The fluid dynamic equations are discretized by a high-order spectral volume (SV) or
a high-order spectral-difference (SD) method on unstructured grids. We solve the steady
state equations by advancing in time using a backward Euler (BE) scheme for the steady
state solutions and a second-order backward formulae (BDF2) for the unsteady flows.
To avoid the inversion of a large matrix we approximate BE by an implicit lower-upper
symmetric Gauss-Seidel (LU-SGS) algorithm. The implicit method addresses the stiffness
in the discrete Navier-Stokes equations associated with stretched meshes. The implicit
LU-SGS scheme is used to solve the two (2 -D) and three dimensional (3 -D) compressible
laminar Navier-Stokes equations.
Original languageEnglish
Title of host publicationEuropean Research Community On flow, Turbulence and Combustion,
Publication statusPublished - 5 Dec 2008
EventFinds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet - Stockholm, Sweden
Duration: 21 Sep 200925 Sep 2009

Conference

ConferenceFinds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet
CountrySweden
CityStockholm
Period21/09/0925/09/09

    Research areas

  • Navier-Stokes, High-order Methods, Implicit LU-SGS algorithm, Von Neumann analysis

ID: 1742909