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April 15, 2010, 13:08 |
Wind turbine blade meshing
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#1 |
Member
tom
Join Date: Feb 2010
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3.jpgHi all,
can somebody tell me the strategy of meshing the wind turbine blade in Gambit. I don't wanne use Tgrid/Hybird to mesh it automaticly. What I want to do is using Hex element to cooper the volume. But I don't know how to do that. I put my model and other people's models into the attachment to make that straightforward. sorry for my poor English Han |
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April 16, 2010, 02:23 |
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#2 |
Super Moderator
Maxime Perelli
Join Date: Mar 2009
Location: Switzerland
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you have to split your domain into mappable subvolumes. Check your left picture, you can see the volume decomposition.
Gambit's tutorial 7 may be helpful (Modeling Flow in a Tank)
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April 16, 2010, 07:48 |
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#3 | |
Member
tom
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Quote:
Thanks for your tips, I would try the Gambit's tutorial 7 firstly. About the left picture, I still don't know how the sector face can be meshed by using mapped quad. Why when I mesh that face, Gambit only permit the way of pave. Han |
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April 16, 2010, 08:04 |
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#4 |
Super Moderator
Maxime Perelli
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Try to enforce the Quad -Tri Primitive schema
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April 16, 2010, 08:16 |
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#5 |
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tom
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April 17, 2010, 10:40 |
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#6 |
Member
tom
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Hi mAx
I split the domain with three parts, the volume which contain the blade still can not be meshed by using the way of copper. I think the problem comes from I use the volume to subtract the blade. The other two volumes can be mesh by using cooper successfully. I don't know how to do know, can you give me a little help? Han |
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April 18, 2010, 05:12 |
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#7 |
Super Moderator
Maxime Perelli
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you need more splits around the blade.
Meshing hexa isn't easy at all, and you can forget meshing your geometry with just few splits. You need to isolate and decompose volumes around your blade you can upload your .dbs file on a share server I will try to do something
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April 18, 2010, 06:57 |
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#8 | |
Member
tom
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Quote:
Han |
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April 19, 2010, 03:26 |
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#9 |
Super Moderator
Maxime Perelli
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you can isolate your profile like that:Sans titre.jpg
Then you will be able to mesh them with your won hexa paremeters (eg: refinement).
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April 19, 2010, 07:28 |
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#10 | |
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tom
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Quote:
Han |
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April 19, 2010, 08:11 |
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#11 |
Super Moderator
Maxime Perelli
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it comes from your model (Gambit)
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April 19, 2010, 09:25 |
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#12 |
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tom
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April 22, 2010, 11:49 |
wind turbine analysis
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#13 |
New Member
yashwant
Join Date: Apr 2010
Posts: 20
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hi i am doing wind turbine analysis in fluent. will u please tell me how to give the boundary condition. what should i rotate wind rotor or air domain around the rotor. and how to find out the power developed by wind turbine. and cp too.
please help me i am in big trouble |
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