Computational flow analysis with boundary layer and contact representation: II. Heart valve flow with leaflet contact
Computational flow analysis with boundary layer and contact representation: II. Heart valve flow with leaflet contact
复制标题
边界层和接触表示的计算流分析:II。
DOI:
10.1093/jom/ufac013
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发表时间:
2022
影响因子:
1.7
通讯作者:
T.E. Tezduyar
中科院分区:
文献类型:
--
作者:
T. Terahara;T. Kuraishi;K. Takizawa;T.E. Tezduyar
In this second part of a two-part article, we provide an overview of the heart valve flow analyses conducted with boundary layer and contact representation, made possible with the space–time (ST) computational methods described in the first part. With these ST methods, we are able to represent the boundary layers near moving solid surfaces, including the valve leaflet surfaces, with the accuracy one gets from moving-mesh methods and without the need for leaving a mesh protection gap between the surfaces coming into contact. The challenge of representing the contact between the leaflets without giving up on high-resolution flow representation near the leaflet surfaces has been overcome. The other challenges that have been overcome include the complexities of a near-actual valve geometry, having in the computational model a left ventricle with an anatomically realistic motion and an aorta from CT scans and maintaining the flow stability at the inflow of the ventricle-valve-aorta sequence, where we have a traction boundary condition during part of the cardiac cycle.
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影响因子:
1.7
作者:
T. Kuraishi;T. Terahara;K. Takizawa;T.E. Tezduyar
通讯作者:
T.E. Tezduyar
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
貴島晴彦;小林真紀;山本祥太;田中將貴;橋本洋章;栁澤琢史;押野 悟;谷 直樹;関谷研人,大村吉幸,國吉康夫;Kenji Takizawa
通讯作者:
Kenji Takizawa
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
近藤尚己;Kenji Takizawa
通讯作者:
Kenji Takizawa
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
Naoya Aihara;Hideaki Araki;Kunihiko Tanaka;Takashi Kuraishi
通讯作者:
Takashi Kuraishi
影响因子:
4.1
作者:
K. Takizawa;T. Tezduyar;Hiroaki Uchikawa;Takuya Terahara;Takafumi Sasaki;Ken Shiozaki;Ayaka Yoshida;Kenji Komiya;G. Inoue
通讯作者:
G. Inoue