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Showing results 1 to 14 of 14 Search took 0.00 seconds. Search: Posts Made By: Far

Forum: CFX December 21, 2012, 06:32

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far According to modeling guide : 1. SAS is... According to modeling guide : 1. SAS is improved URANS approach and gives you the LES like behavior in detached flow regions. 2. Contrary to DES (RANS/LES) SAS cannot be forced to go unsteady...

Forum: CFX December 20, 2012, 05:49

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far What are the requirements of SAS model? What are the requirements of SAS model?

Forum: CFX September 28, 2011, 12:19

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far Problem solved. I used the default time stepping... Problem solved. I used the default time stepping method, that is auto time scale. Just reduced the Timescale Factor by 10, so that my default time step of 5.5 * 10e-05 reduced to 5.5*10e-06. This...

Forum: CFX August 6, 2011, 02:16

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far Thanks ghorrocks I cant understand how to... Thanks ghorrocks I cant understand how to change the time scale from local to physcial, becuase when I try to change it by edit run in progress it gives me error. and what should be the...

Forum: CFX August 5, 2011, 07:34

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far I have made another mesh with aspect ratio of... I have made another mesh with aspect ratio of 1000 (yplus = 10, double precision solver) and used the SSG RSM model. This time again I had hard time in converging the solution, but due to higher...

Forum: CFX July 26, 2011, 14:16

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far Local time stepping Is local time stepping useful for stiff numerics ?

Forum: CFX July 25, 2011, 05:46

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far Problem is solved by using the yplus 10 mesh (to... Problem is solved by using the yplus 10 mesh (to lower the aspect ratio in boundary layer) and double precision solver (further relaxing the aspect ratio problem. Shall share the complete...

Forum: CFX July 24, 2011, 04:18

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far This is from the fluent help about RSM models ... This is from the fluent help about RSM models Using the RSM creates a high degree of coupling between the momentum equations and the turbulent stresses in the flow, and thus the calculation can be...

Forum: CFX July 23, 2011, 06:41

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far I have only 4 GB RAM and DELL 670 workstation... I have only 4 GB RAM and DELL 670 workstation with duel xeon 3.4 Ghz processora

Forum: CFX July 23, 2011, 05:29

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far This is what I got from CFX help 1. In... This is what I got from CFX help 1. In principle, the same time step can be used for all turbulence model variants, but pragmatically the time step should be reduced for the Reynolds Stress Model...

Forum: CFX July 22, 2011, 08:21

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far This is very much diffult, I would rather say... This is very much diffult, I would rather say impossible to get the aspect ratio 100 in boundary layer.

Forum: CFX July 22, 2011, 02:41

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far should it be less than 1000? or even less! should it be less than 1000? or even less!

Forum: CFX July 21, 2011, 23:55

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far which mesh parameter is most impotant ? my... which mesh parameter is most impotant ? my minimum angle is 28 deg (far from the wall surface) and maximum aspect retio is 8000. I believe that after selecting the double precision solver aspect...

Forum: CFX July 21, 2011, 12:39

Replies: 33 SMC models Convergence Views: 5,534 Posted By Far SMC models Convergence Dear Fellows I am trying to simulate the rotor 37 transonic rotor. I have completed the mesh independence study, y plus independence study, made compresion between wall function and yplus 1...

Showing results 1 to 14 of 14

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