Results 21 to 30 of about 18,579 (261)

Improving Euler Computations at Low Mach Numbers [PDF]

open access: yesInternational Journal of Computational Fluid Dynamics, 1996
This paper consists of two parts, both dealing with conditioning techniques for low-Mach-number Euler-flow computations, in which a multigrid technique is applied. In the first part, for subsonic flows and upwind-discretized linearized 1-D Euler equations, the smoothing behavior of multigrid-accelerated point Gauss-Seidel relaxation is investigated ...
openaire   +2 more sources

A pressure-based method for solving low Mach number two-phase flows with surface tension

open access: yesJournal of Fluid Science and Technology, 2015
We develop a pressure-based method using a mixture model for solving low Mach number compressible two-phase flows which contain surface tension, viscous stress, and heat conduction.
Takuya YOSHIMOTO, Junichi OOIDA
doaj   +1 more source

A unified relationship for evaporation kinetics at low Mach numbers [PDF]

open access: yesNature Communications, 2019
AbstractWe experimentally realized and elucidated kinetically limited evaporation where the molecular gas dynamics close to the liquid–vapour interface dominates the overall transport. This process fundamentally dictates the performance of various evaporative systems and has received significant theoretical interest.
Zhengmao Lu   +4 more
openaire   +3 more sources

Preliminary results for the study of the godunov scheme applied to the linear wave equation with porosity at low mach number

open access: yesESAIM: Proceedings and Surveys, 2015
We introduce continuous tools to study the low Mach number behavior of the Godunov scheme applied to the linear wave equation with porosity on cartesian meshes.
Dellacherie Stéphane   +2 more
doaj   +1 more source

A low—storage Runge—Kutta OpenFOAM solver for compressible low—Mach number flows: aeroacoustic and thermo—fluid dynamic applications [PDF]

open access: yesE3S Web of Conferences, 2019
A solver for compressible Navier–Stokes equations is presented in this paper. Low-storage RungeKutta schemes were adopted for time integration; on the other hand the finite volume approach available within OpenFOAM library has been adopted for space ...
D’Alessandro Valerio   +3 more
doaj   +1 more source

A Relaxation Scheme for the Simulation of Low Mach Number Flows [PDF]

open access: yes, 2017
A scheme for the simulation of inviscid flows with low Mach number is derived. The scheme is built on a relaxation system and it is based on a linear implicit time discretization. The advective part is discretized by a convex combination of upwind and centered schemes, in order to recover the correct limit when the Mach number goes to zero.
Abbate, Emanuela   +2 more
openaire   +3 more sources

Low Mach number fluctuating hydrodynamics for electrolytes

open access: yesPhysical Review Fluids, 2016
37 pages, 5 ...
Péraud, Jean-Philippe   +5 more
openaire   +4 more sources

Simulations of starting gas jets at low Mach numbers [PDF]

open access: yesPhysics of Fluids, 2005
The starting jet produced by the impulsively started discharge of a submerged gas stream of constant velocity through a circular orifice in a plane wall is investigated by integrating numerically the axisymmetric Navier–Stokes equations for moderately large values of the jet Reynolds number. The analysis is restricted to low-Mach-number jets, for which
Iglesias Estradé, Inmaculada   +3 more
openaire   +2 more sources

On the Low Mach Number Limit for Quantum Navier--Stokes Equations [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2020
We investigate the low Mach number limit for the 3-D quantum Navier-Stokes system. For general ill-prepared initial data, we prove strong convergence of finite energy weak solutions to weak solutions of the incompressible Navier-Stokes equations. Our approach relies on a quite accurate dispersive analysis for the acoustic part, governed by the well ...
Paolo Antonelli   +2 more
openaire   +2 more sources

Noise Reduction Mechanisms of an Airfoil with Trailing Edge Serrations at Low Mach Number

open access: yesApplied Sciences, 2019
Trailing-edge serrations have proven to be valid applications of trailing edge noise mitigation for an airfoil, while the physical noise reduction mechanism has not been adequately studied. We performed simulations employing Large-eddy simulation and the
Hui Tang, Yulong Lei, Yao Fu
doaj   +1 more source

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