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Flow Computations Using Embedded Boundary Conditions on Block Structured Cartesian Grid

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Part of the Lecture Notes in Computational Science and Engineering book series (LNCSE,volume 74)

Abstract

Computational Fluid Dynamics (CFD) has been increasingly relied on as an important tool for the aerodynamic design. However, mesh generation for 3D complex geometries is still the most time-consuming task in CFD. Recently, Cartesian grid methods have become popular because of their advantages of fast, robust, and automatic grid generation. Authors proposed a new approach based on a block-structured Cartesian grid approach, named Building-Cube Method (BCM, [5]). This method is aimed for large-scale, high-resolution computations of flows. In the original BCM, however, the wall boundary is defined by a staircase representation to keep the simplicity of the algorithm. Therefore, to resolve boundary layers, vast amounts of grid points are required especially for high-Reynolds number flows of practial applications. In this paper, a new embedded boundary treatment suitable for high-Reynolds viscous flows on BCM is proposed. The scalability performance on cluster comput ers is also investigated with this method.

Keywords

  • Computational Fluid Dynamics
  • Streamwise Velocity
  • Cartesian Grid
  • Cartesian Mesh
  • Body Force Term

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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  • DOI: 10.1007/978-3-642-14438-7_14
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Correspondence to T. Kamatsuch .

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Kamatsuch, T., Fukushige, T., Nakahashi, K. (2010). Flow Computations Using Embedded Boundary Conditions on Block Structured Cartesian Grid. In: Tromeur-Dervout, D., Brenner, G., Emerson, D., Erhel, J. (eds) Parallel Computational Fluid Dynamics 2008. Lecture Notes in Computational Science and Engineering, vol 74. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-14438-7_14

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