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-   -   Pulsatile Blood Flow Inlet Velocity Profile (https://www.cfd-online.com/Forums/fluent/172610-pulsatile-blood-flow-inlet-velocity-profile.html)

Sicario June 2, 2016 06:36
Pulsatile Blood Flow Inlet Velocity Profile
 
Hi All,

I wonder if someone could help me. I'm working on my MSc project. I'm trying to run simulations on an artery and as the blood flow is pulsatile, I need to input the velocity profile. I have got data points of the Time vs velocity. So I have used the transient profile and input it a Tabular-Transient-Profile. Then at inlet boundary conditions I have selected the velocity points that I input. When I run simulations to obtain results it gives me an error.

Would you be able to tell me if I am doing something wrong?

Please let me know if you require any more information. Your help is much appreciated.

Regards

rafash2 June 2, 2016 12:49
Write your mail and I will send you my UDF for pulsatile inlet velocity. I think it will be useful for you
Regards

Sicario June 2, 2016 15:21
1 Attachment(s)
Quote:
Originally Posted by rafash2 (Post 603139)
Write your mail and I will send you my UDF for pulsatile inlet velocity. I think it will be useful for you
Regards
My email address is sineth_kr@live.co.uk.

So is the only way to input this data is using a UDF? I have attached the graph from the actual person. Do I have to obtain an equation for this graph to input it into Fluent ?

Thank you

rafash2 June 3, 2016 04:27
You can introduce the graph points in CFX, but Fluents only works with UDF´s for this type of BC, that I know.
I send you the UDF code to your mail.

reza252 January 6, 2017 08:42
pulsatile blood flow
 
could you please send me the UDF please? I have a same problem
reza.jmli@gmailcom

saumkl January 15, 2017 17:02
Could you send me the UDF as well?
saumkl@mail.uc.edu
Many Thanks!!!

saio23 February 22, 2017 14:54
hello i am doing my thesis if its not a problem can i have that udf too? thanks darthsaio@gmail.com

raminostadi February 23, 2017 06:39
Quote:
Originally Posted by Sicario (Post 603049)
Hi All,

I wonder if someone could help me. I'm working on my MSc project. I'm trying to run simulations on an artery and as the blood flow is pulsatile, I need to input the velocity profile. I have got data points of the Time vs velocity. So I have used the transient profile and input it a Tabular-Transient-Profile. Then at inlet boundary conditions I have selected the velocity points that I input. When I run simulations to obtain results it gives me an error.

Would you be able to tell me if I am doing something wrong?

Please let me know if you require any more information. Your help is much appreciated.

Regards
I'm working on blood flow and I write transient profile and my simulation run completely. I think transient profile is the best way to input boundry Co.
Can you tell me which error received when you read your transient profile?

Deepak_Kolke March 23, 2017 01:01
Pulsatile Blood Flow Inlet Velocity Profile
 
Quote:
Originally Posted by raminostadi (Post 638192)
I'm working on blood flow and I write transient profile and my simulation run completely. I think transient profile is the best way to input boundry Co.
Can you tell me which error received when you read your transient profile?
please share the details of transient profile...deepaknitk2015@gmail.com

Deepak_Kolke March 23, 2017 01:03
Please mail me the UDF and details of inlet profile...
deepaknitk2015@gmail.com

Thank you so much...

Deepak_Kolke March 23, 2017 01:06
Quote:
Originally Posted by rafash2 (Post 603139)
Write your mail and I will send you my UDF for pulsatile inlet velocity. I think it will be useful for you
Regards
Please send the inlet profile details and UDF...
deepaknitk2015@gmail.com

thank you so much

sumitcool February 10, 2020 04:26
Pulsatile velocity inlet udf for blood flow transient simulation
 
Hi ,

I am working patient-specific blood flow simulation. I want to give Pulsatile Udf for my geometry using UDF in Ansys fluent. So i would like to know to define if anybody has please share it

sumitcool February 10, 2020 04:30
Quote:
Originally Posted by rafash2 (Post 603139)
Write your mail and I will send you my UDF for pulsatile inlet velocity. I think it will be useful for you
Regards
sumitkumar.rs.bme17@iitbhu.ac.in

AlexanderZ February 10, 2020 21:37
ansys fluent customization manual
look for DEFINE_PROFILE macro
other option is to search through this forum

cherrygirl May 12, 2022 04:15
Quote:
Originally Posted by Sicario (Post 603049)
Hi All,

I wonder if someone could help me. I'm working on my MSc project. I'm trying to run simulations on an artery and as the blood flow is pulsatile, I need to input the velocity profile. I have got data points of the Time vs velocity. So I have used the transient profile and input it a Tabular-Transient-Profile. Then at inlet boundary conditions I have selected the velocity points that I input. When I run simulations to obtain results it gives me an error.

Would you be able to tell me if I am doing something wrong?

Please let me know if you require any more information. Your help is much appreciated.

Regards
could you please send me the UDF please? I have a same problem
gengyy1998@163.com

cherrygirl May 12, 2022 04:16
Quote:
Originally Posted by rafash2 (Post 603139)
Write your mail and I will send you my UDF for pulsatile inlet velocity. I think it will be useful for you
Regards
could you please send me the UDF please? I have a same problem
gengyy1998@163.com


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