| Effect of the Flow Actuator on the Asymmetric Vortex at High Angle of Attack |
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Eunseok Lee, Jin Ik Lee, Kwang Seop Lee |
| 고받음각 오자이브의 비대칭 와류에 작용하는 구동기 효과 분석 |
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이은석, 이진익, 이광섭 |
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국방과학연구소 |
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| Abstract |
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The effect of the flow actuator on the asymmetric vortex structure around the ogive-cylinder body with fineness ratio of 4 flying at the speed of Mach 0.1 at angle of attack of 50 degree is studied. The ogive-cylinder model is developed with the actuator placed near the nose tip and numerically simulated using the in-house CFD code named KFLOW. The numerical simulation employs two different actuator modeling: one is the boundary condition given by blowing normal to the surface and another shearing on the surface. The numerical simulation reveals that response of the vortex structure to the actuation is dependent on the type of modeling as well as the strength and direction of the actuation. |
| Key Words:
Plasma Actuator, Asymmetric Vortex, Ogive, High Angle of Attackt, Flow Control |
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