A shadowgraph study of the National Launch System's (NLS's) 1 1/2 stage and heavy lift launch vehicle (HLLV) configurations is presented. Shadowgraphs are shown for the range of Mach numbers from Mach 0.6 to 5.0 at various angles-of-attack and roll angles. Since the 1 1/2 stage configuration is generally symmetric, no shadowgraphs of any roll angle are shown for this configuration. The major flow field phenomena over the NLS 1 1/2 stage and HLLV configurations are shown in the shadowgraphs. These shadowgraphs are used in the aerothermodynamic analysis of the external flow conditions the launch vehicle would encounter during the ascent stage of flight. The shadowgraphs presented in this study were obtained from configurations tested in the Marshall Space Flight Center's 14-Inch Trisonic Wind Tunnel during 1992.
Shadowgraph Study of the National Launch System's 1 1/2 Stage Vehicle Configuration and Heavy Lift Launch Vehicle Configuration
1994
89 pages
Report
No indication
English
Unmanned Spacecraft , Spacecraft Trajectories & Flight Mechanics , Aerodynamics , Laboratory & Test Facility Design & Operation , Flow distribution , Flow visualization , Heavy lift launch vehicles , National launch vehicle program , Shadowgraph photography , Wind tunnel tests , Mach number , Angle of attack , Roll , Subsonic flow , Supersonic flow , Transonic flow
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