TY - GEN
T1 - Mechanics of blood flow in arteriolar and venular bifurcations
AU - Popel, Aleksander S.
AU - Enden, Giora
AU - Ong, Joseph
PY - 1992
Y1 - 1992
N2 - Results of ongoing theoretical computational studies of blood flow in arteriolar and venular bifurcations are presented. In arteriolar bifurcations, the blood is modeled as a two-phase continuum, with a central core that is a concentrated suspension of red blood cells and with a layer of plasma adjacent to the vessel wall; the fluids are assumed to be Newtonian with different constant viscosities. The evolution of the two phases as the blood flows through the arteriolar bifurcation is studied. In venular bifurcations, two converging streams are modeled as Quemada-type thixotropic fluids with different hematocrits. The streams are followed through the bifurcation as they fold and form a strongly asymmetric velocity profile at the outlet cross section. These models yield predictions of the hematocrit and the velocity distribution downstream from arteriolar and venular bifurcations. The implications of these results for blood flow in microvascular networks are discussed.
AB - Results of ongoing theoretical computational studies of blood flow in arteriolar and venular bifurcations are presented. In arteriolar bifurcations, the blood is modeled as a two-phase continuum, with a central core that is a concentrated suspension of red blood cells and with a layer of plasma adjacent to the vessel wall; the fluids are assumed to be Newtonian with different constant viscosities. The evolution of the two phases as the blood flows through the arteriolar bifurcation is studied. In venular bifurcations, two converging streams are modeled as Quemada-type thixotropic fluids with different hematocrits. The streams are followed through the bifurcation as they fold and form a strongly asymmetric velocity profile at the outlet cross section. These models yield predictions of the hematocrit and the velocity distribution downstream from arteriolar and venular bifurcations. The implications of these results for blood flow in microvascular networks are discussed.
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M3 - Conference contribution
AN - SCOPUS:0026963383
SN - 0791811115
T3 - American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
SP - 105
EP - 111
BT - Advaces in Biological Heat and Mass Transfer - 1992
PB - Publ by ASME
T2 - Winter Annual Meeting of the American Society of Mechanical Engineers
Y2 - 8 November 1992 through 13 November 1992
ER -