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-   -   Solution technique/ Mesh type/ Cell limit/ Multi-zone regions in CFX (https://www.cfd-online.com/Forums/cfx/63336-solution-technique-mesh-type-cell-limit-multi-zone-regions-cfx.html)

zandi April 6, 2009 03:59
Solution technique/ Mesh type/ Cell limit/ Multi-zone regions in CFX
 
Hi friends

could you help me whith these titles in CFX?
Solution technique/ Mesh type/ Cell limit/ Multi-zone regions
and also turbulence models
and multi phase.

could you fill this table for me please?
http://www.gigaimage.com/images/zz6xhn2qa9vyiba6u8s.jpg
or
http://www.gigaimage.com/download.ph...9vyiba6u8s.jpg

thank you

ghorrocks April 6, 2009 19:34
Hi,

I think your table is about 90% wrong. The solution technique line is wrong, CFX cannot do 2D, CFX does not do structured multiblock meshes (it treats them as unstructured meshes) and Fluent can do both structured and unstructured meshes, Fluent does not have a 150k cell limit, Fluent can be driven by the GUI, CFX and Fluent offer more turbulence models than listed, both CFX and fluent offer lagrangian particle tracking (and eularian models too), Fluent can do multi-phase... etc etc.

Why are you comparing the codes? Are you comparing them for purchase?

Glenn Horrocks

zandi April 7, 2009 06:20
Quote:
Originally Posted by ghorrocks (Post 212133)
Hi,
Quote:
Originally Posted by ghorrocks (Post 212133)

I think your table is about 90% wrong. The solution technique line is wrong, CFX cannot do 2D, CFX does not do structured multiblock meshes (it treats them as unstructured meshes) and Fluent can do both structured and unstructured meshes, Fluent does not have a 150k cell limit, Fluent can be driven by the GUI, CFX and Fluent offer more turbulence models than listed, both CFX and fluent offer lagrangian particle tracking (and eularian models too), Fluent can do multi-phase... etc etc.

Why are you comparing the codes? Are you comparing them for purchase?

Glenn Horrocks



Dear Glenn Horrocks
thank you very much for useful reply
I'm new in CFD & CFX
I want to use it in hydralics structures and found an old article (part of a paper) comparing FLUENT and old version of CFX named FLOW3D (not the new FLOW 3D). this table is from that and I want to know how much is it right for new versions and compare the capabilities of these two codes.
I may to send you that text.
regards
Zandi

ghorrocks April 7, 2009 19:06
Hi,

CFX V11 (the current version) has very little in common with CFX 3 and 4. The Flow3D days even predate this so any information you have about Flow3D has no relevance to the current CFX. Also note Flow3D is the name of a totally indepandant CFD solver which focusses on free surface flows, this software has nothing to do with CFX at all.

I guess the paper you got this comparison from is probably 15 years old and totally out of date. Throw the paper out and contact the vendors of the software for more up to date capability lists.

Glenn Horrocks

zandi April 10, 2009 01:05
Hi
thanks a lot.
How about the features that considered in article (table), not useful?

zandi April 10, 2009 01:06
Quote:
Originally Posted by ghorrocks (Post 212258)
Hi,

CFX V11 (the current version) has very little in common with CFX 3 and 4. The Flow3D days even predate this so any information you have about Flow3D has no relevance to the current CFX. Also note Flow3D is the name of a totally indepandant CFD solver which focusses on free surface flows, this software has nothing to do with CFX at all.

I guess the paper you got this comparison from is probably 15 years old and totally out of date. Throw the paper out and contact the vendors of the software for more up to date capability lists.

Glenn Horrocks
Hi
thanks a lot.
How about the features that considered in article (table), not useful?


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