Relevant bibliographies by topics / Cavitation clouds

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Cavitation clouds'

Author: Grafiati
Published: 1 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Cavitation clouds"

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Onishi, Taihei, Kaizheng Li, Hong Ji, and Guoyi Peng. "Shedding of Cavitation Clouds in an Orifice Nozzle." Fluids 9, no. 7 (2024): 156. http://dx.doi.org/10.3390/fluids9070156.

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Focused on the unsteady property of a cavitating water jet issuing from an orifice nozzle in a submerged condition, this paper presents a fundamental investigation of the periodicity of cloud shedding and the mechanism of cavitation cloud formation and release by combining the use of high-speed camera observation and flow simulation methods. The pattern of cavitation cloud shedding is evaluated by analyzing sequence images from a high-speed camera, and the mechanism of cloud formation and release is further examined by comparing the results of flow visualization and numerical simulation. It is
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Ahn, Byoung-Kwon, So-Won Jeong, Cheol-Soo Park, and Gun-Do Kim. "An Experimental Investigation of Coherent Structures and Induced Noise Characteristics of the Partial Cavitating Flow on a Two-Dimensional Hydrofoil." Fluids 5, no. 4 (2020): 198. http://dx.doi.org/10.3390/fluids5040198.

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In many practical submerged objects, various types of cavitation such as bubble, sheet, and cloud cavitation occur according to flow conditions. In spite of numerous theoretical, numerical, and experimental studies, there are still many problems to be solved such as induced noise and damage potential due to cavitation. In this paper, an experimental investigation on coherent structures and induced noise characteristics of partial cavitation on a two-dimensional hydrofoil is presented. Experiments that focused on the dynamics of cavitation clouds were conducted in a cavitation tunnel. Using hig
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Li, Lidong, Yan Xu, Mingming Ge, Zunce Wang, Sen Li, and Jinglong Zhang. "Numerical Investigation of Cavitating Jet Flow Field with Different Turbulence Models." Mathematics 11, no. 18 (2023): 3977. http://dx.doi.org/10.3390/math11183977.

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In numerous industries such as drilling, peening, cleaning, etc., a cavitating jet is adopted. However, it is challenging to simulate the cavitating flow field numerically with accuracy. The flow field of the organ pipe cavitation nozzle is simulated in this research using the RNG k−ε, DES, and LES turbulence models. The LES model can more accurately predict the periodic shedding of a cavitating cloud, which is basically consistent with the jet morphology captured with a high−speed camera. The flow pattern, cavitating cloud evolution and shedding period of a cavitating jet are analyzed. The fi
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Wang, Hao, Jian Feng, Keyang Liu, et al. "Experimental Study on Unsteady Cavitating Flow and Its Instability in Liquid Rocket Engine Inducer." Journal of Marine Science and Engineering 10, no. 6 (2022): 806. http://dx.doi.org/10.3390/jmse10060806.

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To study instability in the unsteady cavitating flow in a liquid rocket engine inducer, visualization experiments of non-cavitating and cavitating flows inside a model inducer were carried out at different flow conditions. Visual experiments were carried out to capture the evolution of non-cavitating and cavitating flows in a three-bladed inducer by using a high-speed camera. The external characteristic performance, cavitation performance, and pressure pulsation were analyzed based on the observation of non-cavitation and cavitation development and their instabilities. Under non-cavitation con
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Yuan, Miao, Yong Kang, Hanqing Shi, Dezheng Li, and Hongchao Li. "Experimental Investigation on the Characteristic of Hydrodynamic-Acoustic Cavitation (HAC)." Journal of Marine Science and Engineering 10, no. 3 (2022): 309. http://dx.doi.org/10.3390/jmse10030309.

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This study aimed to investigate the Cavitation dynamics of Hydrodynamic-acoustic cavitation by employing experimental methods. The spatial distribution of cavitation clouds, the temporal and spatial distribution achieved by cavitation clouds, and the main flow structure in the flow field were extracted and analyzed by complying with the cavitating flow image captured with the high-speed camera. As indicated from the results, the widened cavitation region and the strength of cavitation under the synergy of ultrasound were reported. When the inlet pressure is 2 MPa, the average value of the volu
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Mukai, T., M. Nakazono, T. Hashidate, T. Uchida, K. Tezuka, and J. Matsui. "Chain-reaction collapse of cavitation clouds in Francis turbine runner during start-up." IOP Conference Series: Earth and Environmental Science 1411, no. 1 (2024): 012002. https://doi.org/10.1088/1755-1315/1411/1/012002.

