Joint computational/experimental aerodynamics research on a reentry vehicle: Part 2, Computational results
Computational aerodynamics simulation applied to supersonic and hypersonic flight vehicles has significantly increased during the last several years. Flow field simulations have been computed for a wide variety of vehicles from ballistic reentry vehicles to the Space Shuttle. Although computational aerodynamics simulation has been taking more responsibility during this time, wind tunnel experimentation has continued to play the major role in flight vehicle analysis and design. This role, however, is changing because of the great strides in the capability and confidence in numerical simulations. In this paper computational results are obtained for a spherically blunted cone with a slice parallel to the cone axis. Aerodynamic force and moment predictions from Sandia's CFD codes are compared with wind tunnel data from the Sandia Mach 8 hypersonic wind tunnel. These comparisons are made on a sliced reentry vehicle both with and without a windward flap. The windward flap will be deflected 10{degree}, 20{degree}, and 30{degree}. Inviscid/boundary layer codes and the Parabolized Navier-Stokes code are used to generate solutions for the sliced vehicle. In the region of the flap, some reversed flow is apparent and a full Navier-Stokes code will be used to provide comparisons with the data. Force and moment and surface flow visualization comparisons are made for laminar, ideal gas flow. This will be the first of a series of papers providing comparisons with the Sandia wind tunnel data. Additional papers will report comparisons with surface pressure measurements. 21 refs., 9 figs., 1 tab.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6381075
- Report Number(s):
- SAND-90-1384C-Pt.2; CONF-910117--3-Pt.2; ON: DE90012765
- Country of Publication:
- United States
- Language:
- English
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Joint computational and experimental aerodynamics research on a hypersonic vehicle
Joint computational/experimental aerodynamics research on a reentry vehicle
Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
AERODYNAMICS
C CODES
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
DATA
DIFFERENTIAL EQUATIONS
EQUATIONS
EXPERIMENTAL DATA
F CODES
FLOW MODELS
FLUID FLOW
FLUID MECHANICS
G CODES
H CODES
HYPERSONIC FLOW
INFORMATION
LAMINAR FLOW
MATHEMATICAL MODELS
MECHANICS
N CODES
NAVIER-STOKES EQUATIONS
NUMERICAL DATA
P CODES
PARTIAL DIFFERENTIAL EQUATIONS
REENTRY VEHICLES
S CODES
SIMULATION
SPACE VEHICLES
SUPERSONIC FLOW
TRANSITION FLOW
TUNNELS
UNDERGROUND FACILITIES
VEHICLES
WIND TUNNELS