Numerical investigations of heat transfer mechanisms in the forced laminar wall jet

Jürgen Seidel, Hermann F. Fasel

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

The effect of high-amplitude forcing on a laminar wall jet over a heated flat plate is analysed. Highly accurate direct numerical simulations (DNS) are used to investigate the dominant transport mechanisms. When forcing is applied, the skin friction is reduced markedly and the wall heat transfer is increased. Detailed examination of the unsteady flow field showed that the concepts of eddy viscosity and eddy thermal diffusivity, usually applied to turbulent flows, can be applied to the analysis of unsteady laminar flows to explain the effect of highly unsteady phenomena.

Original languageEnglish (US)
Pages (from-to)191-215
Number of pages25
JournalJournal of Fluid Mechanics
Volume442
DOIs
StatePublished - Sep 10 2001

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Numerical investigations of heat transfer mechanisms in the forced laminar wall jet'. Together they form a unique fingerprint.

  • Cite this