Results 31 to 40 of about 31,802 (273)

Simulation of tail boom vibrations using main rotor-fuselage Computational Fluid Dynamics (CFD) [PDF]

, 2017
In this work, fully-resolved rotor-fuselage interactional aerodynamics is used as the forcing term in a model based on the Euler-Bernoulli equation, aiming to simulate helicopter tail-boom vibration.
Barakos, George N., Batrakov, Andrey, Kusyumov, Alexander, Kusyumov, Sergey, Kusyumov, Sergey   +4 more
core   +2 more sources

Numerical Investigation on the Effect of Blockage on the Icing of Airfoils

Aerospace, 2022
The blockage is one of the important factors affecting the icing of airfoils in wind tunnel tests. In this paper, numerical simulations are conducted to study the effect of blockage on the icing of different airfoils.
Daixiao Lu, Zhiliang Lu, Zhirong Han, Xian Xu, Ying Huang   +4 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Numerical Analysis of the Three-Dimensional Interaction Between Nanosecond-Pulsed Actuation and Pulsed H₂ Jets in Supersonic Crossflow

Aerospace
A combined flow control method, integrating nanosecond pulsed surface dielectric barrier discharge (NS-SDBD) with pulsed jets, is proposed to address the challenge of low mixing efficiency in supersonic combustion.
Keyu Li, Jiangfeng Wang, Yuxuan Gu
doaj   +1 more source

Calculation of AGARD Wing 445.6 Flutter Using Navier-Stokes Aerodynamics [PDF]

, 1993
An unsteady, 3D, implicit upwind Euler/Navier-Stokes algorithm is here used to compute the flutter characteristics of Wing 445.6, the AGARD standard aeroelastic configuration for dynamic response, with a view to the discrepancy between Euler ...
Anderson W. K., Anderson W. K., Baldwin B., Batina J. T., Bennett R.M., Cunningham H. J., Desmarais R. N., Edwards J. W., Equations, Johnson D., Lee-Rausch E. M., Mohr R. W., Obayashi S., Rausch D., Rausch R. D., Rausch R.D., Robinson B. A., Seidel D. A., Wings, Yang T. Y., Yates E. C., Yates E. C., Jr.   +21 more
core   +3 more sources

Enhancing the Ultrasonic Welding of Wood Using 3D Printed Lignin Energy Directors

Advanced Science, EarlyView.
Sustainable manufacturing for lightweight structures using ecofriendly materials will be key to reducing material consumption and lowering carbon footprints. Here, an approach is presented to weld wood using ultrasonic vibrations with material at the joint interface to direct energy.
Muhamad Amani, Kathrin Weiland, Mark Ablonczy, Natalia Sofia Guevara‐Sotelo, Ioannis Zygouris, Johan van Stuyvesant Meijen, Kunal Masania   +6 more
wiley   +1 more source

Numerical Method for Aeroelastic Simulation of Flexible Aircraft in High Maneuver Flight Based on Rigid–Flexible Model

Applied Sciences
Traditional elastic correction methods fail to address the significant aeroelastic interactions arising from unsteady flow fields and structural deformations during aggressive maneuvers.
Shuang Chen, Pengzhen He, Shuling Tian
doaj   +1 more source

Numerical Analysis of Unsteady Characteristics of the Second Throat of a Transonic Wind Tunnel

Aerospace, 2023
The unsteady characteristics of the second throat of a transonic wind tunnel have an important influence on the design and test of the wind tunnel. Therefore, the forced oscillation characteristics were studied by a numerical simulation method.
Chenghua Cong, Honggang Qin, Xingyou Yi
doaj   +1 more source

Rapid Steam‐Assisted Temperature Swing Adsorption for Direct Air Capture Using a Rotary Adsorber

Advanced Science, EarlyView.
This study presents a direct air capture (DAC) device based on a steam‐regeneration rotary adsorber for high‐purity CO2. Testing of the prototype demonstrates its capability for continuous and stable carbon capture with the potential to achieve ton‐scale.
Junye Wu, Yunhao Chen, Kuihua Wang, Yingjie Huo, Yanlin Chen, Quanwen Pan, Tianshu Ge   +6 more
wiley   +1 more source