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-   -   udf to output velocity at some point (http://www.cfd-online.com/Forums/fluent/31947-udf-output-velocity-some-point.html)

Jun August 5, 2003 14:52

udf to output velocity at some point
 
I'd like to write out the velocity vs time at several points. I defined some point surfaces, but seems I can't access these points by UDF. Anybody know if I am right or not? If I am right, so how can I output these stuffs? Any advice would be appreciated.

Jun

Lohen August 6, 2003 04:48

Re: udf to output velocity at some point
 
Hi, I don't think you need an UDF to do so. You can easily make a macro to save velociy at several point at every time step or more ! and get read the files normally named .out, with any text reader ! Ciao

ap August 6, 2003 07:46

Re: udf to output velocity at some point
 
You don't need UDF for this. Just define your points in FLUENT and set a Surface Monitor on them, choosing the variable you want to monitor.

A monitor allows you to plot and save to file the values you need.

Each monitor can save only a variable in a single point, so you need to define a monitor in each point for each variable you want to save.

See the manual for more info.

Hi

ap

Lohen August 6, 2003 17:36

Re: udf to output velocity at some point
 
Hi, sorry , I mistook macro and monitor saving. yeah, that's right, follow the advice of Ap above !!!

bye

Jun August 19, 2003 13:43

Re: udf to output velocity at some point
 
Thanks a lot, guys.


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