PREDICTION AND CONTROL OF FLOW ASYMMETRY OVER SLENDER CONICAL BODIES.

Stability of Symmetric and Asymmetric Vortex Pairs over Slender Conical Wings and Bodies

Theoretical analyses are presented for the stability of symmetric and asymmetric vortex pairs over slender conical wings and bodies under small perturbations in an inviscid incompressible flow at high angles of attack and sideslip. The three-dimensional problem of a pair of vortices over slender conical wings and bodies is reduced to a problem in two dimensions by using the conical flow assumpt...

Stability of Vortex Pairs over Slender Conical Bodies: Analysis and Numerical Computation

A N INITIALLY symmetric vortex pair over a slender pointed body or wing–body combination, such as that shown in Fig. 1, becomes asymmetric as the angle of attack is increased beyond a certain value, causing large rolling moments in the case of swept wings or large side forces in the case of slender bodies, even at zero roll and yawing angles. At even larger angles of attack, unsteady vortex she...

Effect of plasma actuation on asymmetric vortex flow over a slender conical forebody

The active flow control technology by using plasma actuation to manipulate forebody vortices on a slender conical body is being studied based on the previous research. This work is motivated by the need to increase the experimental velocity in the wind tunnel via an effective streamlining created by the actuators. A pair of Single-Dielectric Barrier Discharge (SDBD) plasma actuators is installe...

Non-conical Flow past Slender Wings with Leading-edge

Calculations of the Flow over Thick, Conical, Slender Wings with Leading-Edge Separation

The vortex-sheet model of leading-edge separation previously applied to flat-plate delta wings has been applied to thick delta wings in the form of rhombic cones. The simplifications introduced by the use of slender-body theory and an asymptotic treatment for the core of the vortex have been retained. The results show that the vortex sheet leaves the wing tangentially to the lower surface. The ...