Coupled Rolling And Pitching Oscillation Effects On Transonic Shock Induced Vortex Breakdown Flow Of A Delta Wing
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Unsteady, Transonic Flow Around Delta Wings Undergoing Coupled and Natural Modes Response
Author | : Margaret Anne Menzies |
Publisher | : |
Total Pages | : 516 |
Release | : 1996 |
Genre | : Navier-Stokes equations |
ISBN | : |
Thrust-Induced Effects on a Pitching-Up Delta Wing Flow Field
Author | : |
Publisher | : |
Total Pages | : 41 |
Release | : 1996 |
Genre | : |
ISBN | : |
Experimental study of thrust-induced effects on a pitching-up 60 deg. delta wing was conducted. A downward vectored trailing edge jet has a significant effect in delaying the vortex breakdown. Strong asymmetric vortex bursting can be induced using asymmetric jet control. Detailed PIV measurements are taken to characterize the vortex flow field with and without jet control. A parallel experiment of the vortex flow over a 75 deg. delta wing is made to further the understanding of th vortex breakdown phenomenon. Related investigations of dynamic stall phenomena over a pitching airfoil are also summarized. Concurrently, considerable efforts have been made in the development of an innovative computational scheme. A grid-free vortex distribution technique is introduced to simulate the diffusion process of a vortex-dominated flow. This allows the readily extension of the 2-D vortex method to be used in a 3-D flow field such as a pitching-up delta wing configuration. Several computational examples will be discussed.
Atmospheric Flight Mechanics Conference Held August, 1997 at New Orleans, Louisiana
Author | : American Institute of Aeronautics and Astronautics |
Publisher | : AIAA (American Institute of Aeronautics & Astronautics) |
Total Pages | : 838 |
Release | : 1997 |
Genre | : Technology & Engineering |
ISBN | : |
This volume is the proceedings of the Atmospheric Flight Mechanics Conference, which took place in New Orleans, August 1997. It focuses on the technical progress, issues and challenges associated with atmospheric flight. Technical papers address stability and control, flying qualities (including one session dedicated to pilot-induced oscillations), unsteady and vortex aerodynamics, system and parameter identification, aircraft flight dynamic re-entry and aero assist technologies, and reusable launch vehicles.