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相关论文: Phase Diagrams for Sonoluminescing Bubbles

200 篇论文

We investigate bubble deformations in an homogeneous and isotropic turbulent flow by means of direct numerical simulations of a single bubble in turbulence. We examine interface deformations by decomposing the local radius into the…

流体动力学 · 物理学 2024-07-24 Aliénor Rivière , Kamel Abahri , Stéphane Perrard

When a drop impacts a deep pool, it forms a crater which subsequently rebounds. Under certain conditions, a dimple forms at the crater bottom, which pinches off to entrap a small bubble. The oscillation of this entrapped bubble is the…

流体动力学 · 物理学 2025-12-11 Zi Qiang Yang , Yuan Si Tian , Er Qiang Li , Sigurður Tryggvi Thoroddsen

Compressible flow varies from ideal-gas behavior at high pressures where molecular interactions become important. Density is described through a cubic equation of state while enthalpy and sound speed are functions of both temperature and…

流体动力学 · 物理学 2020-03-11 William A. Sirignano

The two-photon correlation of the light pulse emitted from a sonoluminescence bubble is discussed. It is shown that several important information about the mechanism of light emission, such as the time-scale and the shape of the emission…

量子物理 · 物理学 2009-10-30 Y. Hama , T. Kodama , Sandra S. Padula

Gas bubble transport through highly porous transport layers (PTLs) is a key process in electrochemical devices such as proton exchange membrane water electrolyzers, where bubbles generated at catalyst surfaces must migrate through complex…

软凝聚态物质 · 物理学 2026-03-31 J. M. P. Beunen , T. Lappan , P. Malgaretti , O. Aouane , K. Eckert , J. Harting

A large linewidth of electronic transition of an electron trapped in a bubble ("bubblonium") possesses natural, or radiative, and inhomogeneous components. The latter mechanism of the line broadening requires dissipation. Dissipation of…

其他凝聚态物理 · 物理学 2012-03-28 Peter B. Lerner

We analyze the spatial and temporal resolving power of two-photon intensity interferometry for the light emitting source in single bubble sonoluminescence (SBSL). We show that bubble sizes between several 10 nm and 3 um can be resolved by…

量子物理 · 物理学 2009-10-09 Claus Slotta , Ulrich Heinz

We investigate sound wave propagation in a monatomic gas using a volume-based hydrodynamic model. In Physica A vol 387(24) (2008) pp6079-6094, a microscopic volume-based kinetic approach was proposed by analyzing molecular spatial…

流体动力学 · 物理学 2009-07-31 S. Kokou Dadzie , Jason M. Reese

We investigate the phase diagram of a fluid of hard-core disks confined to the surface of a sphere and whose interaction potential contains a short-range attraction followed by a long-range repulsive tail (SALR). Based on previous works in…

软凝聚态物质 · 物理学 2021-11-24 Stefano Franzini , Luciano Reatto , Davide Pini

The nonlinear propagation of large amplitude dust ion-acoustic (DIA) solitary waves (SWs) in an ion-beam plasma with stationary charged dusts is investigated. For typical plasma parameters relevant for experiments [J. Plasma Phys.…

等离子体物理 · 物理学 2011-12-30 A. P. Misra , N. C. Adhikary

The low-frequency modal and non-modal stability characteristics of an incompressible, pressure-gradient-induced turbulent separation bubble (TSB) are investigated with the objective of studying the mechanism responsible for the…

流体动力学 · 物理学 2024-11-20 C. Cura , A. Hanifi , A. V. G. Cavalieri , J. Weiss

Bubbles under vibration can behave in unusual ways, e.g., moving downward against the force of buoyancy. While the bubble downward motion due to the Bjerknes force is well known at acoustic frequencies close to the bubble resonant…

流体动力学 · 物理学 2015-05-30 Tim O'Hern , Bion Shelden , John Torczynski

The formation of patterns in driven systems has been studied extensively, and their emergence can be connected to a fine balance of instabilities and stabilization mechanisms. While the early phase of pattern formation can be understood on…

Buoyancy-driven bubbly flows play pivotal roles in various scenarios, such as the oxygenation and mixing in the upper ocean and the reaction kinetics in chemical and bio-reactors. This work focuses on the convective flow induced by the…

流体动力学 · 物理学 2023-12-19 Ron Shnapp , Markus Holzner

We argue that the available experimental data is not compatible with models of sonoluminescence which invoke dynamical properties of the interface without regard to the compositional properties of the trapped gas inside the bubble.

量子物理 · 物理学 2009-10-30 C. S. Unnikrishnan , Shomeek Mukhopadhyay

This work reports an experimental characterisation of the flow properties in a homogeneous bubble swarm rising at high-Reynolds-numbers within a homogeneous and isotropic turbulent flow. Both the gas volume fraction {\alpha} and the…

流体动力学 · 物理学 2017-10-11 Elise Almeras , Varghese Mathai , Detlef Lohse , Chao Sun

Simulation of a sonic black-hole/white-hole pair in a (2+1)-dimensional Bose-Einstein condensate shows formation of superfluid vortices through dynamical instabilities seeded by initial quantum noise. The instabilities saturate in a…

其他凝聚态物理 · 物理学 2017-05-12 R. Bürkle , A. Gaidoukov , J. R. Anglin

A study by W. R. Magro and D. M. Ceperley [Phys. Rev. Lett. {\bf 73}, 826 (1994)] has shown that the ground state of the two-dimensional fluid of charged bosons with logarithmic interactions is not Bose-condensed, but exhibits algebraic…

统计力学 · 物理学 2009-11-07 A. Minguzzi , B. Davoudi , M. P. Tosi

Flow and Diffusion Distributed Structures (FDS) are stationary spatially periodic patterns that can be observed in reaction-diffusion-advection systems. These structures arise when the flow rate exceeds a certain bifurcation point provided…

斑图形成与孤子 · 物理学 2007-11-19 Pavel V. Kuptsov , Razvan A. Satnoianu

This paper presents an enhancement to the free surface lattice Boltzmann method (FSLBM) for the simulation of bubbly flows including rupture and breakup of bubbles. The FSLBM uses a volume of fluid approach to reduce the problem of a…

计算物理 · 物理学 2016-04-07 Daniela Anderl , Simon Bogner , Cornelia Rauh , Ulrich Rüde , Antonio Delgado