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Showing results 1 to 11 of 11 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX November 6, 2016, 21:14

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks I am not familiar with the reconstruction... I am not familiar with the reconstruction approach. I know the godunov scheme has been effectively superseded by more schemes like SIMPLE and the coupled solver for general CFD but I am not familiar...

Forum: CFX November 6, 2016, 19:23

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks Most CFD solvers including Fluent are based on a... Most CFD solvers including Fluent are based on a SIMPLE algorithm (or its derivatives, such as SIMPLEC, PISO). That solves the equations as a single matrix per variable. So you solve the linearised...

Forum: CFX November 6, 2016, 17:36

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks Was the CFX simulation correctly set up? Properly... Was the CFX simulation correctly set up? Properly validated/verified? CFX probably would have a hard time being as good as the Fluent density based solver for shock wave flows. Was the Fluent...

Forum: CFX November 6, 2016, 04:43

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks On what basis do you say that? In my experience... On what basis do you say that? In my experience CFX is more accurate with lower dissipation that fluent for most cases. My justification is: * CFX has second order differencing as default, fluent...

Forum: CFX July 18, 2016, 06:05

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks The Navier Stokes equations have momentum... The Navier Stokes equations have momentum equations and a pressure/mass equation. But the momentum equation is only loosely coupled (in a mathematical sense) to the pressure/mass equation so you...

Forum: CFX February 8, 2016, 06:09

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks Which ever one you are most familiar with. Both... Which ever one you are most familiar with. Both software can do this sort of simulation, so choose the one you prefer to use. The most important thing is to use the software correctly and validate...

Forum: CFX July 22, 2014, 05:58

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks CFX can model chemical reactions. I have not done... CFX can model chemical reactions. I have not done a detailed comparison of reactions both of them can solve, but I suspect they can both handle most reactions you are likely to come across.

Forum: CFX March 23, 2014, 20:05

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks My guess is development is focussed on... My guess is development is focussed on reinforcing CFX's strengths in turbomachinery, multiphase and that sort of thing. I agree that there are few new features out of that area, and CFX's new...

Forum: CFX December 19, 2012, 06:01

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks My main problem with the lack of a true 2D solver... My main problem with the lack of a true 2D solver is that the solver runs an order of magnitude slower than it should. That is, a true 2D solver would run about 10 times faster than a 3D extruded 1...

Forum: CFX December 18, 2012, 19:53

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks Agreed, it is the most glaring missing feature in... Agreed, it is the most glaring missing feature in CFX. When I moaned about it to the developers a while back they replied to generate a 2D version would be a complete rewrite of the solver code, and...

Forum: CFX December 17, 2012, 04:40

Replies: 51 Difference between ANSYS CFX and Fluent? Views: 46,757 Posted By ghorrocks ANSYS bought CFX, then it still had some spare... ANSYS bought CFX, then it still had some spare cash so it bought Fluent as well. If you got the cash the easiest way to get market share is to buy it. So ANSYS has 2 codes due to its history of...

Showing results 1 to 11 of 11

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