Computation of Turbulent Evaporating Sprays: Eulerian Versus Lagrangian Approach

Hallmann, M.; Scheurlen, Michael; Wittig, Sigmar

doi:10.1115/1.2812758

Cited by 27 publications

(8 citation statements)

References 12 publications

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“…Hallman et al (1995) focused on the computation of turbulent evaporating sprays using the Eulerian and Lagrangian approaches. Recently, Lee et al (2002) simulated the gas-particle flow in a 45…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Validation of Dilute Gas-Particle Flow Over a Backward-Facing Step

Tian

Yeoh

2005

Aerosol Science and Technology

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The physical characteristics of dilute gas-particle flows over a backward-facing step geometry are investigated. An investigation is performed to assess the performance of two computational approaches-the Lagrangian particle-tracking model and Eulerian two-fluid model-to predict the particle phase flow parameters under the influence of different particle inertia. Particles with corresponding diameters of 1 µm (small-size particles) and 70 µm (large-size particles) are simulated under the flow condition of two Reynolds numbers (based on the step height): Re = 15000 and Re = 64000, for which the model predictions are compared against benchmark experimental measurements. Among the various turbulence models evaluated, the RNG κ-ε and realizable κ-ε models provided better agreement with the experimental data for the range of particles considered. The Eulerian approach used in this study combines an overlapped technique with a particle-wall collision model to better present the particle-wall momentum transfer than traditional Eulerian models. In comparing to the Lagrangian and Eulerian approaches for particle flow predictions, the latter was shown to yield closer agreement with the measured values.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Validation of Dilute Gas-Particle Flow Over a Backward-Facing Step

Tian

Yeoh

2005

Aerosol Science and Technology

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“…The evaporation process of a drop composed of a mixture of hydrocarbons can be divided into three fields for modelling mass and heat transfer (Prommersberger et al, 1999, Aggarwal andPeng, 1994). The most fully developed approaches (model DLM, Diffusion Limit Model) take account of the heterogeneous temperature field in the droplet, of the influence of the drop and the multi-component composition of the hydrocarbon (Hallmann et al, 1995, Li, 1995. Certain models treat drop heating and vaporization simultaneously, while others assume that the droplet warms up initially without evaporating, and that when it reaches a sufficient temperature, it vaporizes (Schmehl et al, 1999).…”

Section: Gas Phasementioning

confidence: 99%

Characterization of a Spray in the Combustion Chamber of a Low Emission Gas Turbine

Descombes¹

2011

Advances in Gas Turbine Technology

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“…The EL approach is the most widely used approach for engineering applications, but it suffers from several disadvantages as described in [5] [6]. This approach is not able to adequately capture mass, momentum and energy inter-phase exchange in regions where the liquid void fraction dominates, i.e.…”

Section: Introductionmentioning

confidence: 99%

Modelling of spray and combustion processes by using the Eulerian multiphase approach and detailed chemical kinetics

Petranović

Edelbauer

Vujanović

et al. 2017

Fuel

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This research deals with computational modelling of non-reactive and reactive turbulent spray processes. The spray process is modelled using the Euler Eulerian multiphase approach together with a size-of-classes model where the discrete phase is considered as continuum and divided into sub-classes. The combustion process is modelled by taking into account chemical kinetics and solving homogeneous gas phase reactions. The combustion model is implemented into a commercial computational fluid dynamics code, and used in combination with previously validated spray sub-models. Several non-reactive cases are modelled by comparing the fuel spatial and temporal development to the available experimental data. The modelled results show excellent agreement for fuel penetration and mixture distributions. Furthermore, the developed method is validated by modelling reactive spray processes within constant volume vessel, and by comparing results to the Engine combustion network experimental data. The vessel conditions correspond well to diesel-like conditions in terms of gas residuals, pressure and temperature. Finally, the given results show a good agreement for the lift-off length and the ignition delay trends compared to the experimental data, but a slight discrepancy in the combustion process occurrence is observed.

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Computation of Turbulent Evaporating Sprays: Eulerian Versus Lagrangian Approach

Cited by 27 publications

References 12 publications

Numerical Simulation and Validation of Dilute Gas-Particle Flow Over a Backward-Facing Step

Numerical Simulation and Validation of Dilute Gas-Particle Flow Over a Backward-Facing Step

Characterization of a Spray in the Combustion Chamber of a Low Emission Gas Turbine

Modelling of spray and combustion processes by using the Eulerian multiphase approach and detailed chemical kinetics

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