logo

SCIENTIA SINICA Physica, Mechanica & Astronomica, Volume 48 , Issue 9 : 094703(2018) https://doi.org/10.1360/SSPMA2018-00191

Recent progress of immersed boundary method and its applications in compressible fluid flow

More info
  • ReceivedMay 18, 2018
  • AcceptedJun 1, 2018
  • PublishedAug 2, 2018
PACS numbers

Abstract

Fluid-structure interaction problems are ubiquitous in nature and engineering applications. Typical examples include leaves waving, flag flapping, insect flight and tail flutter of high speed aircrafts. Accompanied with the development of high performance computers, numerical simulation has been applied to more and more areas and taken as an effective method for fluid–structure interaction problems. The immersed boundary method, first developed by Peskin and based on Cartesian mesh, is one of the methods for handling fluid-structure interaction problems involving complex geometries and large deformations. In this method, the Lagrangian force is spread onto the fluid nodes around the fluid-solid interface, as a forcing source of the Navier-Stokes equations to achieve the boundary conditions at the interface. In the immersed boundary method, it is not necessary to generate body conformal mesh. In addition, mesh movement and regeneration are avoided. Therefore, the efficiency could be higher compared to those methods based on body conformal mesh such as the arbitrary Lagrangian-Eulerian method and the deforming-spatial-domain/stabilized space-time method. Due to its advantages associated mesh generation, the immersed boundary method has recently been extended into compressible fluid-structure interaction problems, and is expected to have more and more significant impact in aeroelasticity and fluid-structure-sound interaction problems especially those involving complex geometries and large deformations. In this review article, we review the basic principle of the immersed boundary method and its recent progress. The applications of the immersed boundary method in compressible flows will be introduced by presenting a few benchmark cases and typical applications, including a flexible plate interacting with shock waves in a shock tube, a flexible plate in a hypersonic flow, acoustics in human phonation, acoustics scattered by a stationary cylinder, and sound generated by a rotating cylinder and a flapping wing in a uniform flow.


Funded by

Australian Research Council Discovery Early Career Researcher Award(DE160101098)

Copyright 2020  CHINA SCIENCE PUBLISHING & MEDIA LTD.  中国科技出版传媒股份有限公司  版权所有

京ICP备14028887号-23       京公网安备11010102003388号