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Old   July 29, 2014, 10:49
Default Blood viscosity
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Hello.
I am a doctor. I have a little knowledge about CFD, but I want to learn.
Please help me.

I have an issue for blood viscosity.
I found that there exist lots of equation for both Newtonian and Non-newtonian fluid.

1) I have a Hematocrit for each patient. I don't know where do I have to put the Hct value.
Because the material property of blood shows only Molar mass and Density.

2) I know the Hct is a major determinant of Viscosity. How can I see the viscosity value according to Hct.

Thanks a lot. Could you please help me step by step?

HyoSuk
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Old   July 29, 2014, 16:56
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The following link may be of interest:

http://lhtc.epfl.ch/webdav/site/lhtc...0VISCOSITY.pdf
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Old   July 30, 2014, 12:28
Smile Where do I have to put the Hematocrit value on CFX-pre?
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Thanks, Opaque.
It is really helpful for me.
By the way, I want to know, where do I have to put the Hematocrit value on CFX-pre.
Does anybody kindly teach me?
HyoSuk
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Old   August 1, 2014, 13:05
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I don't have experience of modelling blood flows in CFD, however I do know that it is quite common. You're certainly not the first person to model blood flows in CFD.

I suggest you read some good journal articles of CFD applications using blood (it's probably best to read articles related to CFX and Fluent).

I believe Fluent has a tutorial which involves blood flow through an artery - but you can check this for yourself very easily (fire up Fluent, go to help then click on tutorials).

However in my opinion your first port of call should be to use water. I.e. get the model working with water. Then slowly increase the complexity (i.e. change water viscosity to blood viscosity, then switch entirely to blood as a material). More experience people may disagree with me here - however it's what I would do.
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Old   August 2, 2014, 20:00
Smile Thanks RicochetJ
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Dear RicochetJ
I appreciate your kind reply.
I will search more journal and Fluent tutorial.
Thanks
HyoSuk
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