This paper builds on a recently developed immersogeometric fluid–structure interaction (FSI) methodology for bioprosthetic heart valve (BHV) modeling and simulation. It enhances the proposed framework in the areas of geometry design and constitutive modeling. With these enhancements, BHV FSI simulations may be performed with greater levels of automation, robustness and physical realism. In addition, the paper presents a comparison between FSI analysis and standalone structural dynamics simulation driven by prescribed transvalvular pressure, the latter being a more common modeling choice for this class of problems. The FSI computation achieved better physiological realism in predicting the valve leaflet deformation than its standalone structural dynamics counterpart.

中文翻译：

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使用参数化设计与 T 样条和 Fung 型材料模型的生物假体心脏瓣膜的动态和流体-结构相互作用模拟

本文基于最近开发的用于生物假体心脏瓣膜 (BHV) 建模和模拟的浸入式几何流体-结构相互作用 (FSI) 方法。它增强了几何设计和本构建模领域的拟议框架。通过这些增强功能，BHV FSI 模拟可以以更高水平的自动化、鲁棒性和物理真实性进行。此外，本文还比较了 FSI 分析和由规定的跨瓣压力驱动的独立结构动力学模拟，后者是此类问题更常见的建模选择。FSI 计算在预测瓣叶变形方面比其独立的结构动力学对应物实现了更好的生理真实性。