A Geometry-Adaptive Immersed Boundary-Lattice Boltzmann Method for Modelling Fluid-Structure Interaction Problems

被引：6

作者：

Xu, Lincheng ^{[1
]}

Wang, Li ^{[1
]}

Tian, Fang-Bao ^{[1
]}

Young, John ^{[1
]}

Lai, Joseph C. S. ^{[1
]}

机构：

[1] Univ New South Wales, Sch Engn & Informat Technol, Canberra, ACT 2600, Australia

来源：

IUTAM SYMPOSIUM ON RECENT ADVANCES IN MOVING BOUNDARY PROBLEMS IN MECHANICS | 2019年 / 34卷

基金：

澳大利亚研究理事会;

关键词：

Adaptive mesh; Immersed boundary method; Lattice Boltzmann method; Fluid-structure interaction; DOMAIN/STABILIZED SPACE-TIME; POWER-EXTRACTION EFFICIENCY; DSD/SST METHOD; HEAT-TRANSFER; FLOW; DEFORMATION; SIMULATIONS; COMPUTATION;

D O I：

10.1007/978-3-030-13720-5_14

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The immersed boundary method has been extensively used in many areas. However, there are two typical challenges for modelling fluid-structure problems at moderate and high Reynolds numbers (e.g. 10(3) -10(5)). One is the size of mesh at high Reynolds numbers when the standard immersed boundary method is applied. The other is the numerical instability associated with the partitioned coupling for fluid-structure interaction problems involving small structure-to-fluid mass ratios. To address the challenges, a novel computational framework which combines the lattice Boltzmann method and an improved immersed boundary method based on a dynamic geometry-adaptive Cartesian grid is presented. A few classic validations are conducted to demonstrate the accuracy of the current method.

引用

页码：161 / 171

页数：11

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