CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

grid independence

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 5, 2010, 22:17
Default
  #41
New Member
 
jamie hong
Join Date: Jul 2010
Location: brunei
Posts: 19
Rep Power: 7
Robot is on a distinguished road
Dear Sir,


Dear Sir,

My model is square shape, 2D , simple model .The pink colour represent the reaction between reactant(e.g.glycerol with steam) , with the product (e.g. as hydrogen , carbon monoxide & carbon dioxide). I had key in the reactants & the products already by selecting:

->define
->materials
:name the each reactants & products
-Selecting material type : mixture
-Fluent mixture material : mixture-template
-key in all the reactants & products in properties (mixture species : name)
-key in number of mole for each reactant & product in properties(reaction:finite rate)

All the reactants & products can be obtain from the fluent database.

The red one represent the catalyst. I need to create the catalysts (e.g platinum-titanium oxide , platinum-silicon oxide and platinum-aluminium oxide ) . How should I do it?

CAn I directly change the mesh size in the gambit file ,than convert to mesh file ,to be open in fluent software??

Robot is offline   Reply With Quote

Old   August 19, 2010, 09:55
Default
  #42
New Member
 
Freddie Sizer
Join Date: Apr 2009
Posts: 19
Rep Power: 8
f_sizer is on a distinguished road
Quote:
Originally Posted by Mel
;56201
hello..

i am working on modelling a centrifugal pump (the impeller and its spiral casing).can anyone help me how to do this?i really need steps or procedures to draw the pump impeller in gambit.

thanks.
Hi Mel, when you create this model in ProE or any other CAD package, make sure the model matches the accuracy of gambit, i.e. dimension decimal places run to 10^-6 or below. If you do not do this then you will find gaps in between extrusions and will waste a lot of time creating virtual elements.
If you're not sure how to do this reply to me by private message, I can help with ProE. Catia does this by default.
f_sizer 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
grid independence questions lucifer FLUENT 0 December 14, 2009 20:59
unstructured mesh grid independence for Fluent Shane Schouten FLUENT 0 October 11, 2006 16:50
Grid independence check Mattis Voss FLUENT 1 November 23, 2005 11:30
Grid Independence problem for simple pipe geometry chanchala FLUENT 13 November 20, 2003 09:24
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 05:59


All times are GMT -4. The time now is 03:16.