Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Turbulent flow in a ribbed channel: Flow structures in the vicinity of a rib

Författare

Summary, in English

PIV measurements are performed in a channel with periodic ribs on one wall. The emphasis of this study is to investigate the flow

structures in the vicinity of a rib in terms of mean velocities, Reynolds stresses, probability density functions (PDF), and two-point

correlations. The PDF distribution of u0 is bimodal in the separated shear layer downstream of the rib. The maximum Reynolds

shear stresses occur at the leading edge of the rib. Based on quadrant analysis, it is found that ejection motions make a dominant

contribution to the Reynolds shear stress in this region. Moreover, topology-based visualization is applied to the separation bubble

upstream of the rib. Salient critical points and limit cycles are extracted, which gives clues to the physical processes occurring in

the flow.

Publiceringsår

2010

Språk

Engelska

Sidor

165-176

Publikation/Tidskrift/Serie

Experimental Thermal and Fluid Science

Volym

34

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Energy Engineering

Nyckelord

  • Ribbed channel
  • Flow separation
  • PIV
  • Topology

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1879-2286