Multigrid solution of Euler equations using high-resolution NVD differencing scheme for unstructured meshes

Khai Ching Ng, Mohd Zamri Yusoff, Eddie Yin Kwee Ng

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

High-speed compressible flows in a nozzle and over an airfoil have been computed by solving the Euler equations using the GAMMA differencing scheme for spatial discretisation on unstructured grid. This high-resolution technique originally developed in a segregated algorithm has now been modified for the present coupled solver by introducing a non-linear blending factor to enhance its convergence property while preserving the Total Variation Diminishing (TVD) criterion. The efficiencies of the GAMMA scheme and its variant have been augmented with a novel agglomeration multigrid scheme to accelerate the convergence to steady state using the multi-stage Runge-Kutta time-marching technique.

Original languageEnglish
Pages (from-to)389-401
Number of pages13
JournalProgress in Computational Fluid Dynamics
Volume6
Issue number7
DOIs
Publication statusPublished - 20 Dec 2006

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Computer Science Applications

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