CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

Regarding outlet bc in bifurcated arteries

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

LinkBack Thread Tools Search this Thread Display Modes
Old   September 8, 2017, 03:14
Default Regarding outlet bc in bifurcated arteries
New Member
Mohammed Ameenuddin
Join Date: May 2017
Posts: 9
Rep Power: 8
ch@resch is on a distinguished road
Hi all,

I am working on blood flow analysis in bifurcated arteries. My model has one inlet and two outlets with extended domain. The model is simplified using symmetry bc at one side. The main branch and side branch are of different diameters.

The flow is steady and in-compressible. I have gone through some literature which shows different boundary conditions that are used in blood flow modeling, like pressure outlet, outflow, impedance, murrays law and windkessel bc.

1. At present I have used constant pressure outlet BC (zero gauge pressure) at both exits. Is this BC valid to solve such problems? Or should I use murrays law where the flow rate is dependent on diameter.

2. The outlet bc like impedance and windkessel are used for mostly pulsatile flow conditions. Can they be applied to steady state analysis as well?

Note: there is insufficient clinical data, hence the outlet pressure is not known.

Kindly help me with my queries, which will help me to proceed furhter in my work

Thanks and regards
ch@resch is offline   Reply With Quote


blood flow, boundary condition

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
Volume fraction at outlet not known Bisht FLUENT 8 September 5, 2017 03:38
Pressure Outlet - Effect of domain bineet_aero STAR-CCM+ 3 April 5, 2016 05:51
Pressure Outlet - Effect of domain bineet_aero Main CFD Forum 3 April 5, 2016 05:50
Outlet BC for disturbed Poiseuille flow murx CFX 10 February 22, 2012 14:55
outlet boundary condition neil CFX 1 June 17, 2002 01:57

All times are GMT -4. The time now is 10:25.