|April 22, 2015, 15:10||
Arterial pulse pressure
Join Date: Feb 2015
Posts: 1Rep Power: 0
I want to check how local geometry of arteries affects the pulse pressure (how fast pressure rises) so I am trying to perform some kind of pressure analysis.
In my simplified model I have two inlet lids and one outlet lid (as letter Y). Two pulse pressures enter separately through inlet lids and converge. I am using rigid walls conditions, pressure function as a inlet boundary conditions (with one pulse being "released" 5 ms later than the other; experimentally obtained data) and constant flow rate as outlet boundary condition.
I have a problem with pulse pressure propagation. Since the rigid walls are assumed should pulse have an infinite speed? I am getting expected data with different lag times... but some people are not convinced.
|April 23, 2015, 05:37||
Filippo Maria Denaro
Join Date: Jul 2010
Posts: 2,692Rep Power: 33
you cannot model arteria by rigid walls... the propagation of the pulse is at different (finite) velocity than convective velocity propagation of blood.
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