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Träfflista för sökning "WFRF:(Menon Suresh) srt2:(2015-2019)"

Sökning: WFRF:(Menon Suresh) > (2015-2019)

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  • Arshad, Salman, 1987, et al. (författare)
  • Subgrid Reaction-Diffusion Closure for Large Eddy Simulations Using the Linear-Eddy Model
  • 2019
  • Ingår i: Flow, Turbulence and Combustion. - : Springer Science and Business Media LLC. - 1573-1987 .- 1386-6184. ; 103:2, s. 389-416
  • Tidskriftsartikel (refereegranskat)abstract
    • Turbulent combustion models approximate the interaction between turbulence, molecular transport and chemical reactions. Among the many available turbulent combustion models, the present focus is the linear-eddy model (LEM) used as a subgrid combustion model for large eddy simulations. In particular this paper introduces a new LEM closure with the reaction-rate approach to close the filtered chemical source terms in the governing equations for species mass fractions and enthalpy. The new approach is tested using a non-premixed syngas flame and a bluff-body stabilized premixed flame problem. Simulation results are compared to data from a direct numerical simulation and experiments. This comparison shows that mean and rms quantities compare well with experiments and are in the range of previous simulation studies. These results are obtained with a pressure-based and unstructured computational-fluid-dynamics solver, an approach that is preferred in industry.
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3.
  • Gonzalez-Juez, Esteban D., et al. (författare)
  • Turbulent-combustion closure for the chemical source terms and molecular mixing using the linear-eddy model
  • 2017
  • Ingår i: 53rd AIAA/SAE/ASEE Joint Propulsion Conference, 2017. - 9781624105111
  • Konferensbidrag (refereegranskat)abstract
    • Turbulent combustion models approximate the interaction between turbulence, molecular transport and chemical reactions with the purpose of allowing computationally feasible simulations. There are many of these models and the present interest is on the lineareddy model (LEM). Specifically this paper introduces and tests a new method to use LEM to close the filtered chemical source terms in the conservation equations of the thermochemical quantities. For this purpose, this paper discusses the conceptual enhancements of this method over traditional LEM implementations, and its testing in a widely-used bluff-body-stabilized-flame problem.
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