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
- Resource Relation:
- Conference: 29. AIAA aerospace sciences conference, Reno, NV (USA), 7-10 Jan 1991
- Country of Publication:
- United States
- Language:
- English
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Joint computational/experimental aerodynamics research on a reentry vehicle
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99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AERODYNAMICS
COMPUTER CODES
FLUID FLOW
REENTRY VEHICLES
C CODES
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
COMPUTERIZED SIMULATION
EXPERIMENTAL DATA
F CODES
FLOW MODELS
FLUID MECHANICS
G CODES
H CODES
HYPERSONIC FLOW
LAMINAR FLOW
N CODES
NAVIER-STOKES EQUATIONS
P CODES
S CODES
SUPERSONIC FLOW
TRANSITION FLOW
WIND TUNNELS
DATA
DIFFERENTIAL EQUATIONS
EQUATIONS
INFORMATION
MATHEMATICAL MODELS
MECHANICS
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
SIMULATION
SPACE VEHICLES
TUNNELS
UNDERGROUND FACILITIES
VEHICLES
420400* - Engineering- Heat Transfer & Fluid Flow
990200 - Mathematics & Computers