Results 11 to 20 of about 9,803,992 (369)

Low Mach Number Modeling of Type Ia Supernovae

open access: green, 2005
We introduce a low Mach number equation set for the large-scale numerical simulation of carbon-oxygen white dwarfs experiencing a thermonuclear deflagration.
A. S. Almgren   +5 more
core   +5 more sources

A minicourse on the low Mach number limit

open access: bronzeDiscrete & Continuous Dynamical Systems - S, 2008
These lectures are devoted to the study of the low Mach number limit for classical solutions of the compressible Navier-Stokes or Euler equations for non-isentropic fluids. We study the general case where the combined effects of large temperature variations and thermal conduction are taken into account.
Thomas Alazard
  +6 more sources

An all Mach number finite volume method for isentropic two-phase flow [PDF]

open access: yesJ. Num. Math., 2022
We present an implicit–explicit finite volume scheme for isentropic two phase flow in all Mach number regimes. The underlying model belongs to the class of symmetric hyperbolic thermodynamically compatible models.
M. Lukáčová-Medvid’ová   +2 more
semanticscholar   +1 more source

Novel Characteristics of Subsonic Coflowing Jets With Varying Lip Thickness [PDF]

open access: yesJournal of Aerospace Technology and Management, 2020
Effect of Mach number on coflowing jet at lip thickness of 0.2 Dp, 1.0 Dp and 1.5 Dp (where Dp is primary nozzle exit diameter, 10 mm) at Mach numbers 1.0, 0.8 and 0.6 were studied experimentally.
Naren Shankar Radha Krishnan   +1 more
doaj   +3 more sources

Mach and Froude Numbers on Mars [PDF]

open access: yesThe Planetary Science Journal, 2022
Abstract Mars atmospheric global circulation models exhibit transonic jet streaks during northern winter, which motivates this study of the Mach number, Ma (the ratio of flow speed to the speed of sound), and Froude number, Fr (the ratio of flow speed to the speed of buoyancy waves), as a function of season and location.
Nasr, Camella-Rosa C.   +4 more
openaire   +1 more source

Exploring the spectral properties of radio relics – I: integrated spectral index and Mach number [PDF]

open access: yes, 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 ...
D. Wittor   +5 more
semanticscholar   +1 more source

Low Mach number limit for the Quantum-Hydrodynamics system

open access: yes, 2016
In this paper we deal with the low Mach number limit for the system of quantum-hydrodynamics, far from the vortex nucleation regime. More precisely, in the framework of a periodic domain and ill-prepared initial data we prove strong convergence of the ...
Donatelli, Donatella   +1 more
core   +2 more sources

A homogeneous relaxation low mach number model [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2021
In the present paper, we investigate a new homogeneous relaxation model describing the behaviour of a two-phase fluid flow in a low Mach number regime, which can be obtained as a low Mach number approximation of the well-known HRM. For this specific model, we derive an equation of state to describe the thermodynamics of the two-phase fluid.
Faccanoni, Gloria   +2 more
openaire   +2 more sources

Revisiting the Open-End Reflection Coefficient and Turbulent Losses in an Organ Pipe with Low Mach Number Flowipe with low Mach number flow

open access: yesArchives of Acoustics, 2021
The reflection coefficient of the open end belongs among the essential parameters in the physical description of a flue organ pipe. It leads directly to practical topics such as the pipe scaling.
Viktor HRUŠKA, Pavel DLASK
doaj   +1 more source

Sonic Eddy Model of the Turbulent Boundary Layer

open access: yesFluids, 2022
The effects of Mach number on the skin friction and velocity fluctuations of the turbulent boundary layer are considered through a sonic eddy model. Originally proposed for free shear flows, the model assumes that the eddies responsible for momentum ...
Paul Dintilhac, Robert Breidenthal
doaj   +1 more source

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