CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Running, Solving & CFD

A beginner from graphics research

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 31, 2006, 17:43
Default Dear all: I'm a new OpenFOA
  #1
New Member
 
simon lee
Join Date: Mar 2009
Posts: 2
Rep Power: 0
aqui is on a distinguished road
Dear all:

I'm a new OpenFOAM user from graphics research.
I need to simulate a fish swimming under water, and it seems that I need to modify the source code somehow.

However, I couldn't find a good instruction on how to begin searching the code... Can anyone let me know how can I get a big picture, or class structure of the source code?


I'd very appreciate your help.
Thank you.
aqui is offline   Reply With Quote

Old   November 1, 2006, 17:39
Default Hi Simon! May I ask how you
  #2
Assistant Moderator
 
Bernhard Gschaider
Join Date: Mar 2009
Posts: 3,915
Rep Power: 40
gschaider will become famous soon enoughgschaider will become famous soon enough
Hi Simon!

May I ask how you want to utilize the results of the OF-calculation. In other words how fast (in terms of calculation time) do you need them? I don't want to discourage you, but if you need them in approximate real-time then OF is to accurate (or too slow) for you.

"fish swimming under water" is a bit vague. For instance: do you want a rigid or a flexible (moving) fish?

I guess you already looked at the "official" documentation (the user guides, doxygen).
In addition I would suggest http://www.mfix.org/mwiki/index.php/Main_Page

regards
Bernhard
__________________
Note: I don't use "Friend"-feature on this forum out of principle. Ah. And by the way: I'm not on Facebook either. So don't be offended if I don't accept your invitation/friend request
gschaider is offline   Reply With Quote

Old   November 3, 2006, 12:44
Default Thank you so much for your hel
  #3
New Member
 
simon lee
Join Date: Mar 2009
Posts: 2
Rep Power: 0
aqui is on a distinguished road
Thank you so much for your help!

The way fish moves is:

we specify the motion of the fin w.r.t. the center of mass of the body. Then the entire of the motion of the fish within the water should be calculated automatically.

So, we have some area, defined as 'rigid body', but we don't treat it as a boundary condition, but as a special fluid type requiring some additional constraints.


We don't care about the real-time motion. We want to connect the output data ( phase, velocity, pressure field at a certain time ) to the Maya rendering engine.

thanks!

Regards,
Simon
aqui is offline   Reply With Quote

Old   November 3, 2006, 13:21
Default If accuracy is less important,
  #4
Senior Member
 
Mark Olesen
Join Date: Mar 2009
Location: http://olesenm.github.io/
Posts: 777
Rep Power: 18
olesen will become famous soon enough
If accuracy is less important, perhaps Real-Time Fluid Dynamics could be useful for your application:

html index

pdf paper
olesen is offline   Reply With Quote

Reply

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
Question about research and research hpc licence Michael FLUENT 0 September 26, 2008 05:45
Beginner to CFD Balaji Main CFD Forum 2 July 11, 2004 00:25
CFD beginner saravanan Main CFD Forum 3 August 16, 2003 07:38
cfd beginner Rupesh Main CFD Forum 5 August 1, 2003 13:02
CFD(beginner) zuki Main CFD Forum 5 November 12, 2002 14:07


All times are GMT -4. The time now is 21:09.