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Abstract This paper elucidates the hydrodynamic generation mechanism of the extraordinary stress in Francis turbine runner that occurs during start-up, which is called “Hydro Drum”, by unsteady CFD analysis with a cavitation model and model test. The analysis results revealed the pressure wave generated by the collapse of one cavitation cloud caused the collapse of other cavitation clouds. In addition, the magnitude of the pressure wave generated by collapse of the cavitation cloud resulting from the chain-reaction was much larger than that of the cavitation cloud that triggered the chain-reac
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Peng, Guoyi, and Taihei Onishi. "Numerical simulation of unsteady cloud cavitation in an orifice nozzle by a compressible gas-vapor/liquid mixture cavitation model." Journal of Physics: Conference Series 2854, no. 1 (2024): 012094. http://dx.doi.org/10.1088/1742-6596/2854/1/012094.

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Abstract Focused on the behaviour of unsteady cloud cavitation in a submerged orifice nozzle, this work presents a numerical investigation by using a compressible gas-vapor/liquid mixture cavitation model. The mean flow of the two-phase mixture is calculated by URANS for compressible fluid and the intensity of cavitation is evaluated by the gas volumetric void fraction considering the effect of fluid compressibility varying with phase change. Water jets issuing from a submerged orifice nozzle are investigated under different cavitation conditions. Computation results are compared with experime
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REISMAN, G. E., Y. C. WANG, and C. E. BRENNEN. "Observations of shock waves in cloud cavitation." Journal of Fluid Mechanics 355 (January 25, 1998): 255–83. http://dx.doi.org/10.1017/s0022112097007830.

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This paper describes an investigation of the dynamics and acoustics of cloud cavitation, the structures which are often formed by the periodic breakup and collapse of a sheet or vortex cavity. This form of cavitation frequently causes severe noise and damage, though the precise mechanism responsible for the enhancement of these adverse effects is not fully understood. In this paper, we investigate the large impulsive surface pressures generated by this type of cavitation and correlate these with the images from high-speed motion pictures. This reveals that several types of propagating structur
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Simon, Alex, Connor Edsall, and Eli Vlaisavljevich. "Effects of pulse repetition frequency on bubble cloud characteristics and ablation for single-cycle histotripsy." Journal of the Acoustical Society of America 152, no. 4 (2022): A247. http://dx.doi.org/10.1121/10.0016161.

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Histotripsy is a cavitation-based focused ultrasound ablation method in development for multiple clinical applications. This work investigates the effects of pulse repetition frequency (PRF) on histotripsy bubble cloud characteristics and ablative capabilities for single cycle histotripsy. Bubble clouds produced by a 500 kHz histotripsy system at PRF’s from 0.1 to 1000 Hz were visualized using high speed imaging in 1% agarose phantoms. Cloud images were analyzed to determine bubble cloud density (bubbles/mm2) and pulse-to-pulse bubble correlation. Ablation was assessed through lesion analysis
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del Campo, David, R. Castilla, GA Raush, PJ Gamez-Montero, and E. Codina. "Pressure effects on the performance of external gear pumps under cavitation." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 16 (2014): 2925–37. http://dx.doi.org/10.1177/0954406214522990.

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The numerical analysis of an external gear pump with cavitation effects has been validated with experimental data obtained by applying Time-Resolved Particle Image Velocimetry. The effect of inlet and outlet pressure on volumetric efficiency has been studied numerically. First, the Particle Image Velocimetry method was used to analyze the two-dimensional velocity field in the middle plane of the suction chamber of the gear pump. The main improvement, with respect to previous similar analysis is the use of alginate micro particles as tracers. It is seen that the two-dimensional model is able to
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Dissertations / Theses on the topic "Cavitation clouds"

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Malan, Leon. "Direct numerical simulation of free-surface and interfacial flow using the VOF method : cavitating bubble clouds and phase change." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066555/document.

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La présente étude se fonde sur la méthode du volume de fluide (en anglais VOF pour Volume-of-Fluid), proposée à l'origine par Hirt et Nicols. L'objectif de la première partie de ce travail est l'étude hydrodynamique de la cavitation isotherme dans les grands nuages de bulles. Cette étude s'inscrit plus généralement dans un large effort de recherche en micro--écaillage mené par le CEA. Une méthode capable de traiter la présence de cavités de vapeur de volume variable ou encore de pores a été formulée et implémentée dans un code existant, PARIS. L'écoulement est idéalisé en supposant un liquide
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Sivadon, Audrey. "Contributions à l’imagerie passive de la cavitation ultrasonore : formation de voies adaptatives en 3D et extension spatiale de nuages de bulles." Electronic Thesis or Diss., Lyon 1, 2022. http://www.theses.fr/2022LYO10172.

