Results 21 to 30 of about 9,950,957 (390)

MAESTROeX: A Massively Parallel Low Mach Number Astrophysical Solver [PDF]

open access: yesJournal of Open Source Software, 2019
We present MAESTROeX, a massively parallel solver for low Mach number astrophysical flows. The underlying low Mach number equation set allows for efficient, long-time integration for highly subsonic flows compared to compressible approaches. MAESTROeX is
Duoming Fan   +4 more
semanticscholar   +1 more source

Aeroengine High-Attitude/Low Mach Number Oscillations: Mechanism and Prevention Design

open access: yesInternational Journal of Aerospace Engineering, 2021
The issue of aeroengine oscillations over high-attitude and low-speed flight envelope has been an unsolved problem due to their classified nature and hard reproduction in simulated altitude test stand.
Jiqiang Wang
doaj   +1 more source

Theory Helps Observations: Determination of the Shock Mach Number and Scales From Magnetic Measurements

open access: yesFrontiers in Physics, 2022
The Mach number is one of the key parameters of collisionless shocks. Understanding shock physics requires knowledge of the spatial scales in the shock transition layer.
Michael Gedalin   +3 more
doaj   +1 more source

Fuzzy-based prediction for suddenly expanded axisymmetric nozzle flows with microjets [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
The current research focuses on the implementation of the fuzzy logic approach for the prediction of base pressure as a function of the input parameters.
Jaimon D. Quadros   +5 more
doaj   +1 more source

An experimental validation of a nonlinear acoustic resistance model for an acoustically compact area contraction with steady mean flow [PDF]

open access: yesJASA Express Letters, 2021
In a previously published paper, a model for the nonlinear acoustic response of an area contraction including bias flow was presented. The model's prediction for the zero-driving resistance grew progressively worse as the steady-flow Mach number ...
Luke H. Humphreys   +2 more
doaj   +1 more source

Numerical Study on the Biomimetic Trailing Edge of a Turbine Blade Under a Wide Range of Outlet Mach Numbers

open access: yesFrontiers in Energy Research, 2021
This study was carried out to investigate the loss mechanism of a blade with a harbor seal whisker structure on the trailing edge under different Mach numbers.
Fengbo Wen   +4 more
doaj   +1 more source

Low Mach number limit of some staggered schemes for compressible barotropic flows [PDF]

open access: yesMathematics of Computation, 2018
In this paper, we study the behaviour at low Mach number of numerical schemes based on staggered discretizations for the barotropic Navier-Stokes equations.
R. Herbin, J. Latché, Khaled Saleh
semanticscholar   +1 more source

Flutter analysis of tapered composite fins: Analysis and experiment [PDF]

open access: yesFME Transactions, 2022
In the present work, the aeroelastic stability of tapered composite plates is investigated. Existing flutter models, based on the typical section approach, are reviewed for quasi-steady and unsteady low Mach number axial flows and modified for the thin ...
Dinulović Mirko   +3 more
doaj   +1 more source

An all Mach number relaxation upwind scheme

open access: yes, 2020
The present paper concerns the derivation of finite volume methods to approximate the weak solutions of the Euler equations within all Mach number regimes. To address such an issue, we develop a Suliciu relaxation type scheme.
C. Berthon, C. Klingenberg, Markus Zenk
semanticscholar   +1 more source

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   +1 more source

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