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Dustin Lee April 30, 2003 03:58

Global length
Dear all: Can someone please tell me "How the Global lengeh is calculated?" from CFX-5.5 out-file.

Robin April 30, 2003 11:33

Re: Global length
Square root of the volume.

SHRINIVAS May 1, 2003 02:13

Re: Global length

I saw your reply for a question about global length. you told it is square root of volume. If so, which cell volume, as this volume change from cell to cell


Robin May 1, 2003 13:57

Re: Global length
The volume of the entire mesh, hence the GLOBAL length scale.


Dustin Lee May 2, 2003 00:49

Re: Global length
Thanks to Robin & Shrinivas. When I simplied the volume, its clear that the "Global length" scale is the "cubic root of the Volume".

Robin May 3, 2003 22:08

Re: Global length
Sorry, cube root of the volume :-P

cfxuser May 14, 2003 17:43

Re: Global length
You should really calculate your own characteristic length scale appropriate to the problem, as the value calculated based on the cubed root of the domain volume rarely produces a value appropriate for the physical problem, the same for the time-scale also.

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