velocity equation for pulsation blood flow
velocity equation for pulsation blood flow
(OP)
Hi,
I want to simulate blood flow with Finite element software and want to put velocity as boundary condition in inlet, for pulsation blood flow I need to have velocity function and it should be related to time, angular velocity of blood and so on, actually I could not find that, anybody knows that equation or more information?
Regards
Ali
I want to simulate blood flow with Finite element software and want to put velocity as boundary condition in inlet, for pulsation blood flow I need to have velocity function and it should be related to time, angular velocity of blood and so on, actually I could not find that, anybody knows that equation or more information?
Regards
Ali





RE: velocity equation for pulsation blood flow
Mike Halloran
Pembroke Pines, FL, USA
RE: velocity equation for pulsation blood flow
Yes, Angular velocity. it comes from omega( angular frequency of blood flow).
RE: velocity equation for pulsation blood flow
By the way, please Red Flag all but one of your duplicate messages and ask that they be removed.
Mike Halloran
Pembroke Pines, FL, USA
RE: velocity equation for pulsation blood flow
RE: velocity equation for pulsation blood flow
Mike Halloran
Pembroke Pines, FL, USA
RE: velocity equation for pulsation blood flow
I guess somewhere in the circulatory system, blood flow rotates perhaps where the heart valves.
RE: velocity equation for pulsation blood flow
I couldn't find the right paper for the right price, e.g. free to the taxpayers who paid for the work.
Mike Halloran
Pembroke Pines, FL, USA
RE: velocity equation for pulsation blood flow
While it's convenient to model periodic phenomena using sinewaves (and angular velocity as a parameter), I can't find a reference asserting that arterial blood flow is actually sinusoidal or quasi-sinusoidal in any sense other than it's periodic.
There is also potential for some confusion because at the Reynolds numbers typical of blood systems, there is potential for quasi-stable vortices, which would have a real angular velocity of their own.
Mike Halloran
Pembroke Pines, FL, USA
RE: velocity equation for pulsation blood flow
The best you could do would be to model an average diameter, completely unblocked, straight artery. And that estimate should get you in the ball park, but is in no way, shape, or form accurate.
"Scientists dream about doing great things. Engineers do them." -James Michener
RE: velocity equation for pulsation blood flow
"Scientists dream about doing great things. Engineers do them." -James Michener
RE: velocity equation for pulsation blood flow
"We have a leadership style that is too directive and doesn't listen sufficiently well. The top of the organisation doesn't listen sufficiently to what the bottom is saying." Tony Hayward CEO, BP
**********************
"Being GREEN isn't easy" ..Kermit
http://www.youtube.com/watch?v=hpiIWMWWVco
http://vir
RE: velocity equation for pulsation blood flow
RE: velocity equation for pulsation blood flow
What you're referring to is known as Pulse Wave Velocity. Velocity becomes higher the older you get because your arteries lose their elasticity.
Equations can be found on the link above.
-Mike
RE: velocity equation for pulsation blood flow
I dont know if this email address will reach him john.reizes@uts.edu.au
RE: velocity equation for pulsation blood flow
http://www.rwc.uc.edu/koehler/biophys/3d.html
http://www.rwc.uc.edu/koehler/biophys/3e.html
Interesting site,
h
"We have a leadership style that is too directive and doesn't listen sufficiently well. The top of the organisation doesn't listen sufficiently to what the bottom is saying." Tony Hayward CEO BP
http://www.youtube.com/watch?v=hpiIWMWWVco
"Being GREEN isn't easy." Kermit
http://virtualpipeline.spaces.liv