Numerical investigation of turbulent wall jets

S. Wernz, J. Seidel, H. F. Fasel

Research output: Contribution to conferencePaper

Abstract

The evolution of large scale, coherent structures in turbulent wall jets is investigated numerically using our Flow Simulation Methodology (FSM). Previous experimental research has shown that these structures significantly change the mean Reynolds shear stress distribution and also the skin friction. The combination of the coherent motion in the shear layer region of the wall jet and the turbulent boundary layer underneath pose a unique challenge for turbulent simulations. We use FSM to investigate the effect of these large coherent structures, both in the unsteady Reynolds Averaged Navier-Stokes (URANS) limit and in the Large Eddy Simulations (LES) range. In addition, Direct Numerical Simulations (DNS) will be used to show the emergence of large structures with strong spanwise coherence during wall jet transition. The computational results are scrutinized to investigate the applicability and performance of FSM for this complex turbulent flow.

Original languageEnglish (US)
DOIs
StatePublished - 2002
Event40th AIAA Aerospace Sciences Meeting and Exhibit 2002 - Reno, NV, United States
Duration: Jan 14 2002Jan 17 2002

Other

Other40th AIAA Aerospace Sciences Meeting and Exhibit 2002
CountryUnited States
CityReno, NV
Period1/14/021/17/02

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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    Wernz, S., Seidel, J., & Fasel, H. F. (2002). Numerical investigation of turbulent wall jets. Paper presented at 40th AIAA Aerospace Sciences Meeting and Exhibit 2002, Reno, NV, United States. https://doi.org/10.2514/6.2002-589