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Simulation of the Turbulent Flow Inside the Combustion Chamber of a Reciprocating Engine With a Finite Element Method
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1994
Year
EngineeringFlow ControlFluid MechanicsTurbulenceDetached Eddy SimulationGas Turbine CombustionSimulationModel EngineComputational MechanicsUnsteady FlowNumerical SimulationIn-cylinder FlowCombustion ChamberLarge Eddy SimulationTurbulent FlameAerospace Propulsion SystemsMultiphase FlowFinite Element MethodCompression StrokesAerospace EngineeringTurbulent Flow InsideTurbulent Flow Heat TransferTurbulence ModelingAerodynamics
This paper presents numerical simulations of turbulent flows during the intake and the compression strokes of a model engine. The Favre average Navier-Stokes equations are solved with a k-ε turbulence model. The numerical procedure uses a time dependent semi-implicit scheme and a finite element method with a moving mesh (Buffat, 1991, Mao, 1990). Results of 2-D axisymmetrical calculations with and without inlet swirl are presented and compared to experimental data (Lance et al., 1991). The influence of different turbulence models and the numerical precision of the simulations are also discussed.