Hi to all. Iam using cfx from last one year. at present i have to deal wit hfluent.I am finding following problems in fluent.Pls help me in this regard. (1) How to give a boundary condition that is varying with respect to time.i.e. my condiitons is such that pressure is varying sinusodially. p=asin(wt).how to define this function in fluent. (2) For transient case how to see countours of variables at each time steps?whether we have to load different case files (These case files have been made a tdifferent time steps)? (3) How to do animation in fluent?suppose i want to see how my pressure is varying through different time steps.how to do this?

Hi All your queries can easily be dealt with fluent help.

1. For defining varying B.C. with time, you have to write an UDF.

2. while iteration, we can take contour pics at regular intervals of time through: solve--> monitors--> surface.

3. we can do animation files either by using animation option or by joining the contour pics at regular time intervals using some softwares that are freely downloadable from google.

with best wishes prasanth

Thanx prashant,but i have still queries. How to define thi udf? (2) how to take this countours .bacause i have experiend that by giving ur mentioned pat hit ,akes onlt text file having .out extention.