Numerical investigation of forced turbulent wall jets

J. Seidei, Hermann F Fasel

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

Abstract

The effect of time periodic forcing of turbulent wall jets is investigated numerically using our new Flow Simulation Methodology (FSM). Previous experimental research has shown that periodic excitation of wall jets increases their effectiveness for separation control. To investigate the effect of forcing on the large coherent structures, a steady mean flow is computed first using a Reynolds Averaged Navier-Stokes (RANS) approach. The response of this mean flow to periodic forcing is then investigated using FSM in the limit of unsteady RANS. Our results indicate that with periodic forcing, significant changes in the mean Reynolds shear stress distribution and also the skin friction are observed. The unsteady computational results are scrutinized to investigate how the coherent structures interact with the turbulent mean flow and what role they play in the change of the mean flow profiles.

Original languageEnglish (US)
Title of host publicationFluids 2000 Conference and Exhibit
StatePublished - 2000
EventFluids 2000 Conference and Exhibit - Denver, CO, United States
Duration: Jun 19 2000Jun 22 2000

Other

OtherFluids 2000 Conference and Exhibit
CountryUnited States
CityDenver, CO
Period6/19/006/22/00

Fingerprint

Flow simulation
Skin friction
Stress concentration
Shear stress

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Mechanical Engineering

Cite this

Seidei, J., & Fasel, H. F. (2000). Numerical investigation of forced turbulent wall jets. In Fluids 2000 Conference and Exhibit

Numerical investigation of forced turbulent wall jets. / Seidei, J.; Fasel, Hermann F.

Fluids 2000 Conference and Exhibit. 2000.

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

Seidei, J & Fasel, HF 2000, Numerical investigation of forced turbulent wall jets. in Fluids 2000 Conference and Exhibit. Fluids 2000 Conference and Exhibit, Denver, CO, United States, 6/19/00.
Seidei J, Fasel HF. Numerical investigation of forced turbulent wall jets. In Fluids 2000 Conference and Exhibit. 2000
Seidei, J. ; Fasel, Hermann F. / Numerical investigation of forced turbulent wall jets. Fluids 2000 Conference and Exhibit. 2000.
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