CFX 5.5.1 and LES - maximal residuals

January 21, 2003, 11:20

Hello everybody !

Is there someone who knows if it is possible to do Large Eddy Simulation in CFX 5.5.1 ?

On another subject : how do you know where the maximal residuals are when running a computation in CFX 5.5.1 and the solution oscillates a bit.

Thank you very much.

Olivier

January 21, 2003, 15:07

Yes it is! Look in the RULES file and talk to your support.

January 22, 2003, 05:29

LES: I don't know nothing about that, but i suppose not.

location of max res: at about the end of the .out file there's a section with "Location of max. residuals" (printing out the node No. and the coordinates (xyz))

or you can edit your def/res file and do "add expert parameter section" + "add parameter" + "output eq. residuals" then run some more steps and plot it in post (the residuals will be available as variables)

January 22, 2003, 05:33

Thank you bogezc !

Olivier

January 22, 2003, 06:43

It is possible to do LES with CFX5. I would advice you to do a search in the CFX forum, and you will see a number of responses to that question.

January 21, 2003, 11:20	CFX 5.5.1 and LES - maximal residuals	#1
Olivier Macchion Guest Posts: n/a	Hello everybody ! Is there someone who knows if it is possible to do Large Eddy Simulation in CFX 5.5.1 ? On another subject : how do you know where the maximal residuals are when running a computation in CFX 5.5.1 and the solution oscillates a bit. Thank you very much. Olivier

January 21, 2003, 15:07	Re: CFX 5.5.1 and LES - maximal residuals	#2
Holidays Guest Posts: n/a	Yes it is! Look in the RULES file and talk to your support.

January 22, 2003, 05:29	Re: CFX 5.5.1 and LES - maximal residuals	#3
bogesz Guest Posts: n/a	LES: I don't know nothing about that, but i suppose not. location of max res: at about the end of the .out file there's a section with "Location of max. residuals" (printing out the node No. and the coordinates (xyz)) or you can edit your def/res file and do "add expert parameter section" + "add parameter" + "output eq. residuals" then run some more steps and plot it in post (the residuals will be available as variables)

January 22, 2003, 05:33	Re: CFX 5.5.1 and LES - maximal residuals	#4
Olivier Macchion Guest Posts: n/a	Thank you bogezc ! Olivier

January 22, 2003, 06:43	Re: CFX 5.5.1 and LES - maximal residuals	#5
Jan Rusås Guest Posts: n/a	It is possible to do LES with CFX5. I would advice you to do a search in the CFX forum, and you will see a number of responses to that question.

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