Large-eddy simulation analysis of turbulent combustion in a gas turbine engine combustor
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منابع مشابه
Large eddy simulation modelling of combustion for propulsion applications.
Predictive modelling of turbulent combustion is important for the development of air-breathing engines, internal combustion engines, furnaces and for power generation. Significant advances in modelling non-reactive turbulent flows are now possible with the development of large eddy simulation (LES), in which the large energetic scales of the flow are resolved on the grid while modelling the eff...
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Large-eddy simulation (LES) has traditionally been restricted to fairly simple geometries. This paper discusses LES of reacting flows in geometries as complex as commercial gas turbine engine combustors. The incompressible algorithm developed by Mahesh et al. (J. Comput. Phys., 2004, 197, 215–240) is extended to the zero Mach number equations with heat release. Chemical reactions are modeled us...
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The current design of gas-turbine (GT) systems is driven by the need for increased powerdensities, improved fuel-efficiencies, and reduced life cycle costs and environmental impact. Computational techniques have the potential for providing valuable information for the design of GT combustion systems, if adequate models are available. Over recent years, remarkable progress has been made in the d...
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Propane combustion in a trapped vortex combustor (TVC) is characterized via large eddy simulation coupled with filtered mass density function. A computational algorithm based on high order finite difference (FD) schemes, is employed to solve the Eulerian filtered compressible Navier-Stokes equations. In contrast, a Lagrangian Monte-Carlo solver based on the filtered mass density function is inv...
متن کاملAIAA 2003–3698 Aircraft Gas Turbine Engine Simulations
The Center for Integrated Turbulence Simulations (CITS) was created in October of 1997 under the sponsorship of the Department of Energy (DoE) Accelerated Strategic Computing Initiative (ASCI) Alliance program. The over-arching problem to be solved by this Center is the detailed, high-fidelity simulation of the flowpath through complete aircraft gas turbines including the compressor, combustor,...
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تاریخ انتشار 2008