Search or ask a question

Canard forward-sweep telescoping wing aerodynamic configuration with variable span wing area

Forward-swept wing

Best insight from top research papers

The canard-forward-sweep telescoping wing configuration combines the features of a canard wing, forward-swept wing, and a telescoping mechanism for variable wing span. This configuration offers advantages such as improved lift characteristics, higher stalling angle, and increased lift coefficient at high angles of attack . The telescoping mechanism allows for continuous variation of the wing span, achieved through the movement of inner, middle, and outer wing sections driven by linear motors . The aerodynamic load is transferred from the skin to the beams through wing ribs, and the skin of the inner and outer wing sections is sleeved on the middle wing section during expansion and contraction . This variable wing area design enables the aircraft to adapt to different use conditions and obtain varying lift forces .

Answers from top 5 papers

PDF

Open Access

More filters

Papers (5)	Insight
Patent Aircraft with variable aerodynamic layout Zheng Yu, Ge Yunsong, Chen Guanyu, Han Yining, Yang Mingchao - Show less +4 more 30 Mar 2016 4 Citations	The paper does not mention anything about a canard forward-sweep telescoping wing aerodynamic configuration with variable span wing area.
Patent Wing with variable wing area Wang Zhicheng, Li Yulong - Show less +1 more 04 May 2018	The provided paper does not mention anything about a canard forward-sweep telescoping wing aerodynamic configuration with variable span wing area.
Patent Telescopic wing structure with continuously variable wingspans Zhu Zaoxu, Xie Fangfang, Tingwei Ji, Zheng Yao - Show less +3 more 27 Mar 2020	The provided paper does not mention anything about a canard forward-sweep telescoping wing aerodynamic configuration with variable span wing area.
Open access Experimental investigation on longitudinal aerodynamic characteristicsof Canard-Forward-Swept wing configuration Zhan Jing-xia 01 Jan 2004 3 Citations	The provided paper does not mention anything about a canard forward-sweep telescoping wing aerodynamic configuration with variable span wing area.
Journal Article•DOI Aerodynamic characteristics of canard-forward swept wing aircraft configurations G. Q. Zhang, Simon C. M. Yu, A. Chien, S. X. Yang - Show less +3 more 30 Mar 2013-Journal of Aircraft 14 Citations	The provided paper does not mention anything about a canard forward-sweep telescoping wing aerodynamic configuration with variable span wing area.

My columns

Related Questions

What is Canva?5 answersCanva is a web-based application that provides tools for designing and creating interactive learning materials, particularly for students and teachers. It offers both free features and subscription-based access to additional features. Canva can be used by elementary school teachers to design engaging teaching materials, such as digital puzzle evaluation sheets, which can improve learning outcomes and make evaluations more enjoyable. The application has been found to have a positive effect on students' cognitive learning outcomes, particularly in subjects like biodiversity. Canva is also recognized as an effective learning tool for students, especially in science subjects, as it enhances learning outcomes, motivation, and scientific literacy. Additionally, Canva is widely used by businesses and startups to create visual designs and promotional media, offering various aspects of the 7C Framework, including context, content, community, communication, connection, and commerce.

How the front wing improves the f1?5 answersThe front wing improves the performance of Formula One (F1) vehicles in several ways. Firstly, it plays a crucial role in generating aerodynamic forces and controlling the airflow, which maximizes the overall aerodynamic performance of the car. Additionally, the front wing design is essential for achieving high performance, as each component of the car has an aerodynamic interaction with the others, and a good match between them is necessary. The front wing also contributes to the car's downforce, which increases the grip and stability of the vehicle, preventing it from being thrown off the track. Furthermore, the front wing design is constrained by regulations, making it more challenging to find optimal designs. However, hybrid shape optimization approaches have been developed to obtain optimal front wing designs that comply with regulations and deliver improved performance. Overall, the front wing's aerodynamic and structural behavior significantly impacts the performance of F1 vehicles, making it a critical component for achieving success on the track.

How does the morphing Selig S1223 aerofoil inspired by avian bird affect the aerodynamic performance of an aircraft?5 answersThe morphing Selig S1223 aerofoil inspired by avian birds has a significant impact on the aerodynamic performance of an aircraft. The use of morphing techniques, such as variable sweep angle of the wingtip and synchronous extension and retraction of the tail, allows the aircraft to meet various aerodynamic performance requirements. The morphing airfoil reduces the distance between the trailing edge and ground, enhancing the ground effect and increasing lift. Additionally, the variable-camber and -chord airfoil improve high lift characteristics during take-off and increase the lift-to-drag ratio at transonic cruise and low-speed task stages. This implies that an aircraft with a morphing airfoil can achieve high aerodynamic performance throughout all stages of flight.

