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Space launch system liftoff and transition aerodynamic characterization in the nasa langley 14- by 22-foot subsonic wind tunnel
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Bennett, David W. Pinier, Jeremy T. Paulson, John W. Erickson, Gary E. Blevins, John A. Tomek, William G. |
| Copyright Year | 2015 |
| Description | A 1.75% scale force and moment model of the Space Launch System was tested in the NASA Langley Research Center 14- by 22-Foot Subsonic Wind Tunnel to quantify the aerodynamic forces that will be experienced by the launch vehicle during its liftoff and transition to ascent flight. The test consisted of two parts: the first was dedicated to measuring forces and moments for the entire range of angles of attack (0deg to 90deg) and roll angles (0 deg. to 360 deg.). The second was designed to measure the aerodynamic effects of the liftoff tower on the launch vehicle for ground winds from all azimuthal directions (0 deg. to 360 deg.), and vehicle liftoff height ratios from 0 to 0.94. This wind tunnel model also included a set of 154 surface static pressure ports. Details on the experimental setup, and results from both parts of testing are presented, along with a description of how the wind tunnel data was analyzed and post-processed in order to develop an aerodynamic database. Finally, lessons learned from experiencing significant dynamics in the mid-range angles of attack due to steady asymmetric vortex shedding are presented. |
| File Size | 1560223 |
| Page Count | 35 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150006862 |
| Archival Resource Key | ark:/13960/t7gr1x907 |
| Language | English |
| Publisher Date | 2015-01-05 |
| Access Restriction | Open |
| Subject Keyword | Launch Vehicles And Launch Operations Fluid Mechanics And Thermodynamics Ground Support Systems And Facilities (space) Aerodynamics Vortex Shedding Computational Fluid Dynamics Liftoff Launching Umbilical Towers Moments Spacecraft Models Aerodynamic Forces Spacecraft Launching Data Bases Characterization Attitude Inclination Subsonic Wind Tunnels Launch Vehicles Azimuth Wind Tunnel Tests Launching Pads Transition Flight Pressure Measurement Roll Angle of Attack Crew Exploration Vehicle Spacecraft Configurations Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
