Results 61 to 70 of about 232,421 (213)

Development of algorithm based on the fractional time step for the simulation of cavitation. [PDF]

, 2013
Cavitation is one of the most demanding physical phenomena influencing the performance of hydraulic machines. It is therefore important to predict correctly its inception and development appearance, and quantify the performance losses associated with it.
AUDEBERT, Bruno, CHEBLI, Rezki, COUTIER-DELGOSHA, Olivier   +2 more
core  

Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance

Droplet, EarlyView.
Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin, Zhengyang Liu, Sunghwan Jung   +2 more
wiley   +1 more source

Research on the cavitation characteristics and disinfection performance optimization of a rotor-radial groove hydrodynamic cavitation reactor

Results in Engineering
Rotary hydrodynamic cavitation reactor is widely used in the field of water treatment because of its excellent cavitation performance. A new type of arc rotor is presented in this paper.
Lei Wang, Sitong Guan, Chi Zhang, Yongxing Song, Yi Ge, Linhua Zhang, Jingting Liu, Weibin Zhang   +7 more
doaj   +1 more source

Experimental Study of Pathogenic Microorganisms Inactivated by Venturi-Type Hydrodynamic Cavitation with Different Throat Lengths

Journal of the Civil Engineering Forum, 2018
Based on self-developed Venturi-type hydrodynamic cavitation device with different throat length-radius ratios L/R in Hydraulics Laboratory at Zhejiang University of Technology in China, 4 throat length-radius ratios L/R=10, 30, 60 and 100, and 4 raw ...
Zhiyong Dong, Zhaoyu Qin
doaj   +1 more source

Photothermal bubble: Dynamics, manipulation, and applications

Droplet, EarlyView.
As a versatile platform for bubble manipulation, photothermal techniques empower diverse operations: planar translation by scanning the laser spot, sustained periodic bouncing from competing thermal and hydrodynamic flows, and even guided 3D trajectories achieved by tailoring the heating configuration.
Man Hu, Feng Wang, Daosheng Deng
wiley   +1 more source

An Experimentally Validated Cavitation Model for Hydrodynamic Bearings Using Non-Condensable Gas

Lubricants
Despite great research effort in recent decades, cavitation in hydrodynamic journal bearings is still a not completely understood phenomenon. In particular, it is unclear which proportions of different cavitation types are present in a bearing.
Sören Wettmarshausen, Alexander Engels, Thomas Hagemann, Michael Stottrop, Christoph Weißbacher, Hubert Schwarze, Beate Bender   +6 more
doaj   +1 more source

Ultrasound‐assisted recirculation extraction as an innovative approach for obtaining bioactive compounds from grape pomace

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Grape pomace, a by‐product generated during winemaking, still retains bioactive compounds with potential applications in the food, pharmaceutical and nutraceutical sectors. This work investigated ultrasound‐assisted extraction (UAE) coupled with a recirculation system as a strategy to improve their recovery.
Jailton Ribeiro Dos Santos Junior, Luiz Carlos Corrêa‐Filho, Dayvison Mendes Moreira, Renata Valeriano Tonon, Lourdes Maria Correa Cabral   +4 more
wiley   +1 more source

Cavitation suppression in hydrodynamic systems via hydrogel coatings

Cell Reports Physical Science
Summary: Cavitation is an undesirable phenomenon in hydrodynamic systems, leading to surface erosion, efficiency degradation, and intense acoustic emissions.
Siyang Li, Zhe Wang, Shi-Han Ngo, Tong Chen, Langsheng Chen, Yifeng Shen, Zhikun Miao, Hui Yuan, Tao Feng, Yaoting Xue, Kai-Yi Lim, Qingqing Ye, Tuck-Whye Wong, Tiefeng Li, Xuxu Yang, Wei Yang   +15 more
doaj   +1 more source

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo, Liukai Hou, Yutao Zou, Kaiyuan Hao, Guangwu Zhou   +4 more
wiley   +1 more source

Intelligent Continuum Micromachines in Complex Confined Spaces

SmartBot, EarlyView.
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai, Yunyue Yang, Shuxing Xu, Jinbo Hu, Jiliang Wang, Zhehao Gan, Wei Tang, Tian‐Yun Huang   +7 more
wiley   +1 more source