Conceptual Wing Design Methodology for Aircraft with Hybrid Laminar Flow Control

This paper presents a wing design methodology for civil aircraft with hybrid laminar flow control (HLFC), conceived for application in conceptual and preliminary aircraft design. It is based on a quasi-three-dimensional approach that comprises sophisticated methods for estimation of transonic aerodynamic characteristics and transition prediction. It allows to design and multi-point optimize HLFC airfoils as well as predict large arrays of drag polars in a short time. The methodology has been implemented into an automated and robust process and integrates itself into the ILR overall aircraft design platform MICADO. The paper focuses on the elements of the aerodynamic process flow and shows its integration and applicability to overall aircraft design.