Sphere in STAR-CD
Hi, I am creating a simple sphere in STAR-CD. I can create it with the sperical coordiates system. After creation, when I go to check cells, it shows negative volume error. I did check for left and right handed cells and then made all right handed. But then it shows some crack errors. After that if I use VMERGE ALL , message comes.. vertices deleted. Then my whole geometry vanishes. And if I check by COUN CELLs, the message shows the celltype and number of cell and number of cell in cplot as expected. still I can not see geometry. Please let me know if anybody knows how to remove error in Sphere in STAR-CD. Thank you in advance
Sameer |
Re: Sphere in STAR-CD
I am having the same problem. I can generate the sphere. Then flip to right handed cells and I create the couple. I do have 'crack' error which means unconnected regios. can anyone help me for this.
sachin |
Re: Sphere in STAR-CD
You will find the corret way of meshing a sphere on
http://www.beilke-cfd.de/sphere.mdl.gz Using the "vd3d" command in a spherical coordinate system is crap. Creating the mesh in prostar requires the use of blocks and some smoothing. This mesh was created using GridPro within 2 minutes. |
Re: Sphere in STAR-CD
For those who have to use ProStar:
cdel all vdel all ctdel 4 20 ctype 1 csys 1 vc3d -0.5 0.5 10 -0.5 0.5 10 -0.5 0.5 10 cset all live surf create cset news type 4 vcex 10 ,, cset ,,, norm 0.05 cset news type 4 cdel cset cset news flui live surf create cset news type 5 vset none vell 15 loca 10 sphere vset news cset vmod vset 1 cset news type 1 vell 200 cplo |
Re: Sphere in STAR-CD
Thanks Joern. I appreciate it.
Sachin |
Re: Sphere in STAR-CD
Hello, I had the same thing in torroidal C.S. - I guess it was incorrect determination of radius (-r,r) of angles. If you try to play with these parameters you can get what you need.
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