The fuselage generates drag, contributing to the airplane’s overall drag. To enhance aerodynamic efficiency and minimize fuel consumption, fuselage drag must be reduced. This study considers the implementation of a novel bio-inspired design modification to improve flow control and
reduce drag on the fuselage and the aircraft. The fuselage was optimized by modifying the nose and body profiles inspired by marine creatures. The three-dimensional computational analysis was conducted on several modified fuselage configurations. The studies revealed that alterations
made to the nose and the front section of the fuselage were ineffective, as these modifications affected only the nose and not the entire length of the fuselage. Modifying the flat upper surface of the fuselage into a curved profile using a NACA symmetric airfoil series resulted in improved
flow acceleration and an extended low-pressure region. These modifications led to a maximum reduction in drag coefficient of 25% and a maximum increase in lift coefficient of 81%. The increased area resulting from the curvature of the upper surface can efficiently provide additional
luggage storage, crew rest space, and greater passenger cabin capacity.