Results 41 to 50 of about 756 (206)

Simulation-based Evaluation of a Cephalofoil-inspired Bow for Low Speed Passive Manoeuvrability of Torpedo-class Autonomous Underwater Vehicles [PDF]

Journal of Applied Fluid Mechanics
Torpedo shaped autonomous underwater vehicles (AUVs) displays poor hydrodynamic efficiency at low crusing speeds, resulting in endurance and mission effectiveness.
D. Namasivayam, P. B Ganesan, C. W. Tong, R. Müller, F. Hamad, M. Tripathi   +5 more
doaj   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

Advanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source

Active Flow Control Techniques: Classification, Analysis, and Future Trends for Automotive Applications

Fluids
Active flow control represents a key enabling technology for advancing aerodynamic performance, offering significant potential improvements in drag reduction, lift enhancement, and overall efficiency.
Marco Robert Herberg, Stefano De Pinto, Marco Donato de Tullio, Giuseppe Pascazio   +3 more
doaj   +1 more source

A Numerical Study of Aerodynamic Performance and Noise of a Bionic Airfoil Based on Owl Wing

Advances in Mechanical Engineering, 2014
Noise reduction and efficiency enhancement are the two important directions in the development of the multiblade centrifugal fan. In this study, we attempt to develop a bionic airfoil based on the owl wing and investigate its aerodynamic performance and ...
Xiaomin Liu, Xiang Liu
doaj   +1 more source

On–Off Switchable Micromotors for Use in Steerable Microvehicles

Advanced Robotics Research, EarlyView.
Electrically controllable micromotors and microvehicles are developed by tuning the diffusion of the fuel. Self‐propelled micromotors using bubble propulsion show great promise for miniaturized devices with multiuse purposes such as cargo delivery and sensing. However, there is currently no method to electrically switch the micromotors on or off. Here,
Hugo Severinsson, Eswaran Murugasen, Jose G. Martinez, Edwin W. H. Jager   +3 more
wiley   +1 more source

Improving the Efficiency of Fixed-Wing Unmanned Aerial Vehicle Through the Enhancement of Aerodynamic and Mechanical Structures

Applied Sciences
This paper presents a comprehensive study aimed at improving the efficiency of unmanned aerial vehicles (UAVs) through the enhancement of their aerodynamic and mechanical structures. The research is based on coupled computational fluid dynamics (CFD) and
Askar Abdykadyrov, Serikbek Ibekeyev, Azhar Analiyeva, Aliya Izbairova, Zhanar Altayeva, Aidana Torekul, Kyrmyzy Taissariyeva, Gulnar Imasheva, Asel Abdullaeva, Nurlan Kystaubayev   +9 more
doaj   +1 more source

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

Aerodynamics of Corrugated Wings: Past, Present, and Future

Aerospace
This paper provides a detailed review of the evolution and development of corrugated wings, a biomimetic concept that is very effective under low Reynolds number flights.
Eduards Lurans, Almajd Alhinai, Harish Viswanathan   +2 more
doaj   +1 more source

Accelerated micropolar fluid–flow past an uniformly rotating circular cylinder

AIP Advances, 2016
In this paper, we formulated the non-steady flow due to the uniformly accelerated and rotating circular cylinder from rest in a stationary, viscous, incompressible and micropolar fluid.
Abuzar Abid Siddiqui
doaj   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source