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Modeling of nonreacting and reacting turbulent spray jets using a fully stochastic separated flow approach

De, Santanu ; Lakshmisha, K.N ; Bilger, Robert W

Combustion and Flame, 2011, Vol.158(10), pp.1992-2008 [Periódico revisado por pares]

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  • Título:
    Modeling of nonreacting and reacting turbulent spray jets using a fully stochastic separated flow approach
  • Autor: De, Santanu ; Lakshmisha, K.N ; Bilger, Robert W
  • Assuntos: Spray ; Turbulence ; Combustion ; Mixture Fraction ; Dispersion ; Engineering ; Chemistry
  • É parte de: Combustion and Flame, 2011, Vol.158(10), pp.1992-2008
  • Descrição: Numerical modeling of several turbulent nonreacting and reacting spray jets is carried out using a fully stochastic separated flow (FSSF) approach. As is widely used, the carrier-phase is considered in an Eulerian framework, while the dispersed phase is tracked in a Lagrangian framework following the stochastic separated flow (SSF) model. Various interactions between the two phases are taken into account by means of two-way coupling. Spray evaporation is described using a thermal model with an infinite conductivity in the liquid phase. The gas-phase turbulence terms are closed using the – model. A novel mixture fraction based approach is used to stochastically model the fluctuating temperature and composition in the gas phase and these are then used to refine the estimates of the heat and mass transfer rates between the droplets and the surrounding gas-phase. In classical SSF (CSSF) methods, stochastic fluctuations of only the gas-phase...
  • Idioma: Inglês

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