CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Extracting fluid flow region from a solid body 3D (http://www.cfd-online.com/Forums/main/16265-extracting-fluid-flow-region-solid-body-3d.html)

Pradeep January 27, 2009 23:15

Extracting fluid flow region from a solid body 3D
 
Hi,

I have a solid body drawing of a component (only the solid part is there in the drawing) in which the liquid part is absent. i need to generate / extract the fluid volume from this solid body Proe drawing. What is the best way of doing this. Its like i have the proe drawing of a bottle (only the bottle solid volume) and i need to extract the liquid part inside. Only in my case the geometry is a bit more complex. Thanks in advance

user January 28, 2009 06:36

Re: Extracting fluid flow region from a solid body
 
I do the fluid extraction all the time, I use star-ccm+īs wrapping tool...

mettler January 28, 2009 11:57

Re: Extracting fluid flow region from a solid body
 
you can also mesh the bottle, and then coat it with glass or whatever material you define.

andy2o January 28, 2009 17:56

Re: Extracting fluid flow region from a solid body
 
It ways depends on which software you use. I suggest you tell people which software you can use if you want more help! If you're using one of the main CFD codes, I suggest you re-post your question in the forum for that code.

For example, if you can import the shape of the bottle into ANSYS DesignModeler (for CFX) you can perform any CAD clean up operations needed, then use a 'boolean operation' slice the 'bottle' from a cube of material, leaving the region occupied by fluid inside of the bottle.

Best regards, andy2o

Jim January 29, 2009 04:58

Re: Extracting fluid flow region from a solid body
 
Lovely, and what is it like working for ansys these days?

andy2o January 29, 2009 08:38

Re: Extracting fluid flow region from a solid body
 
I haven't a clue - I don't. Working with it can be a right pain at times...

Anyway, my post was on-topic and intended to highlight the methodology (boolean operations, chopping one solid with another) not any product. I assume every major geometry/mesh tool has similar features, although I'm sure the names change.

Sorry to upset your sensibilities - I'll watch out before using product names in this forum the future, though I think definite examples are sometimes useful.

andy2o


Pauli January 29, 2009 12:13

Re: Extracting fluid flow region from a solid body
 
It sounds like you need to create the fluid volume. The best way to do that depends upon the software you use & how complicated the geometry is.

Using your Pro-E coke bottle analogy, I'd iges out the fluid side surface. Then in Proam, I'd hfil the end. On more complicated pieces I'd likely use a combination of ProE & Hypermesh.



All times are GMT -4. The time now is 12:33.