Results 81 to 90 of about 7,956 (223)

Study of cavitation bubble collapse near a rigid boundary with a multi-relaxation-time pseudo-potential lattice Boltzmann method

AIP Advances, 2020
Due to the complex phase change and heat transfer processes, the mechanisms of cavitation bubble collapse near a rigid boundary are well recognized to be complicated.
Xiaolong He, Jianmin Zhang, Weilin Xu
doaj   +1 more source

Cavitation inception from bubble nuclei [PDF]

Interface Focus, 2015
Abstract The tensile strength of ordinary water such as tap water or seawater is typically well below 1 bar. It is governed by cavitation nuclei in the water, not by the tensile strength of the water itself, which is extremely high. Different models of the nuclei have been suggested over the years, and experimental investigations of ...
openaire   +2 more sources

Dynamics of cavitation bubbles in a liquid layer

Droplet, EarlyView.
The dynamics of cavitation bubbles within a liquid layer is studied experimentally. Due to the combined effect of the rigid wall and free surface, the bubbles exhibit a significant downward migration. The confinement effect of the rigid wall significantly affects the bubble's collapse morphology, leading to different post‐collapse phenomena of free ...
Jinzhao Liu, Tianyou Wang, Zhizhao Che
wiley   +1 more source

Experimental study of laser-induced bubble collapse near a rigid wall based on the double-exposure method [PDF]

International Journal of Fluid Engineering
Capturing and studying the process of cavitation bubble collapse can help elucidate the mechanism of cavitation erosion. In this paper, a high-spatiotemporal-resolution double-exposure photographic method is used to investigate the collapse of laser ...
Haigang Wen, Yurong Sun, Siyuan Geng, Zhifeng Yao, Qiang Zhong   +4 more
doaj   +1 more source

Recent Advances in Pickering Emulsion Templated Phase Change Material Microcapsules: Design, Fabrication, and Multifunctional Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li, Jinsheng Sun, Kaihe Lv, Chaozheng Liu, Meichun Li   +4 more
wiley   +1 more source

Investigation of incipient cavitation in various liquids based on PIV quantification and numerical simulations

Scientific Reports
This work experimentally and analytically investigated the incipient cavitation behavior in four liquids with different physical properties: ethanol, de-ionized water, glycerine, and aluminum melt under ultrasonic irradiation close to the cavitation ...
Jian Chen, Jiwei Geng, Yugang Li, Peikang Xia, Xianfeng Li, Fangming Wang, Dong Chen, Mingliang Wang, Haowei Wang   +8 more
doaj   +1 more source

Comparison of cavitation bubbles evolution in viscous media

EPJ Web of Conferences, 2018
There have been tried many types of liquids with different ranges of viscosity values that have been tested to form a single cavitation bubble. The purpose of these experiments was to observe the behaviour of cavitation bubbles in media with different ...
Jasikova Darina, Schovanec Petr, Kotek Michal, Kopecky Vaclav   +3 more
doaj   +1 more source

Numerical Investigation on the Cavitating Flow and the Cavitation-induced Noise in the Pump-jet Propeller [PDF]

Journal of Applied Fluid Mechanics
The noise hazard posed by cavitation in pump-jet propellers is a significant concern during oceanic operations. This study evaluates the cavitation performance and associated noise characteristics of pump-jet propellers in underwater conditions, further ...
P. Zhang, J. Yuan, Y. Fu, X. Hou, J. Hao
doaj   +1 more source

Multi‐Energy‐Driven Photocatalysis: Mechanism, Progress, and Perspective

Exploration, EarlyView.
Photocatalysis technology can be utilized in water splitting, carbon dioxide reduction, pollutant degradation, and chemical synthesis. Introducing external energy fields, including thermal energy, electrical energy, magnetic energy, mechanical energy, and microwave energy, has been considered as a promising method to improve photocatalytic performance ...
Liangcheng Xu, Xinrong Zhang, Duan Yu, Yingjuan Zhang, Jung‐Ho Yun, Songcan Wang   +5 more
wiley   +1 more source

New insights on the cavitation development and the role of bubbles in Micro-Venturi channels

Ultrasonics Sonochemistry
This study investigates hydrodynamic cavitation (HC) inception and development in micro-Venturi channels, focusing on the mechanism that drives spatially irregular cavitation events. The study reveals that cavitation regeneration is primarily governed by
Mohammadamin Maleki, Abhinav Priyadarshi, Jolyon Cleaves, Erçil Toyran, Ali Kosar, Iakovos Tzanakis, Morteza Ghorbani   +6 more
doaj   +1 more source