Accession Number:

AD0489258

Title:

AERODYNAMIC FORCES ON THE SNAP-19 FUEL CAPSULE AND NIMBUS B SOLAR PANEL AT A SIMULATED HIGH ALTITUDE

Descriptive Note:

Technical rept.

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

• Boylan, David E.

Report Date:

1966-09-01

Pagination or Media Count:

46.0

Abstract:

Aerodynamic forces on a SNAP-19 fuel capsule and Nimbus B solar panel model were determined over an angle-of-attack range from 0 to 90 deg at a simulated high altitude under hypersonic, cold-wall conditions. Very large viscous-induced effects on aerodynamic drag, lift, and pitching moment were observed. The configurations were unstable about their mid-chord positions except near zero lift. Comparisons are made with inviscid Newtonian and free- molecular flow predictions. Altitude simulated for the full-scale configurations was approximately 260,000 ft for the fuel capsule and 300,000 ft for the solar panel.

Descriptors:

• *NUCLEAR POWER PLANTS
• *SOLAR PANELS
• AERODYNAMIC CHARACTERISTICS
• AERODYNAMIC LOADING
• ANGLE OF ATTACK
• ATMOSPHERE ENTRY
• COLD FLOW
• DRAG
• FORCE(MECHANICS)
• HIGH ALTITUDE
• HYPERSONIC CHARACTERISTICS
• HYPERSONIC FLOW
• LIFT
• METEOROLOGICAL SATELLITES
• PITCH(MOTION)
• SIMULATION
• WIND TUNNEL MODELS

Subject Categories:

• Electric Power Production and Distribution
• SNAP (Systems for Nuclear Auxiliary Power) Technology
• Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE