Results 21 to 30 of about 135,816 (271)

Numerical analysis of fluid-material coupled method on propagation of pressure and stress waves during non-spherical bubble collapse

Nihon Kikai Gakkai ronbunshu, 2021
When analyzing cavitation erosion, it is necessary to grasp the stress state inside a material due to the bubble collapse process. In this study, the behavior of a vapor bubble collapse and the stress distribution inside the material due to the bubble ...
Hirotoshi SASAKI, Susumu ENDO, Yuka IGA
doaj   +1 more source

Numerical Investigation of the Effect of Bubble-Bubble Interaction on the Power of Propagated Pressure Waves [PDF]

Journal of Applied and Computational Mechanics, 2019
The study of bubble dynamics, especially the interaction of bubbles, has drawn considerable attention due to its various applications in engineering and science.
Masoud Khojasteh Manesh, Miralam Mahdi
doaj   +1 more source

Wall wettability effect on process of collapse of single cavitation bubbles in near-wall region using pseudo-potential lattice Boltzmann method

Heliyon, 2022
This study investigates the effect of wall wettability on cavitation collapse based on a large-density-ratio lattice Boltzmann method (LBM) pseudo-potential model.
Qian Yang, Xiaolong He, Haonan Peng, Jianmin Zhang   +3 more
doaj   +1 more source

Multi-Step Structural Optimization Design of Multi-Bubble Pressure Cabin in the Autonomous Underwater Vehicle with Blended-Wing-Body [PDF]

Xibei Gongye Daxue Xuebao, 2018
In this paper, multi-bubble pressure cabin is proposed for the flat fuselage of blended-wing-body(BWB) autonomous underwater vehicle(AUV). It has strong compressive capacity and makes full use of the fuselage space.

doaj   +1 more source

Simulation and analysis of collapsing vapor-bubble clusters with special emphasis on potentially erosive impact loads at walls [PDF]

EPJ Web of Conferences, 2018
Cavitation is a process where a liquid evaporates due to a pressure drop and re-condenses violently. Noise, material erosion and altered system dynamics characterize for such a process for which shock waves, rarefaction waves and vapor generation are ...
Ogloblina Daria, Schmidt Steffen J., Adams Nikolaus A.   +2 more
doaj   +2 more sources

Maximum entropy estimation of the bubble size distribution in fluidized beds [PDF]

, 2009
This work presents a new methodology, based on the maximum entropy method, to obtain bubble characteristics in fluidized beds. The probability distributions (PDF) of bubble pierced length and velocity are obtained applying the maximum entropy principle ...
Almendros Ibáñez, José Antonio, Santana Santana, Domingo José, Sobrino Fernández, Celia, Vega Blázquez, Mercedes de, Vázquez García, María Carmen   +4 more
core   +2 more sources

Measurements of in-vessel and ex-vessel liquid corium surface tension and density in the VITI-MBP test bench within ALISA Euro-Chinese project

Mechanical Engineering Journal, 2020
Within the ALISA (Access to Large Infrastructures for Severe Accidents) cooperation between the European Union and China on SA (Severe Accident) facilities, CNPRI (China Nuclear Power technology Research Institute) has proposed to CEA (Commissariat à l ...
Jules DELACROIX, Christophe JOURNEAU, Nourdine CHIKHI, Pascal FOUQUART, Dekui ZHAN   +4 more
doaj   +1 more source

Dynamic Surface Tension of Aqueous Solutions of Ionic Surfactants: Role of Electrostatics [PDF]

, 2010
The adsorption kinetics of the cationic surfactant dodecyltrimethylammonium bromide at the air-water interface has been studied by the maximum bubble pressure method at concentrations below the critical micellar concentration.
Andelman, David, Diamant, Haim, Langevin, Dominique, Ritacco, Hernan   +3 more
core   +2 more sources

Tensiometry as a Simple Analytical Method for Quantification of Solubility and Release of Aroma Molecules in Aqueous Media

Molecules, 2021
Dynamic tensiometry is shown to be a high-potential analytical tool in assessing physico-chemical characteristics of fragrance molecules, such as solubility limit, volatility as well as much rarely assessed interfacial activity of these amphiphilic ...
Ruth Kudla, Jochen S. Gutmann, Larisa A. Tsarkova   +2 more
doaj   +1 more source

Failure Mechanisms of Hollow Fiber Supported Ionic Liquid Membranes

Membranes, 2016
Hollow fiber supported ionic liquid membranes (SILMs) were tested using the bubble point method to investigate potential failure modes, including the maximum transmembrane pressure before loss of the ionic liquid from the support.
Matthew Zeh, Shan Wickramanayake, David Hopkinson   +2 more
doaj   +1 more source