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Old   May 11, 2013, 14:05
Question Qustion about CFX expression bug
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Meimei Tian
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Hi,

The expression

'if(atstep<50.5,1 [s],1e-5 [s])'

is used to set up the time step changing from 1 s to 1e-5 s after the accumulated time step reaches 50.

Why it doesn't work? Any bug?
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Old   May 12, 2013, 08:12
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Seems OK based on the glimpse you have given us - but if it does not work can you please show the error message?
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Old   May 12, 2013, 13:18
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Quote:
Originally Posted by ghorrocks View Post
Seems OK based on the glimpse you have given us - but if it does not work can you please show the error message?

It just doesn't shift the time step length after the accumulated time step number passed 50.
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Old   May 12, 2013, 18:10
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Quote:
Originally Posted by lnk View Post
It just doesn't shift the time step length after the accumulated time step number passed 50.
Yes. Exactly. It is not shifting. Why?
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Old   May 12, 2013, 20:29
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No idea. There are lots of easy work-arounds, so I would not worry about the details of why this does not work and just use another method to define your time step.
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