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open channel BC

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Old   January 30, 2022, 08:16
Default open channel BC
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Hello guys,
i am modeling following problem in fluent. i tried mass flow inlet but my simulation went wrong.
how can i solve this problem in transient calculation? i used this udf for free surface level. do i use pressure inlet?
thanks a lot ..

#include "udf.h"
real f_surface=0.0 ;
real ti ;
if (ti < 1)
f_surface = 0.5 ;
f_surface = 5 ;
return f_surface;
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fluent, open channel flow

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