|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
Join Date: Oct 2009
Posts: 13
Rep Power: 17 ![]() |
Hello,
I am modelling blood clotting in a vessel. I want to couple the residence time of the blood in my geometry with my viscosity, whose i know the formula. How can i calculate the residence time of the blood in my geometry? I tried using a new volumetric variable and assign it to a subdomain, but i do not know wether the values i get are right. |
|
![]() |
![]() |
![]() |
![]() |
#2 | |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,976
Rep Power: 145 ![]() ![]() ![]() ![]() |
Yes, I think your approach should work. Use an additional variable with convection activated (but not diffusivity) and put a source term on it to increase its value by the timestep size each time step.
Quote:
|
||
![]() |
![]() |
![]() |
![]() |
#3 | |
Senior Member
Join Date: Jul 2009
Posts: 260
Rep Power: 18 ![]() |
Quote:
|
||
![]() |
![]() |
![]() |
![]() |
#4 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,976
Rep Power: 145 ![]() ![]() ![]() ![]() |
If you want to link the fluid residence time to viscosity the additional variable approach is much easier. It is tricky to do this with particles..... but not impossible.
|
|
![]() |
![]() |
![]() |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
TimeVaryingMappedFixedValue | irishdave | OpenFOAM Running, Solving & CFD | 33 | March 16, 2025 06:04 |
Residence time | AlwaysLearning | FLUENT | 5 | September 27, 2019 06:45 |
Differences between serial and parallel runs | carsten | OpenFOAM Bugs | 11 | September 12, 2008 11:16 |
Modeling in micron scale using icoFoam | m9819348 | OpenFOAM Running, Solving & CFD | 7 | October 27, 2007 00:36 |
residence time | Sugen Chetty | Main CFD Forum | 0 | January 28, 2002 09:50 |