Thermal & Flow Field Analysis of Turbulent Swirling Jet Impingement Using Large Eddy Simulation

Naseem Uddin (), Sven Olaf Neumann, Peter Lammers and Bernhard Weigand
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Naseem Uddin: Universität Stuttgart, Institut für Thermodynamik der Luft- und Raumfahrt
Sven Olaf Neumann: Universität Stuttgart, Institut für Thermodynamik der Luft- und Raumfahrt
Peter Lammers: Universität Stuttgart, Höchstleistungsrechenzentrum (HLRS)
Bernhard Weigand: Universität Stuttgart, Institut für Thermodynamik der Luft- und Raumfahrt

A chapter in High Performance Computing in Science and Engineering '08, 2009, pp 301-315 from Springer

Abstract: Summary Swirling jets are used in a variety of engineering applications like in chemical reactors, cyclone separators, 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 swirling and non-swirling impinging jets are computed using Large Eddy Simulation (LES). For the investigation of non-swirling jets, the ERCOFTAC recommended test case of an impinging jet at a Reynolds number of 23000 is simulated first. The agreement between experimental data and simulation gives encouragement for further investigation of complex flow of swirling jets impingement. Therefore, the swirling jets with Reynolds numbers of 21000 & 23000 and four different swirl numbers are investigated via LES. The results are compared with experimental data. The effect of inflow conditions and inlet temperature is investigated. The correlation between the heat transfer mechanism, flow kinematics and turbulence quantities is investigated. The numerical data computed within this investigation serve additionally for benchmarking results based on the solution of Reynolds Averaged Navier-Stokes Equations in complex flow configurations at even higher Reynolds numbers. This comparison is not shown here, but could be found at [ITLR].

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-88303-6_22

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DOI: 10.1007/978-3-540-88303-6_22

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