CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Is icoFoam a good solver to model blood?

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree2Likes
  • 2 Post By Bloerb

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 18, 2020, 13:16
Default Is icoFoam a good solver to model blood?
  #1
New Member
 
Ra Miro
Join Date: Aug 2020
Posts: 21
Rep Power: 6
ramrebol is on a distinguished road
Hello.


I would like to model the blood inside an artery (aorta). I'm considering the walls of the artery fixed, and the blood as a newtonian fluid, because the aorta is not too small. This fluid is described by the Navier--Stokes with divergence of the velocity equal to zero.


I was using icoFoam solver, but now I realize that icoFoam is for laminar and transient fluid only, but I suppose that the blood inside an artery could be a swirling or turbulent fluid. Do you think icoFoam is a good choice for this model? Or do you suggest to me another solver?
ramrebol is offline   Reply With Quote

Old   September 19, 2020, 10:32
Default
  #2
Senior Member
 
Join Date: Sep 2013
Posts: 353
Rep Power: 21
Bloerb will become famous soon enough
use pimpleFoam for unsteady and simpleFoam for steadyState flow. If you need to model FSI check out solids4foam on bitbucket.


icoFoam is basically just a stripped down version of pisoFoam -- so the option to add turbulence is removed to learn how solvers are coded in OpenFoam. And pisoFoam is a stripped down version of pimpleFoam...hence pimpleFoam for unsteady flow. icoFoam is however also sufficient in your case. It does however not have many additional options pimpleFoam has, which might be helpful later on. In both of them you can add various viscosity models like Casson and Carreau-Yasuda to model non newtonian effects of blood flow. For more complicated things like seperation effects inside blood vessels etc in certain diameters you'd need to switch to multiphase eulerEuler variants. For example red blood cells sticking to walls etc if you want to model them as a second continuous phase.


Keep in mind that blood is mostly laminar and can be non Newtonian in behavior. Turbulence is possible, but you shouldn't use the simple Re number. There are variations for pulsating flow...so it might be lower than the typical ~2300 for pipes. If i remember correctly ~900.
treem22 and merlinwilliams like this.
Bloerb is offline   Reply With Quote

Old   September 21, 2020, 10:42
Default
  #3
Senior Member
 
mkraposhin's Avatar
 
Matvey Kraposhin
Join Date: Mar 2009
Location: Moscow, Russian Federation
Posts: 355
Rep Power: 21
mkraposhin is on a distinguished road
Quote:
Originally Posted by ramrebol View Post
Hello.


I would like to model the blood inside an artery (aorta). I'm considering the walls of the artery fixed, and the blood as a newtonian fluid, because the aorta is not too small. This fluid is described by the Navier--Stokes with divergence of the velocity equal to zero.


I was using icoFoam solver, but now I realize that icoFoam is for laminar and transient fluid only, but I suppose that the blood inside an artery could be a swirling or turbulent fluid. Do you think icoFoam is a good choice for this model? Or do you suggest to me another solver?
Hi, I recently published QHDFoam solver, which was developed for low-Re (less than 10000) incompressible viscous flows - see https://github.com/unicfdlab/QGDsolv...gitef-dev-1912. In some cases it behaves better than standard PISO/SIMPLE algorithms. I hope, it would be useful for you.

Please, write if you have any issues about compilation or running. I also have MSc students who can help you to manage with setup.
mkraposhin is offline   Reply With Quote

Old   September 22, 2020, 00:28
Default
  #4
New Member
 
Ra Miro
Join Date: Aug 2020
Posts: 21
Rep Power: 6
ramrebol is on a distinguished road
Thanks mkraposhin, I going to revise your work.
ramrebol is offline   Reply With Quote

Reply

Tags
blood flow, icofoam, navier stokes equations

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[IHFOAM] The IHFOAM Thread Phicau OpenFOAM Community Contributions 392 September 8, 2023 19:10
PEMFC model with FLUENT brahimchoice FLUENT 22 April 19, 2020 16:44
Solver consists of DPM, P1 radiation, k-E model mvee OpenFOAM Pre-Processing 0 March 23, 2015 02:01
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
1-D model for blood flow in artery Robert Lichtenshtein Main CFD Forum 1 December 19, 2002 16:33


All times are GMT -4. The time now is 14:11.