How does the morphing Selig S1223 aerofoil inspired by avian bird affect the aerodynamic performance?5 answersThe morphing Selig S1223 aerofoil inspired by avian birds has a significant impact on aerodynamic performance. The addition of a bionic alula to the flapping airfoil enhances lift coefficient and delays stall angle, resulting in improved flight capabilities in slow-speed flight. The combination of flapping and local sweep morphing in the bio-inspired wing also enhances aerodynamic performance, increasing the average lift coefficient and improving maneuverability and stability. Furthermore, the use of a rotating cylinder embedded onto the aerofoil design utilizing the Magnus effect generates higher lift coefficients and delays stall angle, making it suitable for high-altitude platform applications. These findings demonstrate that the morphing Selig S1223 aerofoil, inspired by avian birds, significantly improves aerodynamic performance by enhancing lift coefficient, delaying stall angle, and improving maneuverability and stability.

How efficient is a canted winglet?5 answersCanted winglets are efficient in reducing lift-induced drag and improving the aerodynamic performance of aircraft. They increase the effective aspect ratio of the wing without adding significant weight to the structure. By diffusing the shed wingtip vortex, canted winglets reduce drag due to lift and improve the lift-to-drag ratio of the wing. Numerical studies have shown that canted winglets can increase lift by approximately 12% and decrease drag by approximately 4%. They can also increase the lift-to-drag ratio by about 11%. Variable cant angle winglets have been proposed as a way to optimize lift-induced drag reduction at different flight conditions. Adjusting the cant angle of the winglets can improve aerodynamic performance at different flight phases. Increasing the winglet cant angle from 15 to 60 can enhance the peak lift-to-drag ratio by approximately 3.5%. Therefore, canted winglets are an efficient technology for improving the aerodynamic efficiency of aircraft.

The mathematical link between the flight of birds and the aerodynamics of aircrafts?3 answersBird flight and the aerodynamics of aircrafts are linked mathematically through the principles of lift and thrust. Birds achieve lift and thrust through the flapping or oscillating motion of their wings, which is enabled by the system of flight feathers. The shape of the bird's wing can be adjusted to meet the demands of different flight situations, such as wind gusts or object avoidance. In addition, the tail of the bird plays an important role in flight. Aircrafts, on the other hand, rely on the design of their wings and engines to generate lift and thrust. The aerodynamic performance of aircrafts in formation flight can be influenced by the relative distances between the aircrafts. By studying bird flight, researchers can gain insights into the aerodynamic principles that can be applied to the design and optimization of aircrafts.

See what other people are reading

What impact doews mass distribution have on flapping wing?

Mass distribution plays a crucial role in the flight dynamics of flapping wings. Research indicates that the wing-to-body mass ratio (WBMR) affects aerodynamic performance, flight stability, and power consumption. Additionally, the mass distribution of a flapping Micro Air Vehicle (MAV) can influence its dynamic stability and response to disturbances. Furthermore, the design of flapping-wing robots (FWRs) considers mass distribution to optimize flexibility, speed, load capacity, and endurance. Studies on butterflies show that wing mass significantly impacts agility and maneuverability, affecting aerodynamic forces and rotational motion. Moreover, the structure of a flapping wing vehicle is carefully studied to understand bending and twisting characteristics, with mass distribution playing a key role in determining aerodynamic load transfer. Overall, mass distribution is a critical factor in optimizing the performance and stability of flapping wings.What effect does the phase difference of pitch angle have on flapping wings?

The phase difference of the pitch angle significantly impacts the aerodynamic performance of flapping wings. Research indicates that an advanced pitching phase angle (ϕ > 90°) can lead to increased lift and efficiency, while a delayed phase angle (ϕ < 90°) results in decreased lift and efficiency, ultimately reducing the lift-to-drag ratio. Furthermore, in a tandem wing configuration, altering the phase angle between the fore and hind wings affects the timing of vortex interactions, leading to changes in aerodynamic force production and efficiencies of the hind wing. These findings highlight the critical role of pitch angle phase difference in optimizing the performance of flapping wings, with advanced pitching angles showing promise for enhancing lift and efficiency.What effect does active pitch angle have on flapping wings?

