Results 51 to 60 of about 385,605 (249)

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

Aerodynamic Parameters Analysis of Transonic Flow Past Unswept and Swept Wings [PDF]

open access: yesEngineering and Technology Journal, 2011
The transonic flow past unswept and swept wings has been studied. For this purpose the transonic potential flow equation is solved for inviscid compressible flow. The shock waves are replaced by discontinuities across which the entropy is conserved.
Raad Shehab Ahmed
doaj   +1 more source

Note on the limits to the local Mach number on an aerofoil in subsonic flow [PDF]

open access: yes, 1948
It has been noted in some experiments that the local Mach number just ahead of a shock wave on an aerofoil in subsonic flow is limited, values of the limit of the order of 1.4 are usually quoted.
Young, A. D.
core   +1 more source

On a diphasic low mach number system [PDF]

open access: yesESAIM: Mathematical Modelling and Numerical Analysis, 2005
The author proposes a diphasic low Mach number (DLMN) system for the modelling of diphasic flows at low Mach number. This system filters out the acoustic waves but keeps all the informations coming from the thermodynamic as the equations of state and the entropy contrary to a standard incompressible diphasic Navier-Stokes system.
openaire   +1 more source

A universal scaling law for the evolution of granular gases

open access: yes, 2015
Dry, freely evolving granular materials in a dilute gaseous state coalesce into dense clusters only due to dissipative interactions. This clustering transition is important for a number of problems ranging from geophysics to cosmology.
Clewett, James P. D.   +2 more
core   +1 more source

Simulations of the Galaxy Cluster CIZA J2242.8+5301 I: Thermal Model and Shock Properties [PDF]

open access: yes, 2017
The giant radio relic in CIZA J2242.8+5301 is likely evidence of a Mpc sized shock in a massive merging galaxy cluster. However, the exact shock properties are still not clearly determined. In particular, the Mach number derived from the integrated radio
Beck, A. M.   +3 more
core   +3 more sources

Numerical Analysis of Supersonic Film Cooling in Supersonic Flow in Hypersonic Inlet with Isolator

open access: yesAdvances in Mechanical Engineering, 2014
Supersonic film cooling is an efficient method to cool the engine with extremely high heat load. In order to study supersonic film cooling in a real advanced engine, a two-dimensional model of the hypersonic inlet in a scramjet engine with supersonic ...
Silong Zhang   +3 more
doaj   +1 more source

Low-speed aerodynamic performance of 50.8-centimeter-diameter noise-suppressing inlets for the Quiet, Clean, Short-haul Experimental Engine (QCSEE) [PDF]

open access: yes
Two basic inlet concepts, a high throat Mach number (0.79) design and a low throat Mach number (0.60) design, were tested with four diffuser acoustical treatment designs that had face sheet porosity ranging from 0 to 24 percent for the high Mach number ...
Abbott, J. M.   +2 more
core   +1 more source

Investigation of Rotor Tip Vortex in Hover Based on IDDES Methods

open access: yesXibei Gongye Daxue Xuebao, 2019
A calculation and analysis program of high-precision numerical simulation for rotor blade tip vortex in hovering state was developed. The fifth order Roe-WENO scheme was carried out in order to reduce the numerical dissipation of the rotor wake region ...

doaj   +1 more source

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