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L’imagerie passive s’appuie sur des algorithmes de formation de voie qui nécessitent des sondes de grande ouverture pour offrir de bonnes résolutions axiales ; or, en imagerie passive 3D, les sondes matricielles actuellement commercialisées ne vérifient pas cette contrainte. De plus, ces sondes présentent un grand nombre d’éléments, ce qui rend leur utilisation particulièrement lourde. Ce travail de thèse porte sur l’étude et l’amélioration de l’imagerie passive de la cavitation en s’intéressant à deux aspects en particulier : (i) la mise en œuvre pratique et efficace de l’imagerie passive en
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Reisman, Garrett Erin Brennen Christopher E. "Dynamics, acoustics and control of cloud cavitation on hydrofoils /." Diss., Pasadena, Calif. : California Institute of Technology, 1997. http://resolver.caltech.edu/CaltechETD:etd-03302004-140539.

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Wright, Michael Marshall. "Cavitation of a Water Jet in Water." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3175.

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Cavitation is a phenomenon that occurs in liquids when the pressure drops below the vapor pressure of the liquid. Previous research has verified that cavitation bubble collapse is a dynamic and destructive process. An understanding of the behavior of cavitation is necessary to implement this destructive mechanism from an axisymmetric jet for underwater material removal. This work investigates the influence of jet pressure and nozzle diameter on the behavior of a cloud of cavitation bubbles generated by a submerged high-pressure water jet. First, this investigation is put into context with a co
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Geng, Linlin. "Numerical investigation and modelling of the unsteady behavior and erosion power of cloud cavitation." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/671490.

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Cloud cavitation is a unwanted phenomenon taking place in many hydraulic machines which damages the surfaces of the solid walls due to the erosive aggressiveness induced by the collapse process. Therefore, it is necessary to accurately predict the occurrence of cloud cavitation and quantify its erosion intensity to improve the design and to extend the life cycle of existing machines and systems. The application of numerical simulation (CFD) offers the opportunity to predict unsteady cavitation. For that, it is of paramount importance to investigate how to select the most appropriate models to
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Malan, Leon. "Direct numerical simulation of free-surface and interfacial flow using the VOF method: cavitating bubble clouds and phase change." Doctoral thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/27898.

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Direct Numerical Simulation of two-phase ow is used extensively for engineering research and fundamental fluid physics studies. This study is based on the Volume-Of-Fluid (VOF) method, originally created by Hirt and Nicols. This method has gained increased popularity, especially when geometric advection techniques are used coupled with a planar reconstruction of the interface. The focus of the first part of this work is to investigate the hydrodynamics of isothermal cavitation in large bubble clouds, which originated from a larger study of micro-spalling, conducted by the French CEA. A method
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Lyu, Xiuxiu [Verfasser], Xiangyu [Akademischer Betreuer] Hu, Xiangyu [Gutachter] Hu, Julija [Gutachter] Zavadlav, and Chaouki [Gutachter] Habchi. "Numerical Modeling and Simulation of Cavitation Bubble Cloud with a Lagrangian–Eulerian Approach / Xiuxiu Lyu ; Gutachter: Xiangyu Hu, Julija Zavadlav, Chaouki Habchi ; Betreuer: Xiangyu Hu." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1215837682/34.

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Zhang, Guangjian. "Etude expérimentale de la structure et de la dynamique des écoulements cavitants." Thesis, Paris, HESAM, 2020. http://www.theses.fr/2020HESAE050.

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La cavitation est un phénomène complexe impliquant un transfert de masse entre la phase liquide et vapeur à des températures presque constantes.Les processus physiques qui contrôlent les instabilités dans les écoulements cavitants ne sont pas encore compris, principalement en raison du manque de données expérimentales quantitatives sur les structures diphasiques et la dynamique à l'intérieur des zones de cavitation opaques. Dans cette thèse, la cavitation partielle développée dans de petits canaux convergents-divergents (Venturi) a été étudiée expérimentalement en détail pour élucider ces méca
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Wang, Yi-Chun. "Shock waves in bubbly cavitating flows. Part I. Shock waves in cloud cavitation. Part II. Bubbly cavitating flows through a converging-diverging nozzle." Thesis, 1996. https://thesis.library.caltech.edu/804/1/Wang_yc_1996.pdf.

