论文标题
用于流体结构相互作用问题的动态网格方法,用于混合晶格Boltzmann方法
A moving-grid approach for fluid-structure interaction problems with hybrid lattice Boltzmann method
论文作者
论文摘要
在本文中,我们提出了一种混合晶格玻尔兹曼方法(HLBM),用于解决流体结构的相互作用问题。所提出的数值方法用于模拟通过粘液静脉流体中浸入的振动薄层诱导的流动。流体在固体上施加的流体动力作用是通过复杂的流体动力功能来描述的,其真实和假想的部分是通过参数分析确定的。通过与文献中其他数值以及实验性工作相比,数值结果得到了验证。提出的混合方法增强了晶格玻尔兹曼方法解决涉及移动几何形状的流体动态问题的能力。
In this paper, we propose a hybrid lattice Boltzmann method (HLBM) for solving fluid-structure interaction problems. The proposed numerical approach is applied to model the flow induced by a vibrating thin lamina submerged in a viscous quiescent fluid. The hydrodynamic force exerted by the fluid on the solid body is described by means of a complex hydrodynamic function, whose real and imaginary parts are determined via parametric analysis. Numerical results are validated by comparison with those from other numerical as well as experimental works available in the literature. The proposed hybrid approach enhances the capability of lattice Boltzmann methods to solve fluid dynamic problems involving moving geometries.