Conclusion
摘要
This thesis investigates structural solutions for extended hybrid laminar flow control suction panels to reduce the aircraft’s friction drag by up to 18%, to increase aviation’s energy efficiency and to align with the objectives of the European Green Deal. To reduce the complexity of existing laminar flow control technologies, this thesis aims to develop an integrally and additively manufactured suction panel comprising a micro-perforated porous sheet integrally printed with a densely supporting porous core structure designed as triply periodic minimal surface (TPMS) sheet networks. The panel’s components are investigated for their mechanical and aerodynamic characteristics, resulting in prediction models and design methods that provide the foundation for the additive manufacturing of suction panels. Additional system-level studies demonstrate the feasibility of additively manufacturing compliant suction panels. The results show that a curved panel with an additively manufactured suction skin and TPMS core structure enables passive suction rate control with significant transition delay.