Large-eddy simulation of a horizontal microjet in backward-facing step flow

H. Kanchi, K. Russell, F. Mashayek, P. F. Fischer

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

Abstract

Large-eddy simulation (LES) is used to study the flow over a backward-facing step interacting with a periodic array of streamwise microjets emanating from the step face. Averaged streamwise velocity profiles are in good agreement with experimental data. A well defined turbulent inlet profile for the microjet is found to be important to obtain correct streamwise normal fluctuations near the step. Relavively low flow jets, entering at a 45° angle to the step face, are shown to change the primary flow field and generate more shear compared to flow without the microjets.

Original languageEnglish (US)
Title of host publication9th Annual International Energy Conversion Engineering Conference, IECEC 2011
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101571
DOIs
StatePublished - 2011
Externally publishedYes
Event9th Annual International Energy Conversion Engineering Conference, IECEC 2011 - San Diego, CA, United States
Duration: Jul 31 2011Aug 3 2011

Publication series

Name9th Annual International Energy Conversion Engineering Conference, IECEC 2011

Other

Other9th Annual International Energy Conversion Engineering Conference, IECEC 2011
CountryUnited States
CitySan Diego, CA
Period7/31/118/3/11

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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    Kanchi, H., Russell, K., Mashayek, F., & Fischer, P. F. (2011). Large-eddy simulation of a horizontal microjet in backward-facing step flow. In 9th Annual International Energy Conversion Engineering Conference, IECEC 2011 (9th Annual International Energy Conversion Engineering Conference, IECEC 2011). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2011-5743