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Old   June 19, 2012, 02:52
Default write an expression
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Francesco
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Hi guys,
I have to write an expression which takes in account the rotational speed of an impeller from 0 to 6000 RPM.
Can someone help me?
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Old   June 19, 2012, 08:49
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Luis Filipe Fabiani
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Francesco,

Can you send the expression? Does the speed changes with time?
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Old   June 19, 2012, 10:05
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Francesco
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The point is that I've never write an expression before and I have no idea how to do.
It's something within step(Accumulated time step + ...).
I just need a way to reach 6000RPM from 0.
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Old   June 19, 2012, 16:59
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Luis Filipe Fabiani
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The CFX tutorials are a good place to start. Maybe you should do some simple expresions to get the hang of it. Then move to the more advanced stuff.
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