How to write udf code for Pulsatile blood flow simulations?

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Teguh Hady Ariwibowo

Hi,

i think you can use transient pulsating in inlet BC or use Transient Table. you can read this thread.

https://studentcommunity.ansys.com/thread/fluent-transient-velocity-inlet-udf/

Vivek Tiwari

Sumit Kumar

if your condition is periodic/time-dependent then you can go for the transient table. It's lots easier than UDF.

if it depends on some logics/conditions then you can go for UDF.

Minghou Liu

# include "udf.h" DEFINE_PROFILE (inlet_velocity,thread,time) { real flow_time; face_t f; begin_f_loop(f,thread) { flow_time=CURRENT_TIME; if(flow_time