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Treatment of branch cut lines in the computation of incompressible flows with C-grids

  • C. P. Mellen
  • K. Srinivas
3. Numerical Methods for Aerodynamic Design c) Boundary Conditions
Part of the Lecture Notes in Physics book series (LNP, volume 453)

Abstract

It is well recognised that C-grids are ideally suited for computing flows about bodies with a rounded leading edge like aerofoils. A branch cut line is an essential feature of such a grid and is usually treated as one of the boundaries. However, when one computes an incompressible flow using a pressure correction method, the presence of such a feature can be problematic in achieving a stable convergence. This paper describes a novel way of handling the branch cut line which ensures convergence of solution when using SIMPLEC type pressure correction procedures.

Keywords

Mass Flux Incompressible Flow Pressure Correction Internal Iteration Cell Face 
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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References

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    Rodi W., Majumdar S. and Schonung B., ‘Finite Volume Methods for Two-Dimensional Incompressible Flows With Complex Boundaries', Computer Methods in Applied Mechanics and Engineering, 75, pp 369–392, (1989).CrossRefGoogle Scholar
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    Van Doormal J.P. and Raithby G.D., ‘Enhancements of the SIMPLE Method for Predicting Incompressible Fluid Flows', Numer. Heat Transfer, 7, pp 147–163, (1984).Google Scholar
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    Zhu J., ‘FAST-2D: A Computer Program for Numerical Simulation of Two Dimensional Incompressible Flows with Complex Boundaries', Report No. 690, Institute for Hydromechanics, University of Karlsruhe, (1991).Google Scholar
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    Gregory N. and O'Reilly C.L., ‘Low Speed Aerodynamic Characteristics of NACA 0012 Aerofoil Section, Including the Effects of Upper Surface Roughness Simulation Hoarfrost', National Physical Laboratory, Teddington, England, Aero Rept. 1308, (1970).Google Scholar

Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • C. P. Mellen
    • 1
  • K. Srinivas
    • 1
  1. 1.University of SydneyN.S.W.Australia

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