Results 51 to 60 of about 5,312,570 (354)

Experimental calibration and validation of sewer/surface flow exchange equations in steady and unsteady flow conditions

open access: yes, 2017
The linkage between sewer pipe flow and floodplain flow is recognised to induce an important source of uncertainty within two-dimensional (2D) urban flood models.
M. Rubinato   +5 more
semanticscholar   +1 more source

Magnetic Droplet Manipulation on Open Surfaces

open access: yesAdvanced 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

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

open access: yesAerospace
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

Genetic Algorithm Based Optimization of Wing Rotation in Hover

open access: yesFluids, 2018
The pitching kinematics of an experimental hovering flapping wing setup are optimized by means of a genetic algorithm. The pitching kinematics of the setup are parameterized with seven degrees of freedom to allow for complex non-linear and non-harmonic ...
Alexander Gehrke   +2 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced 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   +4 more
wiley   +1 more source

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

open access: yesApplied 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 study of the switching mechanism of a jet valve using the meshless method

open access: yesAdvances in Mechanical Engineering, 2021
This study numerically investigates fluid dynamics of a jet flow at supersonic speed. The meshless method and the overlapping point cloud method are used to handle the moving boundary problems.
Jun Zhang   +4 more
doaj   +1 more source

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

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

open access: yesAerospace, 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

Assessment methods for unsteady flow distortion in aero-engine intakes

open access: yes, 2018
Peak events of unsteady total pressure and swirl distortion generated within S-duct intakes can affect the engine stability, even when within acceptable mean distortion levels.
Daniel Gil-Prieto   +3 more
semanticscholar   +1 more source

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