Aerodynamic Study of Blended Wing Body

摘要

In recent years, air transportation has increased between major cities. Conventional aircraft's lack fuel efficiency, high Lift to Drag (L/D) ratio, high payload carrying capacity since there has not been a major technological breakthrough in aerodynamic geometry. Hence, there has been a need to develop a new composite structure to push the boundaries of current technologies and to breathe new life into civil transportation. Blended Wing Body (BWB) bridges the gap between future requirements. The BWB configuration is a new concept in aircraft design which provides greater internal volume, aerodynamics and structural efficiency, noise reduction, and most importantly significant improvement on cost-per-seat-mile. The design approach of BWB is to maximize overall efficiency by integrating the propulsion systems, wings, and the body into a single lifting surface. BWB is a unique tailless single entity where the fuselage is merged with wing and tail. Blended wing body has flattened and airfoil surface which contributes higher lift than conventional ones. The objective of this paper is to study aerodynamic study of blended wing body layout.