Study of changes in the aerodynamic characteristics of the axisymmetric supersonic vehicle in case of gas blowing from the lateral surface

Kislovskiy, V. A.; Звегинцев, В. И.

doi:10.1063/1.4963955

Cited by 2 publications

(1 citation statement)

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“…The other way is to change the flow structure by the jet to achieve the purpose of improving the aerodynamic characteristics. For example, the jet was set between every two canards, by interacting with the flow over the canards, the control efficiency of canards can be amplified (Kislovskiy & Zvegintsev, 2016;Li, Wang, Zhao, & Wang, 2018). Some studies have been carried out for jet control, however, few of them focused on reducing reverse rolling moment or eliminating rolling reversal.…”

Section: Introductionmentioning

confidence: 99%

The numerical investigation on the rolling decoupling of a canard-controlled missile using the jet control system

Zhang

Lei

Yin³

et al. 2020

Engineering Applications of Computational Fluid Mechanics

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When the canard-controlled missile is conducting roll control, the asymmetric downwash induced by the canard impacts on the fins and produces a reverse rolling moment, resulting in the aerodynamic coupling between the canards and the fins. The rolling coupling can cause the reduction and even failure of the missile roll control. However, the current rolling decoupling methods always have adverse effects on the lift-drag ratio or flight stability of the missile. Based on the numerical simulation, this paper proposes a new method to reduce the roll coupling by adding a jet system between the canards and the fins. The effect of jet control was obtained under different freestream conditions. The influence of jet control factors on the missile aerodynamic characteristics was investigated and analyzed. The outcomes demonstrate that the jet control can effectively decrease the roll coupling between the canards and the fins, and eliminate the reverse rolling problem in most cases. With the same mass flow rate, the control effect is better at lower Mach number. Jet location and jet mode have a higher influence on the control effect. An optimal mass flow rate exists for the best control efficiency. This decoupling method is simple in structure and can reduce the side force and yawing moment without destroying the lift-drag ratio.

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Section: Introductionmentioning

confidence: 99%