Computational Analysis of the Aerodynamics of Camber Morphing

Huntley, Samantha J; Allen, Christian B; Woods, Benjamin K.S.

doi:10.2514/6.2019-2914

Cited by 11 publications

(17 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Research works on the computational performance of morphing technology mainly focus on the aerodynamic analysis of targeted configurations of certain morphing styles and their mechanisms [38,39] only, or additionally, on the morphing concept's degree of deformation and power consumption [40,41]. The main objective of this work is to clarify the actual and quantitative benefits of morphing wings regarding their D reduction by comparison of various camber morphing rates with different configuration of conventional wings generated for various flap deflection angles.…”

Section: Problem Statementmentioning

confidence: 99%

Comparative Aerodynamic Performance Analysis of Camber Morphing and Conventional Airfoils

Majid

Joe

2021

Applied Sciences

View full text Add to dashboard Cite

This paper aims to numerically validate the aerodynamic performance and benefits of variable camber rate morphing wings, by comparing them to conventional ones with plain flaps, when deflection angles vary, assessing their D reduction or L/D improvement. Many morphing-related research works mainly focus on the design of morphing mechanisms using smart materials, and innovative mechanism designs through materials and structure advancements. However, the foundational work that establishes the motivation of morphing technology development has been overlooked in most research works. All things considered, this paper starts with the verification of the numerical model used for the aerodynamic performance analysis and then conducts the aerodynamic performance analysis of (1) variable camber rate in morphing wings and (2) variable deflection angles in conventional wings. Finally, we find matching pairs for a direct comparison to validate the effectiveness of morphing wings. As a result, we validate that variable camber morphing wings, equivalent to conventional wings with varying flap deflection angles, are improved by at least 1.7% in their L/D ratio, and up to 18.7% in their angle of attack, with α = 8° at a 3% camber morphing rate. Overall, in the entire range of α, which conceptualizes aircrafts mission planning for operation, camber morphing wings are superior in D, L/D, and their improvement rate over conventional ones. By providing the improvement rates in L/D, this paper numerically evaluates and validates the efficiency of camber morphing aircraft, the most important aspect of aircraft operation, as well as the agility and manoeuvrability, compared to conventional wing aircraft.

show abstract

Section: Problem Statementmentioning

confidence: 99%

Comparative Aerodynamic Performance Analysis of Camber Morphing and Conventional Airfoils

Majid

Joe

2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…By doing so, the two parameters that can vary lift coefficient-angle of attack and actuation input-are condensed into a single curve that describes the best obtainable performance for each configuration (Fig. 11) [38]. This condensed metric is particularly useful when comparing the aerodynamic performance of different trailing edge devices (e.g.…”

Section: Fishbac Vs Flapmentioning

confidence: 99%

Experimental Aerodynamic Comparison of Active Camber Morphing and Trailing-Edge Flaps

Rivero¹,

Fournier²,

Μανωλέσος

et al. 2021

AIAA Journal

View full text Add to dashboard Cite

Unlike hinged flaps (e.g. ailerons, elevator and rudder), camber morphing devices vary camber distribution in a smooth and continuous way, resulting in aerodynamic efficiency improvements due to the absence sharp changes in airfoil camber. One such camber morphing concept, the Fish Bone Active Camber (FishBAC) device, has shown significant aerodynamic benefits when compared to a flap. In this work, a quasi-2D wind tunnel test was performed to investigate the aerodynamic performance of a FishBAC device and compare it to a trailing edge plain flap. A combination of quasi-steady force balance and wake rake pressure measurements were used to determine aerodynamic force coefficients. These measurements are complemented

show abstract

“…This article’s related research works have numerical and experimental investigations [ 13 , 17 , 28 , 39 , 44 ]. However, it is necessary to eventually develop highly accurate and computationally inexpensive modeling and analysis tools to address morphing in transition states during flight to overcome the shortcomings of typical and conventional approaches and procedures [ 55 ]. As the first but most crucial step upward, authors investigate comparatively the numerical analysis of variable camber morphing airfoils and their behaviors in a transitional mode.…”

Section: Introductionmentioning

confidence: 99%

Aerodynamic Analysis of Camber Morphing Airfoils in Transition via Computational Fluid Dynamics

Joe

Majid

2022

Biomimetics

View full text Add to dashboard Cite

In this paper, the authors analyze an essential but overlooked area, the aerodynamics of the variable camber morphing wing in transition, where 6% camber changes from 2% to 8% using the two airfoil configurations: NACA2410 and NACA8410. Many morphing works focus on analyzing the aerodynamics of a particular airfoil geometry or already morphed case. The authors mainly address “transitional” or “in-between” aerodynamics to understand the semantics of morphing in-flight and explore the linearity in the relationship when the camber rate is gradually changed. In general, morphing technologies are considered a new paradigm for next-generation aircraft designs with highly agile flight and control and a multidisciplinary optimal design process that enables aircraft to perform substantially better than current ones. Morphing aircraft adjust wing shapes conformally, promoting an enlarged flight envelope, enhanced performance, and higher energy sustainability. Whereas the recent advancement in manufacturing and material processing, composite and smart materials has enabled the implementation of morphing wings, designing a morphing wing aircraft is more challenging than modern aircraft in terms of reliable numerical modeling and aerodynamic analysis. Hence, it is interesting to investigate modeling the transitional aerodynamics of morphing airfoils using a numerical analysis such as computational fluid dynamics. The result shows that the SST k-ω model with transition/curvature correction computes a reasonably accurate value compared with an analytical solution. Additionally, the CL is less sensitive to transition near the leading edge in airfoils. As the camber rate changes/is gradually increased, the aerodynamic behavior correspondingly changes linearly in-between.

show abstract

Computational Analysis of the Aerodynamics of Camber Morphing

Cited by 11 publications

References 26 publications

Comparative Aerodynamic Performance Analysis of Camber Morphing and Conventional Airfoils

Comparative Aerodynamic Performance Analysis of Camber Morphing and Conventional Airfoils

Experimental Aerodynamic Comparison of Active Camber Morphing and Trailing-Edge Flaps

Aerodynamic Analysis of Camber Morphing Airfoils in Transition via Computational Fluid Dynamics

Contact Info

Product

Resources

About