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Sound attenuation in high mach number oscillating bubble media [PDF]

open access: yesUltrasonics Sonochemistry, 2023
We study theoretically and numerically sound attenuation in bubble-containing media when the bubbles are freely oscillating at high Mach numbers. This paper expands one of the main forms of bubble-related acoustic damping factors by extending the ...
Jiawen Yu, Desen Yang, Jiangyi Zhang
doaj   +2 more sources

A single oscillating bubble in liquids with high Mach number [PDF]

open access: yesUltrasonics Sonochemistry, 2022
The oscillation characteristics of a single bubble and its induced radiation pressure and the dissipated power are essential for a wide range of applications.
Xiaoxiao Zheng   +3 more
doaj   +2 more sources

Mach Number Dependence of Electron Heating in High Mach Number Quasiperpendicular Shocks [PDF]

open access: yesPhysics of Plasmas, 2010
Efficiency of electron heating through microinstabilities generated in the transition region of a quasi-perpendicular shock for wide ange of Mach numbers is investigated by utilizing PIC (Particle-In-Cell) simulation and model analyses.
Matsukiyo, Shuichi
core   +2 more sources

Quasiperpendicular high Mach number Shocks [PDF]

open access: yesPhysical Review Letters, 2015
Shock waves exist throughout the universe and are fundamental to understanding the nature of collisionless plasmas. Reformation is a process, driven by microphysics, which typically occurs at high Mach number supercritical shocks.
Burgess, D.   +5 more
core   +5 more sources

Low Mach number effect in simulation of high Mach number flow [PDF]

open access: yes, 2012
In this note, we relate the two well-known difficulties of Godunov schemes: the carbuncle phenomena in simulating high Mach number flow, and the inaccurate pressure profile in simulating low Mach number flow.
C.W. Shu   +17 more
core   +2 more sources

Wavelet Coherence Analysis of Plasma Beta, Alfven Mach Number, and Magnetosonic Mach Number during Different Geomagnetic Storms [PDF]

open access: yesThe Scientific World Journal
We study the variation in plasma beta, Alfven Mach number, and magnetosonic Mach number during different geomagnetic storms of solar cycles 23, 24, and 25.
Ashutosh Giri   +4 more
doaj   +2 more sources

An Effective AUSM-Type Scheme for Both Cases of Low Mach Number and High Mach Number

open access: yesApplied Sciences, 2022
A new scheme called AUSMAS (Advection Upstream Splitting Method for All Speeds) is proposed for both high speed and low speed simulation cases. For the cases of low speed, it controls the checkerboard decoupling by keeping the coefficient of the pressure
Nan Li, Feng Qu, Di Sun, Guanghui Wu
doaj   +2 more sources

Low Mach number flows, and combustion [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2005
We prove uniform existence results for the full Navier-Stokes equations for time intervals which are independent of the Mach number, the Reynolds number and the P\'eclet number.
Alazard, Thomas
core   +4 more sources

A low Mach number solver: Enhancing applicability [PDF]

open access: greenJournal of Computational Physics, 2012
In astrophysics and meteorology there exist numerous situations where flows exhibit small velocities compared to the sound speed. To overcome the stringent timestep restrictions posed by the predominantly used explicit methods for integration in time the Euler (or Navier-Stokes) equations are usually replaced by modified versions.
Natalie Happenhofer   +4 more
openalex   +4 more sources

Low Mach Number Fluctuating Hydrodynamics for Electrolytes

open access: yesPhysical Review Fluids, 2016
We formulate and study computationally the low Mach number fluctuating hydrodynamic equations for electrolyte solutions. We are interested in studying transport in mixtures of charged species at the mesoscale, down to scales below the Debye length, where
Bell, John B.   +5 more
core   +4 more sources

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