Help with UDF for a cardiac pulse

ch@resch · October 5, 2017, 06:27

Hi,

I want to model a pulsatile blood flow in an artery using FLUENT. I have written UDF for fully developed flow and pulsatile flow like a sine wave. But I do not know how to implement a physiological velocity profile (as attached) in my simulations using UDF.

I would appreciate any help provided as this will be useful for my research.

velocity profile.jpg

Thanks and Regards

Sadia Khan · June 29, 2018, 04:57

Did you get this udf?
i need it tooo

zobekenobe · July 2, 2018, 16:14

I will send or cite a paper sometime, where the authors modeled a similar pulsatile flow with an equation and that equation was used to define the velocity.

You can also model the trend using the Fourier Transform or Wavelets and then read in the data in the UDF and set the velocity

ch@resch · August 16, 2018, 02:21

Thanks that would be really helpful if you could share them.

October 5, 2017, 06:27	Help with UDF for a cardiac pulse	#1
ch@resch New Member Mohammed Ameenuddin Join Date: May 2017 Posts: 9 Rep Power: 9	Hi, I want to model a pulsatile blood flow in an artery using FLUENT. I have written UDF for fully developed flow and pulsatile flow like a sine wave. But I do not know how to implement a physiological velocity profile (as attached) in my simulations using UDF. I would appreciate any help provided as this will be useful for my research. velocity profile.jpg Thanks and Regards

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June 29, 2018, 04:57		#2
Sadia Khan New Member Sadia Khan Join Date: Jun 2018 Posts: 2 Rep Power: 0	Did you get this udf? i need it tooo

July 2, 2018, 16:14		#3
zobekenobe Member zobekenobe Join Date: Mar 2009 Location: Dublin, Ireland Posts: 72 Rep Power: 17	I will send or cite a paper sometime, where the authors modeled a similar pulsatile flow with an equation and that equation was used to define the velocity. You can also model the trend using the Fourier Transform or Wavelets and then read in the data in the UDF and set the velocity

August 16, 2018, 02:21		#4
ch@resch New Member Mohammed Ameenuddin Join Date: May 2017 Posts: 9 Rep Power: 9	Thanks that would be really helpful if you could share them.