An efficient parallel/unstructured-multigrid preconditioned implicit method for simulating 3D unsteady compressible flows with moving objects

  • Authors:

  • X. Lv;Y. Zhao;X. Y. Huang;G. H. Xia;Z. J. Wang

  • Affiliations:

  • School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore;School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore;School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore;School of Mechanical and Aerospace Engineering, College of Engineering, Nanyang Technological University, Singapore, Singapore;Department of Aerospace Engineering, College of Engineering, Iowa State University, Ames, IA

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2006

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Abstract

This paper presents the development and validation of a new parallel unstructured multi-grid preconditioned implicit method for the simulation of three-dimensional (3D) unsteady compressible flows using a so-called immersed membrane method (IMM) [G.H. Xia, Y. Zhao, J.H. Yeo, An immersed membrane method for simulation of flui-structure interaction in bio-fluid flows, in: 1st International BioEngineering Conference (IBEC 2004), 08-10 September 2004]. The novel feature of the method presented is that it employs a unique combination of a parallel multi-grid scheme with low-Mach-number preconditioning and the IMM so that 3D unsteady low-Mach-number flows with arbitrarily moving objects can be efficiently simulated.