what is CFL number?

cfdiscool · February 10, 2010, 14:00

Hello

What is CFL number (abbreviation

) and how can we define it ?

How to set/manipulate it in FLUENT?

What is its affect on Solver/solution/

I am new to FLUENT and trying to understand these basics behind the solver and how it works...

thanks for enlightening reply .....

nice day

Philipov · February 10, 2010, 14:38

It can be Courant-Fridrih-Levy number (I think that was the full name...) it is related to unsteady flows and represents the effect on the timestep... You can find more in net or users guides...

cfdiscool · February 10, 2010, 15:27

i have just find this thread somewhere in the forum now: CFL is well explained in different contexts:

http://www.cfd-online.com/Forums/mai...r-insight.html

Thank you again

Philipov · February 11, 2010, 03:56

May be it is a good idea first to search in the forum.... this is an advice to all new members.... do not fill the forum with questions that were solved.

February 10, 2010, 14:00	what is CFL number?	#1
cfdiscool New Member sed Join Date: Feb 2010 Posts: 19 Rep Power: 16	Hello What is CFL number (abbreviation ) and how can we define it ? How to set/manipulate it in FLUENT? What is its affect on Solver/solution/ I am new to FLUENT and trying to understand these basics behind the solver and how it works... thanks for enlightening reply ..... nice day __________________ Life is not always converging ... but u can relax

February 10, 2010, 15:27		#3
cfdiscool New Member sed Join Date: Feb 2010 Posts: 19 Rep Power: 16	i have just find this thread somewhere in the forum now: CFL is well explained in different contexts: http://www.cfd-online.com/Forums/mai...r-insight.html Thank you again __________________ Life is not always converging ... but u can relax

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February 10, 2010, 14:38		#2
Philipov Senior Member Svetlin Filipov Join Date: Mar 2009 Location: United Kingdom Posts: 176 Rep Power: 17	It can be Courant-Fridrih-Levy number (I think that was the full name...) it is related to unsteady flows and represents the effect on the timestep... You can find more in net or users guides...

February 11, 2010, 03:56		#4
Philipov Senior Member Svetlin Filipov Join Date: Mar 2009 Location: United Kingdom Posts: 176 Rep Power: 17	May be it is a good idea first to search in the forum.... this is an advice to all new members.... do not fill the forum with questions that were solved.