TY - JOUR
T1 - Wall shear stress and initiation of aneurysm around anterior communicating artery in pulsating flow
AU - Yamaguchi, Ryuhei
AU - Kudo, Susumu
AU - Yamanobe, Hiroyuki
AU - Nakashima, Mikio
AU - Sugihara, Ryota
AU - Ujiie, Hiroshi
PY - 2000/12
Y1 - 2000/12
N2 - In the present paper, the velocity profile, the wall shear stress and its gradient at the apex of the anterior communicating artery are described in pulsating flow. The anterior communicating artery composing the circle of Willis is one of the predilection sites where the cerebral aneurysm occurs frequently. The flow field around the anterior communicating artery is simulated by two confluent tubes joining at the angle of 60 degrees, two parallel bifurcating tubes, and the junctional tube, bypass, connecting four tubes. The velocity profile is clarified around the apex where the cerebral aneurysm is apt to initiate. In particular, the gradient of wall shear stress around the apex at one confluent tube with much flow rate is estimated, and the relation between the gradient of wall shear stress and the initiation of aneurysm is discussed physiologically.
AB - In the present paper, the velocity profile, the wall shear stress and its gradient at the apex of the anterior communicating artery are described in pulsating flow. The anterior communicating artery composing the circle of Willis is one of the predilection sites where the cerebral aneurysm occurs frequently. The flow field around the anterior communicating artery is simulated by two confluent tubes joining at the angle of 60 degrees, two parallel bifurcating tubes, and the junctional tube, bypass, connecting four tubes. The velocity profile is clarified around the apex where the cerebral aneurysm is apt to initiate. In particular, the gradient of wall shear stress around the apex at one confluent tube with much flow rate is estimated, and the relation between the gradient of wall shear stress and the initiation of aneurysm is discussed physiologically.
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U2 - 10.1299/kikaib.66.652_3124
DO - 10.1299/kikaib.66.652_3124
M3 - Article
AN - SCOPUS:71249112337
SN - 0387-5016
VL - 66
SP - 3124
EP - 3130
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 - 652
ER -