Assessment of large-eddy simulation of internal separated flow

Marco Hahn, Dimitris Drikakis

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

This paper presents a systematic numerical investigation of different implicit large-eddy simulations (LESs) for massively separated flows. Three numerical schemes, a third-order accurate monotonic upwind scheme for scalar conservation laws (MUSCL) scheme, a fifth-order accurate MUSCL scheme, and a ninth-order accurate weighted essentially non-oscillatory (WENO) method, are tested in the context of separation from a gently curved surface. The case considered here is a simple wall-bounded flow that consists of a channel with a hill-type curvature on the lower wall. The separation and reattachment locations, velocity, and Reynolds stress profiles are presented and compared against solutions from classical LES simulations.
Original languageEnglish
Article number071201
Number of pages15
JournalJournal of Fluids Engineering
Volume131
Issue number7
DOIs
Publication statusPublished - 1 Jun 2009

Keywords

  • curved surfaces
  • essentially non-oscillatory
  • massively separated flow
  • numerical investigations
  • numerical scheme
  • Reynolds stress
  • scalar conservation laws
  • third-order
  • up-wind scheme
  • wall bounded flows

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