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Unsteady aerodynamic flow field analysis of the space shuttle configuration. part 1: orbiter aerodynamics
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ericsson, L. E. Reding, J. P. |
| Copyright Year | 1976 |
| Description | An analysis of the steady and unsteady aerodynamics of the space shuttle orbiter has been performed. It is shown that slender wing theory can be modified to account for the effect of Mach number and leading edge roundness on both attached and separated flow loads. The orbiter unsteady aerodynamics can be computed by defining two equivalent slender wings, one for attached flow loads and another for the vortex-induced loads. It is found that the orbiter is in the transonic speed region subject to vortex-shock-boundary layer interactions that cause highly nonlinear or discontinuous load changes which can endanger the structural integrity of the orbiter wing and possibly cause snap roll problems. It is presently impossible to simulate these interactions in a wind tunnel test even in the static case. Thus, a well planned combined analytic and experimental approach is needed to solve the problem. |
| File Size | 5709085 |
| Page Count | 73 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760018240 |
| Archival Resource Key | ark:/13960/t75t8ds2t |
| Language | English |
| Publisher Date | 1976-03-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Slender Wings Structural Failure Vortices Unsteady Aerodynamics Steady Flow Flow Distribution Reattached Flow Transonic Speed Unsteady Flow Aerodynamic Characteristics Space Shuttle Orbiters Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
