Methodology for Turbulence Model Validation: Application to Hypersonic Flows

Model Validation Methodology : From Validation Experiments to Systems Level Application

Abstract— Our increased dependence on computer models leads to the natural question – How do we increase the rigor in validating models against experimental data? Models have traditionally been tested against experimental data through simple comparisons such as x-y plots, scatter plots, or contour plots. While such qualitative comparisons are appropriate for model building, the use of such comp...

Turbulence Modeling Validation for Afterbody Flows

The aerothermodynamics phenomena over space launch vehicles or missiles are a challenging problem on space and aeronautical applications. These physical phenomena can strongly affect the engine's aerodynamic performances. The physical problem met on this geometry is essentially the result of the interaction of two merging flows; one issued from a propulsive jet at high speed and high temperatur...

CFD Validation for Hypersonic Flight: Real Gas Flows

The aerodynamics of future hypersonic air-breathing vehicles will be greatly affected by high-enthalpy or “real gas” effects. It is the purpose of a recent NATO Research and Technology Organization study to assess the readiness of computational fluid dynamics to simulate high-enthalpy flows. This paper summarizes the results of this effort through the discussion of four test cases: a transverse...

Methodology for turbulence code validation: Quantification of simulation- experiment agreement and application to the TORPEX experiment

A methodology for plasma turbulence code validation is discussed, focusing on quantitative assessment of the agreement between experiments and simulations. The present work extends the analysis carried out in a previous paper P. Ricci et al., Phys. Plasmas 16, 055703 2009 where the validation observables were introduced. Here, it is discussed how to quantify the agreement between experiments an...

Validation of transient cooling modeling for hypersonic application