This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Investigation of the Longitudinal Stability of the T-45A withComputational Fluid Dynamics
Annotation ability available
Sector:
Language:
English
Abstract
Wind tunnel and flight tests of the T-45A aircraft have identified a transonic region of reduced longitudinal stability. Wind tunnel results established the phenomenon as a flow interaction between the wing-body and the horizontal tail; however, insufficient data existed to determine the mechanism causing the reduced stability. Computational Fluid Dynamics (CFD) analysis of the T-45A in the transonic region identified the source of the reduced stability to be an increase in downwash on the horizontal tail caused by mid-span vorticity shed from the wing.
Authors
Citation
Blackburn, K., Agrawal, S., and Jasper, D., "Investigation of the Longitudinal Stability of the T-45A withComputational Fluid Dynamics," SAE Technical Paper 921925, 1992, https://doi.org/10.4271/921925.Also In
References
- Sheen, B.H. Roesch, M.T. “High Speed Wind Tunnel Test of the T-45A Slatted Wing Configuration,” MDC B2265 July 1990
- Vatsa, V.N. Wedan, B.W. “Development of an Efficient Multigrid Code for 3-D Navier-Stokes Equations,” AIAA-89-1791 June 1989
- Agrawal, S. Vatsa, V.N. Kinard, T. A. “Transonic Navier-Stokes Flow Computations over Wing-Fuselage Geometries,” AIAA-91-3205 September 1991