Numerical investigation of turbulent wall jets

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

doi:10.2514/6.2002-589

Numerical investigation of turbulent wall jets

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

Aerospace and Mechanical Engineering

Research output: Contribution to conference › Paper › peer-review

6 Scopus citations

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 language	English (US)
DOIs	https://doi.org/10.2514/6.2002-589
State	Published - 2002
Event	40th AIAA Aerospace Sciences Meeting and Exhibit 2002 - Reno, NV, United States Duration: Jan 14 2002 → Jan 17 2002

Other

Other	40th AIAA Aerospace Sciences Meeting and Exhibit 2002
Country/Territory	United States
City	Reno, NV
Period	1/14/02 → 1/17/02

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering

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10.2514/6.2002-589

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title = "Numerical investigation of turbulent wall jets",

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.",

author = "S. Wernz and J. Seidel and Fasel, {H. F.}",

year = "2002",

doi = "10.2514/6.2002-589",

language = "English (US)",

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AU - Wernz, S.

AU - Seidel, J.

AU - Fasel, H. F.

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AB - 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.

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T2 - 40th AIAA Aerospace Sciences Meeting and Exhibit 2002

Y2 - 14 January 2002 through 17 January 2002

ER -

Numerical investigation of turbulent wall jets

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