How calculate simulation duration - CFX Solver

eRzBeNgEl · January 24, 2011, 08:23

Hello

Is there a way to calculate the simulation session time for running? (until the Solver process is done...)
Example: Iteration Numbers * ...*...*= xxxx min

Thanks

bharath · January 24, 2011, 09:15

see the out file for simulation start time and finish time.

eRzBeNgEl · January 24, 2011, 09:23

Hehe, i mean in advance :-)

ghorrocks · January 24, 2011, 17:35

This is very difficult to estimate with any accuracy in general. If you have a number of similar simulations you might be able to get a feel for it but if a new simulation pops up it will all change.

There are many levels of convergence required for a CFD simulation and getting estimates in advance of how quickly they converge is just about impossible.

January 24, 2011, 08:23	How calculate simulation duration - CFX Solver	#1
eRzBeNgEl Senior Member Join Date: Dec 2010 Posts: 135 Rep Power: 16	Hello Is there a way to calculate the simulation session time for running? (until the Solver process is done...) Example: Iteration Numbers * ......= xxxx min Thanks

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January 24, 2011, 09:15		#2
bharath Senior Member Bharath kumar Join Date: Apr 2009 Posts: 169 Rep Power: 17	see the out file for simulation start time and finish time.

January 24, 2011, 09:23		#3
eRzBeNgEl Senior Member Join Date: Dec 2010 Posts: 135 Rep Power: 16	Hehe, i mean in advance :-)

January 24, 2011, 17:35		#4
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	This is very difficult to estimate with any accuracy in general. If you have a number of similar simulations you might be able to get a feel for it but if a new simulation pops up it will all change. There are many levels of convergence required for a CFD simulation and getting estimates in advance of how quickly they converge is just about impossible.