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- 저자 : 김우레(Woore Kim) (검색결과 2 건)
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홍우람(Wooram Hong),김상훈(Sang Hoon Kim),김우레(Woore Kim),김유신(Yushin Kim),김종암(Chongam Kim) 한국전산유체공학회 2007 한국전산유체공학회 학술대회논문집 Vol.2007 No.-
To develop the aerodynamic performance, there are widely two group of studies are achieved The first one is about design of the vehicles geometry and the second one is about aerodynamic devices. Geometry design is highly credible and stable method But it is not flexible and each parts are related interactively. So if one part geometry are modified, the other parts are required to be redesigned The other hand, flow control by aerodynamic device is flexible and modulized method Though it needs energy, relatively little input makes far advanced aerodynamic performance. Synthetic Jet is one of the second group method The device repeats suction and blowing motion in constant frequency. According to the performance, the flow which are near the flight surface are served momentum. This mechanism can reduce the aerodynamic loss by boundary layer and separated flow. Synthetic jet actuator has several parameters, that influence the flow control. This study focus the parameters effects of the synthetic jet - orifice geometry, frequency, jet speed and etc.
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홍우람(Wooram Hong),김상훈(Sang Hoon Kim),김우레(Woore Kim),김유신(Yushin Kim),김종암(Chongam Kim) 한국전산유체공학회 2007 한국전산유체공학회지 Vol.12 No.2
To develop an aerodynamic performance, two groups of studies have been achieved widely. One is about the geometric design of vehicles and the other is about aerodynamic devices. Geometric design is a credible and stable method However, it is not flexible and each part is related interactively. Therefore, if one part of geometry is modified, the other part will be required to redesign. On the other hand, the flow control by aerodynamic devices is flexible and modulized method. Even though it needs some energy, a relatively small amount of input makes more advanced aerodynamic performance. Synthetic jet is one of the method in the second group. The device repeats suctions and blowing motions in constant frequency. According to the performance, the adjacent flow to flight surface are served momentum. This mechanism can reduce the aerodynamic loss of boundary layer and separated flow. A synthetic jet actuator has several parameters, which influences the flow control. This study focuses on the parameter effects of synthetic jet - orifice geometry, frequency, jet speed and etc.
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