[heke402]

Hi all,

I know there are some discussion on how to use Fluent Scheme to change boundary condition and I followed their instructions and made it work. Now the only question I have is if I define the boundary condition using UDF (DEFINE_PROFILE()) then what the format of the scheme should be? The scheme file I wrote is as the following

(define (changeboundary)
(cond

((and (>= (rpgetvar 'flow-time) 0.001) (<= (rpgetvar 'flow-time) 0.002))

(ti-menu-load-string "define/boundary-conditions/zone-type 10 wall"))
(else

(ti-menu-load-string "define/boundary-conditions/zone-type 10 mass-flow-inlet")

(ti-menu-load-string "define/boundary-conditions mass-flow-inlet 10 mass_flow y"))
)
)

where "mass_flow" is my UDF name. I tried several times by executing the scheme file at each time step but it looks like Fluent did not recognize the UDF I used to define the boundary.