Aspect ratio effect on the centerplane pressure and flow structure in a one-sided suddenly expanding duct

George Papadopoulos, M. Volkan Otugen, George C. Vradis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The incompressible turbulent flow over a backward-facing step in a rectangular duct was investigated. The main focus was on the effects of the side walls on the centerplane characteristics of the flow. The Reynolds number based on the step height and oncoming freestream velocity was 26,200 and aspect ratios (step span-to-step height) ranging from 2 to 28 were investigated. For this range of aspect rations, the pressure distributions along the centerline of the step and flat walls were obtained. In addition, streamwise and transverse centerplane velocity distributions were obtained for aspect ratios 2, 4,8,12 and 20 using an x-type, hot-wire probe.

Original languageEnglish (US)
Title of host publicationSeparated Flows - 1993
PublisherPubl by ASME
Pages9-18
Number of pages10
ISBN (Print)0791809579
StatePublished - 1993
EventFluids Engineering Conference - Washington, DC, USA
Duration: Jun 20 1993Jun 24 1993

Publication series

NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Volume149

Other

OtherFluids Engineering Conference
CityWashington, DC, USA
Period6/20/936/24/93

ASJC Scopus subject areas

  • Engineering(all)

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