Active pitch angle significantly influences the aerodynamics and performance of flapping wings. Research indicates that varying the pitch angle can lead to changes in lift, drag, and lift-to-drag ratio. For instance, advanced pitching angles (>90°) can enhance lift and lift-to-drag ratio, while delayed pitching angles (<90°) may decrease lift and increase drag, ultimately reducing the efficiency of the wing. Moreover, the interaction between the wing and the wake is crucial, with different types of interactions affecting lift generation differently based on the pitch angle. Therefore, understanding and optimizing the active pitch angle is essential for improving the flight control and efficiency of flapping-wing systems, such as micro air vehicles.Twist angle effect on stability of flying wing proformance?

The twist angle plays a crucial role in the stability and performance of flying-wing aircraft. Optimizing the twist angle can enhance lateral stability, longitudinal stability, and even stealth performance of flying-wing UAVs. Studies have shown that applying negative twist delays flow separation, leading to pitch-break at higher angles of attack, while positive twist can increase lift-to-drag ratio and lower the onset angle for pitch-break. Additionally, customized wing designs with specific twist angles across the wingspan have been found to improve hover performance and endurance of single rotor aerial crafts. Understanding the impact of twist on aerodynamic forces and efficiency is crucial, as it influences the effective angles of attack and overall performance of flying-wing configurations.What impact doews mass distribution have on flapping wing pitch angle?

The mass distribution of flapping wings significantly affects the pitch angle during flight. Research indicates that a higher wing-mass ratio leads to larger vertical and horizontal oscillations in each stroke, resulting in decreased speeds of the wing tip and leading edge, ultimately affecting aerodynamic forces. Additionally, the body configuration and deformations, influenced by mass distribution, play a crucial role in modifying the perturbed behavior of the system, impacting the orientation of the stroke plane and overall flight dynamics. Furthermore, the inertial forces due to wing mass can intensify the time variation of the pitching angle, affecting the aerodynamic performance and stability of flapping wings. Therefore, optimizing mass distribution is essential for controlling pitch angle and ensuring efficient aerodynamic performance in flapping wing systems.What role bird's wing play in aerodynamics of flight?

Bird wings play a crucial role in the aerodynamics of flight, enabling birds to navigate through various flight conditions with remarkable efficiency and agility. The unique morphological and functional aspects of bird wings contribute significantly to their aerodynamic performance, allowing for lift generation, thrust, and maneuverability. The preflex mechanism of bird wings acts as a suspension system to mitigate the effects of gusts and turbulence, enhancing stability and reducing the impulse to the torso and head, which is vital for tasks such as landing and prey capture. This is complemented by the unsteady aerodynamics of flapping wings, where transitions between downstroke and upstroke phases generate unique flow structures that modify the forces exerted by the wings, contributing to drag reduction and lift enhancement. The diversity in wing morphologies among birds reflects their adaptation to different flight styles, with morphological differences primarily affecting drag rather than lift. This suggests that wing shape is closely linked to changes in aerodynamic drag, highlighting the importance of aerodynamics during flapping rather than gliding. Moreover, the leading edge vortex, identified as a convergent solution across flying species, including birds, to avoid stall, underscores the complexity of flapping flight and the need for further research to understand other aerodynamic mechanisms. Low-speed maneuvering flight, such as turning, showcases the precise control birds have over their aerodynamics, with torso angular accelerations predicted by aerodynamic torques generated through wing kinematics rather than contralateral asymmetries in wing speed or area. The morphing of wings during flight, observed in raptors, further illustrates the adaptability of bird wings to maximize aerodynamic performance across different flight modes, with extended wings offering higher force ratios during flapping compared to swept wings. Research on insect-scale flapping-wing aerodynamics provides insights into the challenges and special features of low Reynolds number flyers, which share similarities with bird flight in terms of generating and balancing lift and thrust in uncertain environments. Numerical models of avian flight have revealed the complex flow configurations and vortex dynamics associated with varying wingbeat frequencies and flow velocities, offering a deeper understanding of the aerodynamic performance of flapping wings. The aerodynamic capabilities of different upstroke kinematics during slow flight further demonstrate the ability of bird wings to produce substantial aerodynamic forces, supporting body weight and generating thrust. Lastly, the development of morphing wing designs inspired by birds highlights the potential for adapting wing geometry to meet different aerodynamic requirements, enhancing maneuverability and wind resistance in engineered flight systems.What specific physical characteristics enable birds to achieve efficient flight through aerodynamics?

