turbine but when i am creating a volume mesh it leads to an error that says lack of memory,i tried 4 gb and 8gb of ram and it does not use more than half of the ram but i still get the error! anybody could help me?please.

March 9, 2015, 01:44		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	it sounds like you want to mesh your geometry in one shot. If your geometry is simple, it may be successfull but, if your geometry has some complexity, then you will have hardware problem. Can you display your geometry? mamad7192 likes this. __________________ In memory of my friend Hervé: CFD engineer & freerider

March 13, 2015, 01:43		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	then try to mesh without BL, and check if you still have this issue, or not. __________________ In memory of my friend Hervé: CFD engineer & freerider

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March 12, 2015, 05:34		#3
mamad7192 New Member Join Date: Mar 2015 Posts: 28 Rep Power: 11	dear max, you are right,i split my geometry and my memory problem is solved but i have negative volume and i think its due to boundary layer mesh,i changed some mesh sizing but i still have negative volumes.can you help me? thank you1.jpg 2.jpg