On the Pressure Developed in a Liquid During the Collapse of a Spherical Cavity (1917)
01 Jan 1970-pp 221-226
About: The article was published on 1970-01-01. It has received 437 citations till now. The article focuses on the topics: Collapse (topology).
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01 Oct 2013TL;DR: In this paper, the fundamental physical processes involved in bubble dynamics and the phenomenon of cavitation are described and explained, and a review of the free streamline methods used to treat separated cavity flows with large attached cavities is provided.
Abstract: This book describes and explains the fundamental physical processes involved in bubble dynamics and the phenomenon of cavitation. It is intended as a combination of a reference book for those scientists and engineers who work with cavitation or bubble dynamics and as a monograph for advanced students interested in some of the basic problems associated with this category of multiphase flows. A basic knowledge of fluid flow and heat transfer is assumed but otherwise the analytical methods presented are developed from basic principles.
The book begins with a chapter on nucleation and describes both the theory and observations of nucleation in flowing and non-flowing systems. The following three chapters provide a systematic treatment of the dynamics of the growth, collapse or oscillation of individual bubbles in otherwise quiescent liquids. Chapter 4 summarizes the state of knowledge of the motion of bubbles in liquids. Chapter 5 describes some of the phenomena which occur in homogeneous bubbly flows with particular emphasis on cloud cavitation and this is followed by a chapter summarizing some of the experiemntal observations of cavitating flows. The last chapter provides a review of the free streamline methods used to treat separated cavity flows with large attached cavities.
2,994 citations
TL;DR: In this paper, a front-tracking method for multiphase flows is presented, which is based on writing one set of governing equations for the whole computational domain and treating the different phases as one fluid with variable material properties.
2,011 citations
Cites background from "On the Pressure Developed in a Liqu..."
...Analytical results are limited to spherical vapor bubbles (for example, Rayleigh, [97], Plesset and Zwick [90], and Prosperetti and Plesset [93]), simple one-dimensional problems (see Eckert and Drake [22]), and stability analysis (Prosperetti and Plesset [94])....
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...Lord Rayleigh, On the pressure developed in a liquid during the collapse of a spherical cavity,Philos....
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TL;DR: In this paper, the authors summarize the formation reactions of the hydroxyl radical (·OH) and the mechanisms of pollutants degradation in six types of advanced oxidation processes, including radiation, photolysis and photocatalysis, sonolysis, electrochemical oxidation technologies, Fenton based reactions, and ozone-based processes.
Abstract: Advanced oxidation processes (AOPs), defined as those technologies that utilize the hydroxyl radical (·OH) for oxidation, have received increasing attention in the research and development of wastewater treatment technologies in the last decades. These processes have been applied successfully for the removal or degradation of toxic pollutants or used as pretreatment to convert recalcitrant pollutants into biodegradable compounds that can then be treated by conventional biological methods. The efficacy of AOPs depends on the generation of reactive free radicals, the most important of which is the hydroxyl radical (·OH). The authors summarize the formation reactions of ·OH and the mechanisms of pollutants degradation. They cover six types of advanced oxidation processes, including radiation, photolysis and photocatalysis, sonolysis, electrochemical oxidation technologies, Fenton-based reactions, and ozone-based processes. Controversial issues in pollutants degradation mechanism were discussed. They review t...
1,102 citations
Cites background from "On the Pressure Developed in a Liqu..."
...…that the collapse is so rapid that the compression of the gas and vapor inside the bubble is adiabatic (Adewuyi, 2001; Adewuyi, 2005a; Chowdhury and Viraraghavan, 2009; Gogate, 2008; Ince et al., 2001; Ley and Low, 1989; Noltingk and Neppiras, 1950; Rayleigh, 1917; Serpone and Colarusso, 1994)....
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...For detailed information of cavitation formation, readers are requested to refer to the earlier references (Adewuyi, 2001; Chowdhury and Viraraghavan, 2009; Ince et al., 2001; Noltingk and Neppiras, 1950; Rayleigh, 1917; Serpone and Colarusso, 1994)....
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TL;DR: Unscreened surface charge of LSPC-synthesized colloids is the key to achieving colloidal stability and high affinity to biomolecules as well as support materials, thereby enabling the fabrication of bioconjugates and heterogeneous catalysts.
Abstract: Driven by functionality and purity demand for applications of inorganic nanoparticle colloids in optics, biology, and energy, their surface chemistry has become a topic of intensive research interest. Consequently, ligand-free colloids are ideal reference materials for evaluating the effects of surface adsorbates from the initial state for application-oriented nanointegration purposes. After two decades of development, laser synthesis and processing of colloids (LSPC) has emerged as a convenient and scalable technique for the synthesis of ligand-free nanomaterials in sealed environments. In addition to the high-purity surface of LSPC-generated nanoparticles, other strengths of LSPC include its high throughput, convenience for preparing alloys or series of doped nanomaterials, and its continuous operation mode, suitable for downstream processing. Unscreened surface charge of LSPC-synthesized colloids is the key to achieving colloidal stability and high affinity to biomolecules as well as support materials,...
892 citations
TL;DR: A review of single-bubble sonoluminescence can be found in this article, where the authors survey the major areas of research in this field and present an overview of what is known and outlines some directions for future research.
Abstract: Single-bubble sonoluminescence occurs when an acoustically trapped and periodically driven gas bubble collapses so strongly that the energy focusing at collapse leads to light emission. Detailed experiments have demonstrated the unique properties of this system: the spectrum of the emitted light tends to peak in the ultraviolet and depends strongly on the type of gas dissolved in the liquid; small amounts of trace noble gases or other impurities can dramatically change the amount of light emission, which is also affected by small changes in other operating parameters (mainly forcing pressure, dissolved gas concentration, and liquid temperature). This article reviews experimental and theoretical efforts to understand this phenomenon. The currently available information favors a description of sonoluminescence caused by adiabatic heating of the bubble at collapse, leading to partial ionization of the gas inside the bubble and to thermal emission such as bremsstrahlung. After a brief historical review, the authors survey the major areas of research: Section II describes the classical theory of bubble dynamics, as developed by Rayleigh, Plesset, Prosperetti, and others, while Sec. III describes research on the gas dynamics inside the bubble. Shock waves inside the bubble do not seem to play a prominent role in the process. Section IV discusses the hydrodynamic and chemical stability of the bubble. Stable single-bubble sonoluminescence requires that the bubble be shape stable and diffusively stable, and, together with an energy focusing condition, this fixes the parameter space where light emission occurs. Section V describes experiments and models addressing the origin of the light emission. The final section presents an overview of what is known, and outlines some directions for future research.
843 citations
Cites methods from "On the Pressure Developed in a Liqu..."
...This idea about heat transfer is based on a more careful version of this argument by Kamath et al. (1993) and Prosperetti et al....
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