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yolanda June 6, 2006 06:19

Hi! I want to model an input which lasts just a minute but I want my simulation to last 5 minutes to see the effect of the input. So my input follows a step function. How can I introduce this in CFX? Thank you!

Joe June 6, 2006 08:22

Re: Inlet
Search for "step" in the CFX Pre manual.

hagupta June 6, 2006 08:35

Re: Inlet
I am not sure if this would work, but no harm in giving this a try.

Define a "User Function" you can specify the values of the input at t=0, t=1min as the magnitude of Step t=1.01min magnitude=0 Toggle on the "Extend Max" checkbox.

You will then need to define a user expression that incorporates this user function.

The above procedure should work if time is allowed as an argument in User Function

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