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http://dx.doi.org/10.5139/JKSAS.2007.35.3.177

Numerical and Experimental Study on the Aerodynamic Characteristics of FAST Fuselages  

Han, Cheol-Heui (충주대학교 항공기계설계학과)
Cho, Jeung-Bo (한양대학교 대학원 기계공학과 대학원)
Cho, Jin-Soo (한양대학교 기계공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.3, 2007 , pp. 177-182 More about this Journal
Abstract
The effects of three fuselage head shapes and nonplanar ground surface on the aerodynamic characteristics of FAST fuselages are investigated using a boundary element method. Wind tunnel test is also performed to validate the present method and to identify the wall effect on the frictional drag which cannot be analyzed using the present method. It is found that the channel has an effect of increasing the lift of those investigated fuselages. The optimal head shape depends on the design conditions of the FAST and its guideway channel. Comparing the calculated induced drag with the measured total drag, it can be concluded that the profile drag is independent of the ground height. Thus, the present numerical method can be applied to the conceptual design of the high-speed ground transporters if only the profile drag of the vehicle in free flight is assumed to be known.
Keywords
Boundary Element Method; Channel; High Speed Ground Transporter; Wing-In-Ground Effect; Wind Tunnel Test;
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