Dumont K, Stijnen J M A, Vierendeels J, van de Vosse F N, Verdonck P R
IBiTech, Institute of Biomedical Technology, Hydraulics Laboratory Ghent University Gent Belgium.
Comput Methods Biomech Biomed Engin. 2004 Jun;7(3):139-46. doi: 10.1080/10255840410001715222.
Simulations of coupled problems such as fluid-structure interaction (FSI) are becoming more and more important for engineering purposes. This is particularly true when modeling the aortic valve, where the FSI between the blood and the valve determines the valve movement and the valvular hemodynamics. Nevertheless only a few studies are focusing on the opening and closing behavior during the ejection phase (systole). In this paper, we present the validation of a FSI model using the dynamic mesh method of Fluent for the two-dimensional (2D) simulation of mechanical heart valves during the ejection phase of the cardiac cycle. The FSI model is successfully validated by comparing simulation results to experimental data obtained from in vitro studies using a CCD camera.
诸如流固耦合（FSI）等耦合问题的模拟对于工程目的而言变得越来越重要。在对主动脉瓣进行建模时尤其如此，在主动脉瓣中，血液与瓣膜之间的流固耦合决定了瓣膜运动和瓣膜血液动力学。然而，只有少数研究关注射血期（收缩期）的开闭行为。在本文中，我们展示了使用Fluent的动态网格方法对FSI模型进行验证，以用于心动周期射血期二维（2D）机械心脏瓣膜的模拟。通过将模拟结果与使用CCD相机从体外研究获得的实验数据进行比较，成功验证了FSI模型。
