[hamidcfd]

Hello guys,
i am modeling wave generation with open channel wave BC and i have another velocity inlet in domain which case free surface level up during time.
how can i modify free surface for wave generation in wave inlet during transient calculation? do i use UDF for modification? how solve this problem?!
thanks a lot...Capture.jpg

[hamidcfd]

hello-You can specify a transient profiles for a Free Surface Level for the relevant open channel boundaries as shown in the example below:
/************************************************** ******************* Example UDF that demonstrates transient profile for free surface level ************************************************** ********************/ #include "udf.h" #define H 1.5 /* Original Free surface level */ #define T0 0.2 /* Time */ DEFINE_TRANSIENT_PROFILE(fs_level, current_time) { real level; if (current_time <= T0) level = H - current_time; else level = H - T0; return level; }

[FaSe]

Originally Posted by hamidcfd

Hello guys,
i am modeling wave generation with open channel wave BC and i have another velocity inlet in domain which case free surface level up during time.
how can i modify free surface for wave generation in wave inlet during transient calculation? do i use UDF for modification? how solve this problem?!
thanks a lot...Attachment 36471

Hi Hamid
I want to generate wave at water surface in an open channel. I am using ANSYS Fluent 16. I use Wave Boundary Condition for the inlet and generate the waves but the waves damp along the channel.(shown in the picture). I saw your simulation that there was not a damp in the wave amplitudes. How can i simulate surface waves without any damp?

Appreciate any help.

02.JPG