Effect of branchings on blood flow in the system of human coronary arteries.
In this work, we investigate the behavior of the pulsatile blood flow in the system of human coronary arteries. Blood is modeled as an incompressible non-Newtonian fluid. The transient phenomena of blood flow through the coronary system are simulated by solving the three dimensional unsteady state Navier-Stokes equations and continuity equation. Distributions of velocity, pressure and wall shear stresses are determined in the system under pulsatile conditions on the boundaries. Effect of branching vessel on the flow problem is investigated. The numerical results show that blood pressure in the system with branching vessels of coronary arteries is lower than the one in the system with no branch. The magnitude of wall shear stresses rises at the bifurcation.
Department of Mathematics, Faculty of Science, Mahidol University, Bangkok 10400, Thailand. scbww@mahidol.ac.th
Benchawan
B
Wiwatanapataphee
Yong Hong
YH
Wu
Thanongchai
T
Siriapisith
Buraskorn
B
Nuntadilok
D001794:Blood Pressure / Q000502:physiology*; D003331:Coronary Vessels / Q000502:physiology*; D020342:Finite Element Analysis; D006801:Humans; D008955:Models, Cardiovascular; D011673:Pulsatile Flow / Q000502:physiology*