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지면효과익의 공기역학특성을 위한 모사실험장치 개발에 관한 연구
김태호(Tae-Ho Kim),김희동(Heuy-Dong Kim),이명호(Myeong-Ho Lee),손명환(Myong-Hwan Shon),?村秀男(Hideo Kashimura) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
A new ground transportation system is often simulated by the wing in ground effect(WIG). Recently, several<br/> kinds of experimental and computational studies are being carried out to investigate the WIG aerodynamic<br/> characteristics which are of practical importance to develop the new ground transportation vehicle system. These<br/> works are mainly based on conventional wind tunnel tests, but many problems associated with the WIG<br/> aerodynamic characteristics can not be satisfactorily resolved. In order to develop the new ground transportation<br/> vehicle system the WIG should be further investigated. To do this, it is necessary to develop a s imulator appropriate<br/> to the WIG aerodynamics. The objective of the present study is to clarify the aerodynamic characteristics of the<br/> WIG and to develop a new experimental test rig for the investigation of the WIG aerodynamics. Some preliminary<br/> experiments are performed to investigate the usefulness of the WIG simulator.
김태호(Tae-Ho Kim),김희동(Heuy-Dong Kim),손명환(Myong-Hwan Shon),이명호(Myeong-Ho Lee) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
Many flight bodies are essentially imposed in gradually accelerating and decelerating free streams during<br/> taking-off and landing processes. However, the wing aerodynamics occurring in such a stream have not yet<br/> been investigated in detail. The objective of the present study is to make clear the aerodynamic characteristics<br/> of an aerofoil placed in the accelerating and decelerating free stream conditions. A computational analysis is<br/> carried out to solve the unsteady, compressible, Navier-Stokes equations which are discretized using a fully<br/> implicit finite volume method. Computational results are employed to reveal the major characteristics of the<br/> aerodynamics over the gradually accelerating aerofoil wings.