Birds achieve efficient flight through a combination of specific physical characteristics and aerodynamic mechanisms that have been optimized through evolution. The morphology of birds, including the shape and flexibility of their wings, plays a crucial role in their aerodynamic performance. For instance, the ability of birds to morph their wings during flight allows them to maximize aerodynamic performance by adjusting wing shape across different flight speeds and modes, such as during take-off and gliding. This morphing capability is complemented by the wing's structural properties, such as the twist of the wing, which adjusts the effective angle of attack along the wing's span to maintain aerodynamic efficiency across various flight conditions. The kinematics of bird flight, including flapping and gliding, are also essential for efficient aerodynamics. Flapping flight benefits from unsteady aerodynamic mechanisms, such as the generation of vortices during the transition between downstroke and upstroke, enhancing lift and reducing drag. These unsteady mechanisms are particularly important for smaller birds and are considered for applications in Micro Air Vehicle (MAV) designs due to their efficiency in hovering and maneuvering. Furthermore, the passive and active movements of birds' wings, influenced by fluid–structure interactions, contribute to their aerodynamic efficiency. The flexibility of wings allows for passive camber adjustments in response to fluid forces, leading to spontaneous flapping motions under certain conditions, which enhance lift. Additionally, the aerodynamic function of bird bodies and the retraction of wings during upstroke in some species contribute to a more uniform lift distribution and higher span efficiency, outperforming other flying animals like bats. Birds' ability to perform intermittent flight, such as flap-gliding at slow speeds and flap-bounding at fast speeds, further reduces the power cost of flight, demonstrating an adaptation to the energetic demands of flying. Maneuverability and stability, critical aspects of bird flight, are achieved through design features that allow for bilateral asymmetry of force production and the use of the tail for lift, drag, and maneuvering. These characteristics, combined with the evolutionary optimization of wing morphology for flapping flight over gliding, underscore the complex interplay of physical traits that enable birds to achieve efficient flight through aerodynamics.Do flaps on a sailplane increase performacne?

Flaps on a sailplane can indeed increase performance by enhancing aerodynamic characteristics. Various studies have explored different types of flaps and their impact. For instance, research on Gurney flaps, morphing flaps, self-popped up flaps, and nanosecond DBD plasma actuators near flapshave shown improvements in lift, drag reduction, and stall delay. The use of variable geometry miniflaps (VGMF) has been particularly promising, enabling increased lift and reduced drag, especially for sailplanes with high wing loading. These findings collectively suggest that incorporating innovative flap technologies can significantly enhance the performance of sailplanes by optimizing aerodynamic efficiency, extending flight envelopes, and improving lift-to-drag ratios.How does the stroke plane angle affect the efficiency of a flapping flight system?

The stroke plane angle significantly influences the efficiency of a flapping flight system. Varying the stroke plane inclination angle affects aerodynamic performance, energy consumption, and wing flow structures. Optimizing the pitch angle kinematics in hover can maximize lift and hovering efficiency, with different profiles impacting force production and power requirements. Asymmetric deviation in stroke patterns can enhance lift generation but may slightly reduce efficiency, especially in cases with high stroke amplitude or low pitching amplitude. Inclined stroke planes near the ground alter vertical force generation, with dipole jet patterns serving as a tool for assessing kinematics and lift modification in micro aerial vehicles. Overall, the stroke plane angle plays a crucial role in determining the efficiency and performance of flapping flight systems.How does the stroke plane angle and pitching angle affect the efficiency of a flapping flight system?

The stroke plane angle and pitching angle significantly impact the efficiency of a flapping flight system. Optimizing the pitch angle kinematics can maximize lift and hovering efficiency, with trapezoidal shapes and high average angles of attack yielding strong leading-edge vortices for increased force production. Additionally, asymmetric deviation in stroke patterns can enhance lift generation but may come with a slight reduction in efficiency and increased power cost, especially in cases with high stroke amplitude or low pitching amplitude. Furthermore, varying the translation plane inclination angle can affect aerodynamic performance, energy consumption, and wing flow structures, showcasing the intricate relationship between kinematic parameters and system efficiency.In a flapping flight system, what's the influence of pitching angle and storke-plane angle?

Pitching angle and stroke-plane angle play crucial roles in the aerodynamics of flapping flight systems. Research indicates that varying the pitching phase angle affects lift generation, with advanced pitching enhancing lift and lift/drag ratio, while delayed pitching reduces lift and overall lift/drag ratio. Additionally, pitching motion influences the bursting location of vortices over delta wings, altering the vortical flow structure significantly. Moreover, in a pitching-flapping-perturbed revolving wing system, the effective angle of attack modulation can enhance lift despite a slight efficiency reduction, showcasing the importance of pitch-flap control for aerodynamic performance improvement. Furthermore, passive pitching angle variation in a flapping wing rotor system leads to over 100% higher average lift and improved aerodynamic efficiency compared to constant pitching angles, demonstrating the positive impact of pitching angle variation on lift production and efficiency enhancement.