Bullet flow field

edd123 · August 11, 2012, 06:52

Hi, I shoot long range target rifle for fun and for my own interest I want to try and replicate the results of the paper below using OpenFOAM.

The authors use Pointwise for mesh generation which costs. Does anyone have any recommendations for a new user of this software on using OpenFOAM's snappyhexmesh instead? I'm wary as to why these authors did not use it themselves.

I'm happy to put in the work on this myself but it would be good to be pointed in the right direction first by someone with a bit of experience. Thanks in advance

http://www.cfdthermo.tkk.fi/Teaching...lowFields1.pdf

elvis · August 13, 2012, 08:47

Hi,
maybe you want to read
A comprehensive tour of snappyHexMesh => http://www.openfoamworkshop.org/2012...ningSlides.tgz

There is also a new GUI Tool Helyx for preprocessing OF with snappyhexmesh (shm) that might be of interest for you, or you might want to use engrid (that is not using shm).
Discretizer goes in the same direction as Helyx but does not have the same capabilaties.

edd123 · August 13, 2012, 12:16

Hey thanks a million elvis. I've looked at Helyx-OS (free), engrid and Discretizer now and they seem excellent although I'm clueless on the subtleties. Are there any serious strengths or weaknesses for these three options I should consider before diving into one of them? If they're all equally good for the job it doesn't matter.

elvis · August 14, 2012, 07:46

Hello,

I think that Helyx-OS is the best "free" solution when dealing with SHM, it comes from a company that knows SHM very well.
engrid it also a very good meshing tool with another user in mind, the developer of engrid is very kind.

edd123 · August 14, 2012, 11:01

Thanks again elvis. I have tried getting helyx and engrid going on my fedora 16 machine and ballsed it up on both counts. I think it's time to call it a day and wait for someone with a bit more ability than myself to figure it out.
Thanks again, great forum!

August 11, 2012, 06:52	Bullet flow field	#1
edd123 New Member Join Date: Aug 2012 Posts: 5 Rep Power: 14	Hi, I shoot long range target rifle for fun and for my own interest I want to try and replicate the results of the paper below using OpenFOAM. The authors use Pointwise for mesh generation which costs. Does anyone have any recommendations for a new user of this software on using OpenFOAM's snappyhexmesh instead? I'm wary as to why these authors did not use it themselves. I'm happy to put in the work on this myself but it would be good to be pointed in the right direction first by someone with a bit of experience. Thanks in advance http://www.cfdthermo.tkk.fi/Teaching...lowFields1.pdf

August 13, 2012, 12:16		#3
edd123 New Member Join Date: Aug 2012 Posts: 5 Rep Power: 14	Hey thanks a million elvis. I've looked at Helyx-OS (free), engrid and Discretizer now and they seem excellent although I'm clueless on the subtleties. Are there any serious strengths or weaknesses for these three options I should consider before diving into one of them? If they're all equally good for the job it doesn't matter. Last edited by edd123; August 13, 2012 at 14:07.

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August 13, 2012, 08:47		#2
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	Hi, maybe you want to read A comprehensive tour of snappyHexMesh => http://www.openfoamworkshop.org/2012...ningSlides.tgz There is also a new GUI Tool Helyx for preprocessing OF with snappyhexmesh (shm) that might be of interest for you, or you might want to use engrid (that is not using shm). Discretizer goes in the same direction as Helyx but does not have the same capabilaties.

August 14, 2012, 07:46		#4
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	Hello, I think that Helyx-OS is the best "free" solution when dealing with SHM, it comes from a company that knows SHM very well. engrid it also a very good meshing tool with another user in mind, the developer of engrid is very kind.

August 14, 2012, 11:01		#5
edd123 New Member Join Date: Aug 2012 Posts: 5 Rep Power: 14	Thanks again elvis. I have tried getting helyx and engrid going on my fedora 16 machine and ballsed it up on both counts. I think it's time to call it a day and wait for someone with a bit more ability than myself to figure it out. Thanks again, great forum!