Turbulence models and Reynolds analogy for two-dimensional supersonic compression ramp flow

Author:: Bidek, Maleina C.
Published:: Jan 1, 1994.
Physical Description:: 1 electronic document
Additional Creators:: Wang, Chi R.

Online Version

hdl.handle.net , Connect to this object online.

Availability

Finding items...

Restrictions on Access:

Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access

Summary:

Results of the application of turbulence models and the Reynolds analogy to the Navier-Stokes computations of Mach 2.9 two-dimensional compression ramp flows are presented. The Baldwin-Lomax eddy viscosity model and the kappa-epsilon turbulence transport equations for the turbulent momentum flux modeling in the Navier-Stokes equations are studied. The Reynolds analogy for the turbulent heat flux modeling in the energy equation was also studied. The Navier-Stokes equations and the energy equation were numerically solved for the flow properties. The Reynolds shear stress, the skin friction factor, and the surface heat transfer rate were calculated and compared with their measurements. It was concluded that with a hybrid kappa-epsilon turbulence model for turbulence modeling, the present computations predicted the skin friction factors of the 8 deg and 16 deg compression ramp flows and with the turbulent Prandtl number Pr(sub t) = 0.93 and the ratio of the turbulent thermal and momentum transport coefficients mu(sub q)/mu(sub t) = 2/Prt, the present computations also predicted the surface heat transfer rates beneath the boundary layer flow of the 16 compression ramp.

Other Subject(s):

FLUID MECHANICS AND HEAT TRANSFER

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 19940020637.
Accession ID: 94N25119.
NAS 1.15:106474.
E-8349.
NASA-TM-106474.
1994 Thermophysics and Heat Transfer Conference; 20-23 Jun. 1994; Colorado Springs, CO; United States.

Terms of Use and Reproduction:

No Copyright.

View MARC record | catkey: 15660089