Preliminary Aerodynamic Design Space of a Box-Wing Airliner
The box-wing (or Prandtlplane) aircraft concept presents a non-planar-wing alternative to the conventional aircraft design paradigm which could offer great advantages in efficiency and hence reduced costs and emissions. The vertical wingtips between the upper and lower wings ensure much lower induced drag, and hence an aerodynamic design analysis was conducted to look at the design space for a 150-seat short-range box-wing aircraft, replacing perhaps the Airbus A320. Parametric variation undertaken through vortex-lattice methods allows exploration of the various possibilities and comparison against the baseline A320 model, taking into account several different geometric parameters and the effect on important aerodynamic qualities. Results indicate that for a similar wingspan, a Prandtlplane configuration could lead to drag reduction of up to 40％. The vertical separation between the wings was found to be the key geometric characteristic for reducing induced drag. The importance of choosing the right wing geometric parameter for configuration feasibility analysis is also highlighted. Overall, the Prandtlplane is shown to be highly attractive and a number of areas of key research are outlined
Box-wing conceptual design unconventional configuration wing geometry,design space induced drag vertical winglets vortex-lattice method
Ishan Roy Salam Cees Bil
School of Aerospace, Mechanical & Manufacturing Engineering, Royal Melbourne Institute of Technology, GPO Box 2476V, Melbourne, Victoria, 3001, Australia
国际会议
2011年亚太航空航天技术学术会议(APISAT 2011)
澳大利亚
英文
1-10
2011-02-28（万方平台首次上网日期，不代表论文的发表时间）