Robust aerodynamic morphing shape optimization for high-lift missions

Nemati, Mohammad; Jahangirian, A.

doi:10.1016/j.ast.2020.105897

Cited by 20 publications

(1 citation statement)

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“…To simplify the design of a morphed flap, a framework for different cruise conditions has been introduced in reference (Steenhuizen and van Tooren, 2012). Additionally, in order to enhance lift, reference (Nemati and Jahangirian, 2020) proposed a robust airfoil parameterization method for designing morphed leading and trailing edges.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic design of a double slotted morphed flap airfoil– a numerical study

Shahrokhi,

Taeibi Rahni,

Akbari

2024

Front. Mech. Eng.

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Introduction:The objective of this study is to develop and simulate a double slotted morphed flap with the intention of reducing drag and enhancing lift, thereby leading to a smaller flap size and reduced weight.Methods:A flap was meticulously designed to accommodate conditions at Mach 0.2 and Reynolds numbers of 4.7×106. To conduct the simulation, ANSYS FLUENT flow solver and POINTWISE grid generator were utilized. The morphing technique employed involved adjusting both flap mean camber and flap slots, ensuring minimal flow interferences. By discretizing the flap mean camber line, various flap geometries were achieved.Results and Discussions:The findings reveal a significant enhancement in the airfoil’s aerodynamic efficiency attributed to the implementation of the new flap design. The study shows that utilizing double-slotted morphing in the NACA 4412 airfoil at a 30° flap deflection angle increased the lift coefficient by 82% compared to the un-morphed state. A comparison of lift coefficients between this research and the NACA 4412 split flap at a 60° deflection angle indicates that the double-slotted morphing in the NACA 4412 airfoil at a smaller deflection angle of 30° results in a 14% higher maximum lift coefficient.

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Section: Introductionmentioning

confidence: 99%