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Two problems are considered in this thesis: the nonlinear dynamics of a cloud of cavitation bubbles, and bubbly cavitating flows in a converging-diverging nozzle. The focus of the first problem is to explore the characteristics of the growth and collapse of a spherical cloud of bubbles. The prototypical problem solved considers a finite cloud of nuclei that is exposed to a decrease in the ambient pressure which causes the cloud to cavitate. A subsequent pressure recovery then causes the cloud to collapse. This is typical of the transient behaviour exhibited by a bubble cloud as it passes a bod
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Reisman, Garrett Erin. "Dynamics, acoustics and control of cloud cavitation on hydrofoils." Thesis, 1997. https://thesis.library.caltech.edu/1201/1/Reismen_ge_1997.pdf.

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Cloud-cavitation, often formed by the breakdown and collapse of a sheet or vortex cavity, is responsible for severe cavitation noise and erosion damage. This thesis describes an experimental investigation of the dynamics and acoustics of cloud cavitation on a three dimensional hydrofoil and examines the injection of air as a means of noise suppression. Part one of this work examines the large amplitude impulsive pressures which were measured on the suction surface of an oscillating hydrofoil experiencing cloud cavitation and these pressure pulses are correlated with the observation of shock w
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Book chapters on the topic "Cavitation clouds"

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Hutli, E. A. F., and M. S. Nedeljkovic. "Formula for Upstream Pressure, Nozzle Geometry and Frequency Correlation in Shedding/Discharging Cavitation Clouds Determined by Visualization of Submerged Cavitating Jet." In New Trends in Fluid Mechanics Research. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-75995-9_58.

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De Lange, D. F., and G. J. De Bruin. "Sheet Cavitation and Cloud Cavitation, Re-Entrant Jet and Three-Dimensionality." In In Fascination of Fluid Dynamics. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4986-0_7.

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Chahine, Georges L., Chao-Tsung Hsiao, and Reni Raju. "Scaling of Cavitation Bubble Cloud Dynamics on Propellers." In Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8539-6_15.

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Yamamoto, Katsuhiro. "Investigation of Bubble Clouds in a Cavitating Jet." In Mathematical Fluid Dynamics, Present and Future. Springer Japan, 2016. http://dx.doi.org/10.1007/978-4-431-56457-7_12.

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de Lange, D. F., G. J. de Bruin, and L. van Wijngaarden. "Observations of cloud cavitation on a stationary 2D profile." In Fluid Mechanics and Its Applications. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-0938-3_22.

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Pelz, Peter F., Thomas Keil, and Gerhard Ludwig. "On the Kinematics of Sheet and Cloud Cavitation and Related Erosion." In Advanced Experimental and Numerical Techniques for Cavitation Erosion Prediction. Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-8539-6_9.

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Peng, Guoyi, Yasuyuki Oguma, and Seiji Shimizu. "Visualization Observation of Cavitation Cloud Shedding in a Submerged Water Jet." In Fluid-Structure-Sound Interactions and Control. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-48868-3_37.

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Petrov, N., and A. Schmidt. "Evolution of a Cloud of Cavitation Bubbles in a Disturbed Compressible Liquid: A Numerical Study." In 30th International Symposium on Shock Waves 2. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-44866-4_80.

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Chiekh, Maher Ben, Jean-Christophe Béra, Adrien Poizat, Claude Inserra, and Bruno Gilles. "Dynamics of a Cavitation Cloud Generated by Pulsed Focused Ultrasound: Study of the Re-initialization of the Cloud at a New Pulse." In Green Energy and Technology. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-8278-0_37.

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Wang, Changchang, Guoyu Wang, and Biao Huang. "Coherent Structures Analysis Across Cavity Interface in Cloud Cavitating Flows Using Different Vortex Identification Methods." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8955-1_27.

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Conference papers on the topic "Cavitation clouds"

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Sou, Akira, Shinichi Nitta, and Tsuyoshi Nakajima. "Bubble Tracking Simulation of Cavitating Flow in an Atomization Nozzle." In ASME 2002 Joint U.S.-European Fluids Engineering Division Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/fedsm2002-31018.

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Numerical simulation of transient cavitating flow in a axisymmetric nozzle was conducted in order to investigate the detailed motion of cavitation bubble clouds which may be dominant to atomization of a liquid jet. Two-way coupled bubble tracking technique was assigned in the present study to predict the unsteady cloud cavitation phenomena. Large Eddy Simulation (LES) was used to predict turbulent flow. Calculated pressure distribution and injection pressure were compared with measured ones. Then, calculated motion of cavitation bubble clouds was carefully investigated to understand the cavita
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Sato, Keiichi, Naoya Takahashi, and Yasuhiro Sugimoto. "Effects of Diffuser Length on Cloud Cavitation in an Axisymmetrical Convergent-Divergent Nozzle." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-05507.

