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Micro and Macro Mixing pp 205–226Cite as

Mixing Analysis and Optimization in Jet Mixer Systems by Means of Large Eddy Simulation

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Part of the book series: Heat and Mass Transfer ((HMT))

Abstract

To achieve the analysis, control and optimization of mixing processes by means of Large Eddy Simulation (LES) technique, an advanced subgrid scale (SGS) scalar model package for the description of turbulent mixing in gaseous and liquid flows is developed and validated. This aims to strongly improve the prediction accuracy of the mixing field quantities prior to any mixing modification studies. Both non-reacting and reacting systems are considered. To cover different reaction regimes, the mixing processes with chemical reaction in jet mixer systems under investigation are described in terms of mixture fraction and two reaction progress variables. To assess the accuracy of the SGS model package and focussed on the high Schmidt-number phenomena, the results of LES are compared with experimental data and other previous simulation results for both a non-reacting jet in channel flow configuration and a confined impinging jets reactor (CIJR) featuring a parallel reaction system. The mixing and reaction processes are analyzed. Especially for the CIJR, the influence of operating conditions (active modification) on mixing properties is evaluated and a quality of measure, that is a prerequisite for mixing control and optimization in turbulent reacting flows by means of passive modification, is highlighted.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Institute for Energy and Powerplant Technology, Technical University Darmstadt, Petersenstraße 30, D-64287, Darmstadt, Germany

    Pradeep Pantangi & Amsini Sadiki

  2. 701 Group, Dalian Institute of Chemical Physics Chinese Academy of Sciences, 457 Zhongshan Road, 116023, Dalian, China

    Ying Huai

Authors
  1. Pradeep Pantangi
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  2. Ying Huai
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  3. Amsini Sadiki
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Editor information

Editors and Affiliations

  1. Inst. Technische Chemie und Polymerchemie, Universität Karlsruhe, Kaiserstr. 12, 76131, Karlsruhe, Germany

    Henning Bockhorn

  2. Inst. Mehrphasenprozesse, Universität Hannover, Callinstr. 36, 30167, Hannover, Germany

    Dieter Mewes

  3. LS für Feststoff- und Grenzflächenverfahrenstechnik, Universität Erlangen-Nürnberg, Cauerstr. 4, 91058, Erlangen, Germany

    Wolfgang Peukert

  4. Fak. Naturwissenschaften FG Technische Chemie, Universität Paderborn, Warburger Str. 100, 33098, Paderborn, Germany

    Hans-Joachim Warnecke

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Pantangi, P., Huai, Y., Sadiki, A. (2010). Mixing Analysis and Optimization in Jet Mixer Systems by Means of Large Eddy Simulation. In: Bockhorn, H., Mewes, D., Peukert, W., Warnecke, HJ. (eds) Micro and Macro Mixing. Heat and Mass Transfer. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04549-3_12

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  • DOI: https://doi.org/10.1007/978-3-642-04549-3_12

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-04548-6

  • Online ISBN: 978-3-642-04549-3

  • eBook Packages: EngineeringEngineering (R0)

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