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Atomization and Sprays

Publication de 12  numéros par an

ISSN Imprimer: 1044-5110

ISSN En ligne: 1936-2684

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Indexed in

A CONSERVATIVE FRAMEWORK FOR PRIMARY ATOMIZATION COMPUTATION AND APPLICATION TO THE STUDY OF NOZZLE AND DENSITY RATIO EFFECTS

Volume 23, Numéro 12, 2013, pp. 1139-1165
DOI: 10.1615/AtomizSpr.2013007243
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RÉSUMÉ

The present work focuses on the application of two recent developments of the volume-of-fluid method to the computational study of primary atomization: a second-order unsplit volume-of-fluid algorithm and a conservative monotonicity preserving discretization of the two-phase Navier-Stokes equations. This novel combination is motivated in the context of primary atomization at arbitrary density ratios. A validation of this framework is first carried in a controlled yet complex numerical experiment, a turbulent two-phase temporal jet. An analysis of the conservation errors and the convergence of the drop-size distribution under grid refinement is provided, and was found to substantiate the ability of the method to resolve small droplets. Finally, a comparison of the performances of a simplified yet realistic injector with the breakup resulting from a fully turbulent cylindrical pipe in similar conditions is provided for varying density ratios (40 and 800). The framework is shown to be able to yield quantitative trends regarding the atomizer performances.

CITÉ PAR
  1. Reddy Rajesh, Banerjee R., GPU accelerated VOF based multiphase flow solver and its application to sprays, Computers & Fluids, 117, 2015. Crossref

  2. Bode Mathis, Falkenstein Tobias, Le Chenadec Vincent, Kang Seongwon, Pitsch Heinz, Arima Toshiyuki, Taniguchi Hiroyoshi, A New Euler/Lagrange Approach for Multiphase Simulations of a Multi-Hole GDI Injector, SAE Technical Paper Series, 1, 2015. Crossref

  3. Bode Mathis, Diewald Felix, Broll David Oliver, Heyse Jan Felix, Le Chenadec Vincent, Pitsch Heinz, Influence of the Injector Geometry on Primary Breakup in Diesel Injector Systems, SAE Technical Paper Series, 1, 2014. Crossref

  4. Luo Kun, Shao Changxiao, Chai Min, Fan Jianren, Level set method for atomization and evaporation simulations, Progress in Energy and Combustion Science, 73, 2019. Crossref

  5. Fikl Alexandru, Le Chenadec Vincent, Sayadi Taraneh, Control and Optimization of Interfacial Flows Using Adjoint-Based Techniques, Fluids, 5, 3, 2020. Crossref

  6. Fröde Fabian, Grenga Temistocle, Le Chenadec Vincent, Bode Mathis, Pitsch Heinz, A three-dimensional cell-based volume-of-fluid method for conservative simulations of primary atomization, Journal of Computational Physics, 465, 2022. Crossref

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