Curved blade fan meshing

rvl565 · November 6, 2013, 13:38

Hi,

I have a solidworks (all surface) drawing (curved airfoil blade) which i need to mesh in pointwise.
when i import the drawing (.SAT or .IGES ) i see two database curves at the blade and hub intersection. I am not able to mesh this geometry because of these double curves as some of them are open.

Also, SAT and IGES only give the airfoil cross section at the root and the tip. When i mesh the blade pointwise is not able to interpolate the airfoil cross-sections in between the root and tip and the mesh generated is like that of a curved plate of some sort.

Thanks for your help!

tcarrigan · November 6, 2013, 18:35

Can you do a drop down on the list of database entities and ensure that the pressure and suction blades surfaces do not exist? It may be that there is a single surface defining the blade. In this case you'll only see the boundaries of the surface...the root and tip curves.

If you truly only have curves present, you can always generate the surfaces using the bounding curves either by going to Create, Interopolate or Create, Coons Patch. These operations will generate either ruled or b-spline surfaces respectively.

November 6, 2013, 13:38	Curved blade fan meshing	#1
rvl565 Member RacMat Join Date: Jan 2013 Posts: 78 Rep Power: 13	Hi, I have a solidworks (all surface) drawing (curved airfoil blade) which i need to mesh in pointwise. when i import the drawing (.SAT or .IGES ) i see two database curves at the blade and hub intersection. I am not able to mesh this geometry because of these double curves as some of them are open. Also, SAT and IGES only give the airfoil cross section at the root and the tip. When i mesh the blade pointwise is not able to interpolate the airfoil cross-sections in between the root and tip and the mesh generated is like that of a curved plate of some sort. Thanks for your help!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Meshing very thin blade tip	Jenny	CFX	7	June 27, 2014 09:26
[ICEM] Hexa meshing of Wind Turbine blade. Help for Newbie please	federvo.mala	ANSYS Meshing & Geometry	4	June 8, 2013 04:19
Meshing a 3D, tapered and twisted blade with Gambit-TGrid	teskio	ANSYS Meshing & Geometry	0	July 3, 2009 11:36
Question on blade meshing	Jeffrey	CFX	0	March 7, 2008 18:13
meshing fan blade in tunnel...	fadly	CFX	4	August 10, 2007 17:52

November 6, 2013, 18:35		#2
tcarrigan Senior Member Travis Carrigan Join Date: Jul 2010 Location: Arlington, TX Posts: 161 Rep Power: 16	Can you do a drop down on the list of database entities and ensure that the pressure and suction blades surfaces do not exist? It may be that there is a single surface defining the blade. In this case you'll only see the boundaries of the surface...the root and tip curves. If you truly only have curves present, you can always generate the surfaces using the bounding curves either by going to Create, Interopolate or Create, Coons Patch. These operations will generate either ruled or b-spline surfaces respectively.