Results 81 to 90 of about 6,989 (309)

Comparative Experimental Study on the De-Icing Performance of Multiple Actuators

Actuators
The issue of aircraft icing poses a substantial threat to flight safety. In order to investigate more efficient anti-icing and de-icing technologies, a comparative analysis was conducted on the de-icing characteristics of three types of actuator ...
Jiajun Zhang, Hua Liang, Biao Wei, Dongliang Bian, Shimin Liu, Hongrui Liu   +5 more
doaj   +1 more source

A direct numerical simulation of dielectric barrier discharge (DBD) plasma actuators for turbulent skin-friction control [PDF]

Turbulent skin-friction control is the subject of much research and the use of transverse (spanwise) oscillating motions offers the means of obtaining a significant reduction in skin-friction.
Elam, Dana
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Electrical Performance Evaluations for a Dielectric Barrier Discharge Plasma Actuator [PDF]

, 2010
Dielectric barrier discharge (DBD) plasma actuator requires an operating voltage of several kilovolts. However, during the experiment, charge accumulated on the surface of the DBD plasma actuator can reduce the electric field at the location of a ...
Andrew Ragai, Henry Rigit, Lai, Koon Chun, Bong, David B L   +2 more
core   +1 more source

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

Advanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik, Fedor Kovalev, Michal Zawierta, Dilusha Silva, Lorenzo Faraone, Ilya Shadrivov, Mariusz Martyniuk   +6 more
wiley   +1 more source

Experimental Study of Plasma Actuator Effects on Flow Field Separation Bubble around Blunt Flat Plate

Journal of Applied Fluid Mechanics, 2016
In this paper, the air flow around a blunt flat plate with a rounded leading edge has been experimentally examined with and without the presence of a plasma actuator. Tests have been conducted with Reynolds numbers ranging from 104 to 105.
Saeed Kavousfar, E. Esmaeilzadeh, hossein mahdavy moghaddam, S. G. Pouryoussefi, M. Mirzaei   +4 more
doaj  

Sounding Rocket Roll Control Through DBD Plasma Actuator Boundary Layer Control [PDF]

, 2018
Dielectric Barrier Discharge (DBD) plasma actuators alter the velocity of the air across control surfaces. The induced flow, directed tangential to the surface, inputs momentum to the boundary layer. This analysis examines the feasibility of a simplified
Sumanik, Spencer
core   +1 more source

Morphology‐Driven Electromechanical Performance of Graphene‐Based Electrofluids for Emerging Soft Electronic Systems

Advanced Materials Technologies, EarlyView.
Here, two types of electronic components are presented: a strain sensor and a stable resistor. Electrofluids properties are tuned to match these behaviors by selecting the type of filler. We show that the morphology of the filler together with its oxygen content are the key parameters to create electrical and mechanical networks with distinct responses.
Dominik S. Schmidt, Paolo Fortugno, Claudia‐F. López‐Cámara, Hartmut Wiggers, Lola González‐García   +4 more
wiley   +1 more source

Experimental Study of the Flow Field around a Circular Cylinder Using Plasma Actuators

Journal of Applied Fluid Mechanics, 2015
In this paper different configurations of plasma actuator for controlling the flow around a circular cylinder made of Quartz were experimentally investigated.
Siavash Tabatabaeian, M. Mirzaei, Asghar Sadighzadeh, Vahid Damideh, Abdollah Shadaram   +4 more
doaj  

Multi-Spark Plasma Actuator for Flow Control [PDF]

, 2015
Plasma properties of spark discharge at multi-electrode actuator, designed for flow control, are discussed. Optical emission spectroscopy is used in investigation of such plasma.
Boretskij, V., Lebid, A., Fesenko, S., Veklich, A.   +3 more
core   +1 more source