Investigation of difference schemes on method of lines


Tarhan T., Selcuk N.

PROGRESS IN COMPUTATIONAL FLUID DYNAMICS, cilt.6, ss.447-458, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 6 Konu: 8
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1504/pcfd.2006.011318
  • Dergi Adı: PROGRESS IN COMPUTATIONAL FLUID DYNAMICS
  • Sayfa Sayıları: ss.447-458

Özet

A second-order high-resolution Total Variation Diminishing (TVD) scheme based on Lagrange interpolation polynomial was proposed for the spatial discretisation of convective terms in strongly convected problems with non-uniform grid topologies. Performances of classical and TVD-based Finite Difference (FD) schemes, higher-order Lagrange interpolation polynomial-based schemes and the proposed scheme were investigated on the Method of Lines (MOL) solution of two test problems, a simple one-dimensional convective flow and a two-dimensional unsteady laminar diffusion flame. The proposed scheme produced accurate results without spurious oscillations and numerical diffusion encountered in the classical schemes, and hence, was found to be a successful scheme applicable to strongly convective flow problems with non-uniform grid resolution. The proposed algorithm can be readily incorporated into existing codes based not only on MOL but also on other numerical solution techniques.