Project Title:
Numerical Simulation of Hypersonic, Shock-Separated Flows in a Turbulent Medium
02.03-3844
911782
Numerical Simulation of Hypersonic, Shock-Separated Flows in a Turbulent Medium
DCW Industries, Inc.
5354 Palm Drive
La Canada
CA
91011
David C.
Wilcox
818-790-3844
LaRC
NAS1-19524
014
02.03-3844
911782
Abstract:
Numerical Simulation of Hypersonic, Shock-Separated Flows in a Turbulent Medium
Using the multiscale model of turbulence devised by Wilcox, an analytical/numerical
method will be applied to investigate hypersonic shock-separated flows in a turbulent
medium. This project will incorporate the multiscale model in a NASA Langley three-dimensional
thin-shear-layer computer program known as CFL3DE and provide for high Mach number
corrections for the turbulence model using a combination of physical reasoning aided
by analytical and numerical tools. A key phenomena pertinent in hypersonic flows,
viz, strong compressibility effects, compressible viscous sublayer and defect layer
structure, and heat-transfer effects will be addressed. Hypersonic viscous-inviscid
interactions will then be numerically simulated. The computations will determine
how well the multiscale model predicts properties of such flow and if it is feasible
to use a second-order-closure model for three-dimensional computations with today's
computer resources.
This project may lead to a greatly improved capability to predict properties of turbulent
flow in incompressible through hypersonic speed ranges. This could help reduce fuel
consumption for airplanes, ships, automobiles, etc.
turbulence, hypersonics, CFD