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We numerically investigate the effect of non-condensable gas inside a vapor bubble on bubble dynamics, collapse pressure and pressure impact of spherical and aspherical bubble collapses. Free gas inside a vapor bubble has a damping effect…

流体动力学 · 物理学 2021-10-04 Theresa Trummler , Steffen J. Schmidt , Nikolaus A. Adams

In this report, an analytic model to predict phase transitions of confined fluids in nano systems is presented and it is used to predict the behavior of the confined fluid in nanotubes and nanoslits. In our approach besides including a…

介观与纳米尺度物理 · 物理学 2018-04-02 T. Keshavarzi , R. Sohrabi , G. A. Mansoori

This paper theoretically analyzes the hydrodynamic shape stability problem for sonoluminescing bubbles. We present a semianalytical approach to describe the evolution of shape perturbations in the strongly nonlinear regime of violent…

流体动力学 · 物理学 2009-11-06 Vladislav A. Bogoyavlenskiy

We examine statics and dynamics of phase-separated states of dilute binary mixtures using density functional theory. In our systems, the difference in the salvation chemical potential $\Delta\mu_s$ between liquid and gas is considerably…

软凝聚态物质 · 物理学 2016-05-13 Ryuichi Okamoto , Akira Onuki

In this work, we established a novel theory for the dynamics of oscillating bubbles such as cavitation bubbles, underwater explosion bubbles, and air bubbles. For the first time, we proposed bubble dynamics equations that can simultaneously…

流体动力学 · 物理学 2024-12-24 A-Man Zhang , Shi-Min Li , Pu Cui , Shuai Li , Yun-Long Liu

The composition of the gaseous phase of cavitation bubbles and its role on the collapse remains to date poorly understood. In this work, experiments of single cavitation bubbles in aqueous ammonia serve as a novel approach to investigate…

This article examines the Bouton-Lie group invariants of the Navier-Stokes equation (NSE) for incompressible fluids. Bouton's theory is applied to the general scaling transformation admitted by the NSE and is used to derive all self-similar…

综合数学 · 数学 2022-08-25 J. G. Polihronov

The inception of cavitation in multibubble cases is studied numerically and theoretically to show that it is different from that in single-bubble cases in several aspects. Using a multibubble model based on the Rayleigh-Plesset equation…

流体动力学 · 物理学 2009-11-30 Masato Ida

Three-dimensional direct numerical simulations (DNS) are used to revisit the experiments on multibubble cavitation performed by Bremond et al. (https://doi.org/10.1063/1.2396922, Phys. Fluids 18, 121505 (2006),…

流体动力学 · 物理学 2024-04-04 Mandeep Saini , Youssef Saade , Daniel Fuster , Detlef Lohse

Significant leaps in the understanding of quantum systems have been driven by the exploration of geometry, topology, dimensionality, and interactions with ultracold atomic ensembles. A system where atoms evolve while confined on an…

The recent NANOGrav finding of a common-spectrum process has invited interpretations as possible evidence of a primordial stochastic gravitational-wave background (SGWB) stronger than predicted by standard inflation+LCDM. Such an SGWB would…

宇宙学与河外天体物理 · 物理学 2021-10-14 Bohua Li , Paul R. Shapiro

This paper introduces an enhanced Classical Nucleation Theory model to predict the cavitation inception pressure and to describe the behavior of nanoscale gaseous nuclei during cavitation. Validation is achieved through molecular dynamics…

软凝聚态物质 · 物理学 2025-04-15 Mazyar Dawoodian , Ould el Moctar

In this paper, the size of bubbles formed through the breakup of a gaseous jet in a co-axial microfluidic device is derived. The gaseous jet surrounded by a co-flowing liquid stream breaks up into monodisperse microbubbles and the size of…

流体动力学 · 物理学 2011-06-08 Wim van Hoeve , Benjamin Dollet , José M. Gordillo , Michel Versluis , Detlef Lohse

The method for determination the microscopic surface tension $\sigma(R)$ of nanobubbles is developed based on the new elaboration of the positronium bubble model. In contrast to existing structureless Ps bubble models, our version contains…

化学物理 · 物理学 2007-05-23 Sergey V. Stepanov , Vsevolod M. Byakov , Olga P. Stepanova

We examine the problem of the collapse and fragmentation of molecular clouds with a Gaussian density distribution with high resolution, double precision numerical simulations using the GADGET-2 code. To describe the thermodynamic properties…

太阳与恒星天体物理 · 物理学 2026-02-27 F. Gomez-Ramirez , J. Klapp , Jorge L. Cervantes-Cota , G. Arreaga-Garcia , D. Bahena

We propose a low-dimensional modeling approach to simulate the dynamics, acoustic emissions and interactions of cavitation bubbles, based on a quasi-acoustic assumption. This quasi-acoustic assumption accounts for the compressibility of the…

流体动力学 · 物理学 2024-12-10 Pierre Coulombel , Fabian Denner

Laser ablation in liquid (LAL) is important perspective way to compose nanoparticles (NP) necessary for modern technologies. LAL is not fully understood. Deep understanding is necessary to optimize processes and decrease high price of the…

计算物理 · 物理学 2018-12-24 Yu. V. Petrov , V. A. Khokhlov , V. V. Zhakhovsky , N. A. Inogamov

A realization of the composite Higgs scenario in the context of the effective model with the $SU(2)_L\times U(1)_R$ symmetric four-Fermi interactions proposed by Miransky, Tanabashi and Yamawaki is studied. The model implements Nambu's…

高能物理 - 唯象学 · 物理学 2024-01-19 A. A. Osipov , B. Hiller , A. H. Blin , F. Palanca , J. Moreira , M. Sampaio

The Noble-Abel (NA) equation of state (EOS) is widely used in interior ballistics of guns as well as rocket propulsion computations. Its simplicity and accuracy are key points for intensive computations with hyperbolic two-phase flow models…

偏微分方程分析 · 数学 2024-06-19 Richard Saurel , Loann Neron

Using a self-similar approach a general nonsteady theory is elaborated for the case of the diffusion growth of a gas bubble in a supersaturated solution of gas in liquid. Due to the fact that the solution and the bubble in it are physically…

统计力学 · 物理学 2009-06-25 A. P. Grinin , F. M. Kuni , G. Yu. Gor