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Grid Sensitivity of LES Heat Transfer Results of a Turbulent Round Impinging Jet

In: High Performance Computing in Science and Engineering '10

Author

Listed:
  • Sven Olaf Neumann

    (Universität Stuttgart, Institut für Thermodynamik der Luft- und Raumfahrt)

  • Naseem Uddin

    (Universität Stuttgart, Institut für Thermodynamik der Luft- und Raumfahrt
    NED University of Engineering and Technology, Mechanical Engineering Department)

  • Bernhard Weigand

    (Universität Stuttgart, Institut für Thermodynamik der Luft- und Raumfahrt)

Abstract

Impinging jets are used in a variety of engineering applications like in chemical reactors, mixing devices, drying and cooling applications. Good quality simulations of this highly complex flow field is a challenging task. In this work, the flow field and heat transfer of turbulent jet impingement is investigated by Large Eddy Simulation (LES). The benchmark case of a turbulent impinging jet with out swirl and excitation, recommended by ERCOFTAC, is simulated on different grids. The jet’s Reynolds number (Re) is 23000 and jet outlet-to-target wall distance (H/D) is 2. The agreement between experimental data and simulation results was improved by grid refinement in the free shear layer region behind the nozzle lip. The correlation between the heat transfer mechanism, flow kinematics and turbulence quantities was investigated.

Suggested Citation

  • Sven Olaf Neumann & Naseem Uddin & Bernhard Weigand, 2011. "Grid Sensitivity of LES Heat Transfer Results of a Turbulent Round Impinging Jet," Springer Books, in: Wolfgang E. Nagel & Dietmar B. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '10, pages 307-325, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-15748-6_24
    DOI: 10.1007/978-3-642-15748-6_24
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