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Unsteady behavior of periodic cloud cavitation is typically observed in the field of fluid machinery under a high speed liquid flow such as a cavitating hydrofoil as well as cavitating water jet. The instability of cloud cavitation remains to be completely solved though it has been confirmed that there are two instabilities which is an intrinsic instability of cavitation and a system instability. Sato, et al. have found through previous investigations that the pressure wave at the collapse of shedding clouds can make a trigger to cause a reentrant motion. In the present study, the authors focu
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Hosangadi, A., and V. Ahuja. "A New Unsteady Model for Dense Cloud Cavitation." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77485.

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A new unsteady, cavitation model for dense cloud cavitation is presented wherein the phase change process (bubble growth/collapse) is coupled to the acoustic propagation in a multi-phase fluid. This cavitation model predicts the number density and radius of bubbles in vapor clouds by tracking both the aggregate surface area and volume fraction of the cloud. Hence, formulations for the dynamics of individual bubbles (e.g. Rayleigh-Plesset equation) may be integrated within the macroscopic context of a dense vapor cloud i.e. a cloud that occupies a significant fraction of available volume and co
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Ceccio, Steven L., and Darin L. George. "An Electrical Impedance Method for Measurements of Attached Cavitation." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0790.

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Abstract An electrical impedance probe is described which will be used to study the properties of attached cavitation. The method uses a series of electrodes mounted flush to the surface of a cavitating hydrofoil, and detects the presence of liquid or vapor through changes in the impedance of the local fluid medium. Characteristics of steady and unsteady attached cavitation, including cloud shedding and re-entrant jets, are reviewed. The impedance technique is shown to have the potential to measure advection velocities of bubble clouds, velocities of re-entrant jets, and frequencies associated
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Wosnik, Martin, Qiao Qin, Damien T. Kawakami, and Roger E. A. Arndt. "Large Eddy Simulation (LES) and Time-Resolved Particle Image Velocimetry (TR-PIV) in the Wake of a Cavitating Hydrofoil." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77467.

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A Large Eddy Simulation (LES) approach for cavitating flow, based on a virtual single-phase, fully compressible cavitation model which includes the effects of incondensable gas, has been shown to be capable of capturing the complex dynamical features of highly unsteady cavitating flows of two-dimensional hydrofoils. Here the LES results are compared to Time-Resolved Particle Image Velocimetry (TR-PIV) in the wake of a cavitating NACA 0015 hydrofoil, with particular attention to the predicted vortex shedding mechanisms. Despite some difficulty with obtaining vector fields from vortical clouds o
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Kawakami, Damien T., Qiao Qin, and Roger Arndt. "Water Quality and the Periodicity of Sheet/Cloud Cavitation." In ASME 2005 Fluids Engineering Division Summer Meeting. ASMEDC, 2005. http://dx.doi.org/10.1115/fedsm2005-77114.

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Cloud cavitation is the rapid formation and shedding of vaporous clouds from a cavitating hydrofoil. This type of cavitation occurs under certain conditions that are characterized by the cavitation number [σ] and the angle of attack [α]. Associated with cloud cavitation are large, abrupt changes in surface pressure caused by the shedding of the attached cavity. Our experimental data display trends that are contained in the linearized flat plate theories of Acosta and Tulin. Near values of σ/2α equal to 4, a singularity exists in the flat plate theory. Experimental results and numerical simulat
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D.Maxwell, Adam, and Zhen Xu. "Inception of Cavitation Microbubble Clouds in Tissue-Mimicking Media during Histotripsy." In 8th International Symposium on Cavitation. Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2826-7_269.

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Lu, Yuan, Joseph Katz, and Andrea Prosperetti. "Generation and Transport of Bubble Clouds in High-Intensity Focused Ultrasonic Fields." In 8th International Symposium on Cavitation. Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-2826-7_052.

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Maxwell, Adam D., Charles A. Cain, J. Brian Fowlkes, and Zhen Xu. "Inception of cavitation clouds by scattered shockwaves." In 2010 IEEE Ultrasonics Symposium (IUS). IEEE, 2010. http://dx.doi.org/10.1109/ultsym.2010.5935897.

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Ahuja, Vineet, and Ashvin Hosangadi. "Simulations of Cavitation in Orifice and Venturis." In ASME 2007 Pressure Vessels and Piping Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/pvp2007-26639.

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Computational simulations can play an integral role in supporting testing and developmental activities by identifying and characterizing flow instabilities. However, the diversity of flow regimes and instability mechanisms place very stringent requirements on any computational framework that could be used for such analyses. For example, the identification of dominant frequencies associated with flow instabilities in such systems requires high order numerics, advanced turbulence modeling capabilities, sophisticated grid topologies to resolve local physics in complex geometries, embedded models
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