Immersogeometric cardiovascular fluid-structure interaction analysis with divergence-conforming B-splines

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• 作者：David Kamensky^a ; ^{kamensky@ices.utexas.edu} ; Ming-Chen Hsu^b ; Yue Yu^c ; John A. Evans^d ; Michael S. Sacks^a ; Thomas J.R. Hughes^a
• 关键词：Fluid&ndash ; structure interaction ; Bioprosthetic heart valve ; Immersogeometric analysis ; Isogeometric analysis ; Divergence-conforming B-splines ; Immersed boundary method
• 刊名：Computer Methods in Applied Mechanics and Engineering
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：314
• 期：Complete
• 页码：408-472
• 全文大小：6682 K
• 卷排序：314

文摘

Div-conforming B-splines improve immersed fluid–structure interaction (FSI) analysis. Strong mass conservation prevents spurious non-physical leakage through barriers. Semi-implicit time integration is shown to converge a priori for a model problem. Div-conforming immersogeometric FSI analysis is practical for heart valve analysis. FSI simulations reproduce qualitative features of in vitro experiments.