CARS Thermometry in a Supersonic Combustor for CFD Code Validation
作者： A. Cutler , P. Danehy , R. Springer , R. DeLoach , D. Capriotti
DOI: 10.2514/6.2002-743
关键词: Mechanics 、 Combustor 、 Flow (psychology) 、 Mach number 、 Mechanical engineering 、 Injector 、 Engineering 、 Supersonic speed 、 Duct (flow) 、 Combustion chamber 、 Computational fluid dynamics
摘要: Abstract An experiment has been conducted to acquire datafor the validation of computational fluid dynamics (CFD)codes used in design supersonic combustors. Theprimary measurement technique is coherent anti-StokesRaman spectroscopy (CARS), although surface pressuresand temperatures have also acquired. Modern-design-of-experiment techniques tomaximize quality data set (for given level ofeffort) and minimize systematic errors. The combustorconsists a diverging duct with single downstream-angled wall injector. Nominal entrance Mach number 2and enthalpy nominally corresponds 7 flight.Temperature maps are obtained a! several planes theflow for two cases: one case combustor piloted byinjecting fuel upstream main injector, second isnot. Boundary conditions uncertainties adequatelycharacterized. Accurate CFD calculation flow willultimately require accurate modeling chemicalkinetics turbulence-chemistry interactions as well asaccurate turbulent mixing.
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