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High Enthalpy Cylinder Flow in HEG: A Basis for CFD Validation
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2003
Year
EngineeringBasic Aerodynamic ConfigurationsFluid MechanicsMechanical EngineeringComputational MechanicsGas-liquid FlowRarefied FlowThermodynamic ModellingCompressible FlowCfd CodesNumerical SimulationIn-cylinder FlowTransport PhenomenaThermodynamicsCfd ValidationCfd ResultsFlow PhysicComputational Fluid DynamicsMultiphase FlowHeat TransferFluid MachineryAerospace EngineeringTurbulent Flow Heat TransferAerodynamicsThermal Engineering
Basic aerodynamic configurations are well suited to study fundamental aspects of high enthalpy flows. A test campaign of the flow around a cylinder has been performed in the High Enthalpy Shock Tunnel Gottingen, HEG. Measurements of the density distribution in the shock layer as well as surface pressure and heat flux were taken. The flow in the shock layer is subjected to various relaxation phenomena and therefore the presented measurements provide a useful basis for the validation of physico-chemical models used in CFD codes. This paper presents results of the test campaign and comparisons of measurements to the numerical computations. The sensitivity of the CFD results to different parameters of physico-chemical models is also discussed.