论文标题
适用于液压材料的周期性流动的时空框架
A space-time framework for periodic flows with applications to hydrofoils
论文作者
论文摘要
在本文中，我们提出了一个时空框架，以计算周期性流量。我们采用等几何分析框架来实现空间和时间上的高阶平滑度。使用基于残差的变分多尺度建模和弱边界条件进行离散化，以提高计算域移动边界附近的准确性。我们显示了保护特性，并提出了一种保守的力提取方法。我们将框架应用于重大和俯仰水翼的计算。数值结果在课程网格上显示出非常准确的结果。
In this paper we propose a space-time framework for the computation of periodic flows. We employ the isogeometric analysis framework to achieve higher-order smoothness in both space and time. The discretization is performed using residual-based variational multiscale modelling and weak boundary conditions are adopted to enhance the accuracy near the moving boundaries of the computational domain. We show conservation properties and present a conservative method for force extraction. We apply our framework to the computation of a heaving and pitching hydrofoil. Numerical results display very accurate results on course meshes.
