TY - JOUR
T1 - Numerical simulation of blood flow through stenosed tube with moving wall
AU - Ishikawa, Takuji
AU - Oshima, Shuzo
AU - Yamane, Ryuichiro
PY - 1997
Y1 - 1997
N2 - It is well known that the fluid dynamics of arterial blood flow play an important role in arterial disease. The periodic blood flow through a stenosed tube with a moving wall is analyzed numerically. The Windkessel model is used to express arterial wall movement. A revised Casson model which is appropriate for numerical simulation is proposed as a constitutive equation of blood. The flow is assumed to be periodic, incompressible and axisymmetric. The influence of wall movement on flow through a stenosed tube is investigated. The flow pattern, separated region and the distributions of pressure and shear stress at the wall are obtained. The results show that the wall movement reduces the strength of vortex downstream of the stenosis and has considerable influence on the physical quantity of flow at the wall in one period. Therefore, it is concluded that the influence of wall movement should be taken into consideration for blood flow through a stenosed tube.
AB - It is well known that the fluid dynamics of arterial blood flow play an important role in arterial disease. The periodic blood flow through a stenosed tube with a moving wall is analyzed numerically. The Windkessel model is used to express arterial wall movement. A revised Casson model which is appropriate for numerical simulation is proposed as a constitutive equation of blood. The flow is assumed to be periodic, incompressible and axisymmetric. The influence of wall movement on flow through a stenosed tube is investigated. The flow pattern, separated region and the distributions of pressure and shear stress at the wall are obtained. The results show that the wall movement reduces the strength of vortex downstream of the stenosis and has considerable influence on the physical quantity of flow at the wall in one period. Therefore, it is concluded that the influence of wall movement should be taken into consideration for blood flow through a stenosed tube.
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U2 - 10.1299/kikaib.63.789
DO - 10.1299/kikaib.63.789
M3 - Article
AN - SCOPUS:0031094380
SN - 0387-5016
VL - 63
SP - 789
EP - 797
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 607
ER -