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Ansys CFX Turbogrid, Problem with blade leading edge sitting on hub at inlet |
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#1 |
New Member
Chaithu
Join Date: May 2013
Location: USA
Posts: 16
Rep Power: 13 ![]() |
Hi friends,
I am still learning CFX Turbogrid and have completed examples. I am given a blade profile of stator blade and when I input bladegen file, The geometry appers to be like the one in the image attached. The The leading edge of the blade is sitting on the hub and I am unable to define topology because the periodic surface to too close for O grid generation around the blade. Can anyone please help me solve this problem ? Thanks a lot |
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#2 |
New Member
anonymous
Join Date: Jan 2013
Posts: 3
Rep Power: 13 ![]() |
Hi friend,
I don’t know if i understand your problem the right way. Looks like the upper right control point in your picture is too close to the blade edge. You can move it by clicking at it and then enter new coordinates (axial, radial normally). Should be discussed in one of the tutorials if I remember right. Cheers! |
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#3 | |
New Member
Chaithu
Join Date: May 2013
Location: USA
Posts: 16
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Quote:
Problem solved. |
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#4 |
Senior Member
Have a nice time!
Join Date: Feb 2016
Location: mech.eng.ahmedmansour@gmail.com
Posts: 291
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I have a negative volume mech...How can I solve it? Thanks
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#5 |
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Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
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#6 |
Senior Member
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Join Date: Feb 2016
Location: mech.eng.ahmedmansour@gmail.com
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Thanks but the mesh cannot be updated sir.
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#7 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
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The problem is in your mesh, so if you can't change your mesh then you are stuck.
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#8 |
Senior Member
Have a nice time!
Join Date: Feb 2016
Location: mech.eng.ahmedmansour@gmail.com
Posts: 291
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You mean I have to change the mesh settings from turbogrid?
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#9 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,749
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Your mesh has turned inside out. CFX cannot work with a mesh like that and has no way of fixing it. You have to go back to whereever you made the mesh and fix it there.
(I am assuming that you are not using moving mesh and that the mesh was generated like this) |
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#10 |
Senior Member
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Join Date: Feb 2016
Location: mech.eng.ahmedmansour@gmail.com
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What mesh? the picture is for the geometry in turbogrid...I have to control points to solve the problem..If you have any idea about that tell me...Thanks
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