CFD Online Logo CFD Online URL
Home > Forums > CFX

Question about the shock wave

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   January 25, 2005, 06:44
Default Question about the shock wave
Posts: n/a
Dear who can answer the phenomena formation?

Now, I am simulating the virtual impactor that ist the equipment for separate the small particle (about 0.03-0.3 microns) from the air stream.

First I simulate only one phase of air to see the profile of air velocity and the motion of it but I still cannot get the good profile. The good profile of air that will make the good separation of small particle will come from the shock wave phenomena that occur inside the impactor. The velocity should be change very very rapidly in front of the probe (shock wave). But in my work, it still not the shock wave because the velocity doesn't change rapidly. It still change step by step from 620 m/s to 500 m/s and then 400 and so on until 50 m/s.

Therefore, I would like to ask you about: The equation in CFD especially in CFX5.7 program can describe the shock wave phenomena or not? Or I have to program the Fortran code into the program?? Or I have to choose any features in the CFX program to make it can describe the shock wave phenomena

Thank you very much for your helping

Regard, Nucharin
  Reply With Quote

Old   January 25, 2005, 08:08
Default Re: Question about the shock wave
Posts: n/a
Yes it can model shock waves, but you will need a lot of mesh to capture the phenomenon. Try a simple problem frist, say 2D and then build up to your problem. Try using the mesh adaption that should help.
  Reply With Quote

Old   January 27, 2005, 05:44
Default Re: Question about the shock wave
Posts: n/a
Thank you very much for your suggestion "Khun Funster". I will try to model again. When I get the result, I will tell you later.
  Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
how to model shock wave generated from detonation? Maddy FLUENT 8 June 24, 2014 19:36
Shock tube simulation harish FLUENT 5 January 25, 2014 03:20
shock wave boundary layer interaction anand FLUENT 1 December 15, 2010 07:33
about local bump shock wave drag reduction fxzf Main CFD Forum 5 February 26, 2010 13:04
Shock Wave usker STAR-CD 8 July 8, 2009 13:22

All times are GMT -4. The time now is 21:02.