Results 1 to 10 of about 9,955,784 (384)
Mach Number Dependence of Electron Heating in High Mach Number Quasiperpendicular Shocks [PDF]
Phys. Plasmas, vol.17, 042901 (2010), 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. In the model analyses saturation levels of effective electron temperature as a result of microinstabilities are ...
Matsukiyo, Shuichi
arxiv +6 more sources
Low Mach number effect in simulation of high Mach number flow [PDF]
, 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. We introduced two simple low-Mach-number modifications for the classical Roe flux to decrease the difference between the acoustic and advection ...
N. A. Adams, X. Y. Hu
arxiv +7 more sources
Quasiperpendicular High Mach Number Shocks. [PDF]
Physical 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.
A. Sulaiman +5 more
semanticscholar +9 more sources
Cosmic Mach Number as a Function of Overdensity and Galaxy Age [PDF]
, 2000 We carry out an extensive study of the cosmic Mach number (\mach) on scales of R=5, 10 and 20h^-1Mpc using an LCDM hydrodynamical simulation. We particularly put emphasis on the environmental dependence of \mach on overdensity, galaxy mass, and galaxy age.
Kentaro Nagamine +2 more
arxiv +8 more sources
Low Mach Number Fluctuating Hydrodynamics for Electrolytes [PDF]
Physical 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
Jean-Philippe P'eraud +5 more
semanticscholar +6 more sources
Low Mach Number Modeling of Type Ia Supernovae [PDF]
Astrophys.J.637:922-936,2006, 2005 We introduce a low Mach number equation set for the large-scale numerical simulation of carbon-oxygen white dwarfs experiencing a thermonuclear deflagration. Since most of the interesting physics in a Type Ia supernova transpires at Mach numbers from 0.01 to 0.1, such an approach enables both a considerable increase in accuracy and savings in computer ...
Ann Almgren +3 more
arxiv +7 more sources
Exploring the spectral properties of radio relics I: Integrated spectral index and Mach number [PDF]
, 2021 Radio relics are the manifestation of electrons presumably being shock (re-)accelerated to high energies in the outskirts of galaxy clusters. However, estimates of the shocks' strength yield different results when measured with radio or X-ray observations. In general, Mach numbers obtained from radio observations are larger than the corresponding X-ray
D. Wittor +5 more
arxiv +3 more sources
Sound attenuation in high mach number oscillating bubble media [PDF]
Ultrasonics 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]
Ultrasonics 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
An Effective AUSM-Type Scheme for Both Cases of Low Mach Number and High Mach Number
Applied 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