応答曲面法を用いたWaverider胴体形状の空力最適化

抄録

The purpose of this research is to realize low drag and low boom technology for supersonic transport (SST). Civil SST has not been realized since 2003 when the Concorde has finished its operation. The critical problems of the Concorde were noise relating to the sonic boom and poor lift-to-drag ratio (L/D). To develop a new type of SST configuration, a high lift configuration for fuselage is investigated and aerodynamic shape optimization is performed by a global optimization method using a Kriging response surface model. As a baseline configuration, we focus on a waverider configuration, which can generate lift force from high pressure of shock waves generated at its lower surface. As a result of the design and analysis, it is confirmed that waverider configurations are promising for efficient SST. The aerodynamic optimization of the waverider configuration is also performed, and then design knowledge related to the performance improvement is obtained.