Results 51 to 60 of about 8,682,927 (148)

Stabilized fiber-optic Mach–Zehnder interferometer for carrier-frequency rejection

open access: yes, 2013
We have demonstrated stabilization of a fiber-optic Mach–Zehnder interferometer, with a centimeter-scale path difference, to the transmission minimum for the carrier wave of a frequency-modulated laser beam.
Freegarde, Tim   +4 more
core   +1 more source

Effect of Mach Number on Stability of Boundary Layer Over a Rotating Cone in Hypersonic Flow

open access: yes气体物理
Spinning vehicles achieve gyroscopic effects by rotating around their axis. However, transition significantly influences the stability of flight. In this work, a study of instability on the unstable modes in boundary layers over a rotating cone in ...
Yiyang GU   +3 more
doaj   +1 more source

A Preconditioned Method for Rotating Flows at Arbitrary Mach Number

open access: yesModelling and Simulation in Engineering, 2011
An improved preconditioning is proposed for viscous flow computations in rotating and nonrotating frames at arbitrary Mach numbers. The key to the current method is the use of both free stream Mach number and rotating Mach number to construct a ...
Chunhua Sheng
doaj   +1 more source

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

Concept Study for a Mach 6 Transport Aircraft [PDF]

open access: yes, 2009
A conceptual study is here presented and discusscd on the possibility to transport 200 passengers over a distance of about 7000km in a nominal point-to-point mission through the Atlantic (either London-New York or London-Rio) at a cruise Mach number of 6
Coulouvrat, F.   +15 more
core  

A new stall-onset criterion for low speed dynamic-stall [PDF]

open access: yes, 2005
The Beddoes/Leishman dynamic-stall model has become one of the most popular for the provision of unsteady aerofoil data embedded in much larger codes.
Sheng, W.   +7 more
core   +1 more source

Effects of Mach number on turbulent separation behaviours induced by blunt fin [PDF]

open access: yes, 1998
An experimental study of the interaction between shock wave and turbulent boundary layer induced by blunt fin has been carried out at M-infinity = 7.8 using oil flow visualization and simultaneous measurements of fluctuating wall pressure and heat ...
Wang, SF (reprint author), Acad Sinica, Inst Mech, Lab High Temp Dynam, Beijing 100080, Peoples R China.   +3 more
core   +1 more source

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

Analysis of a Three-Dimensional, High Pressure Ratio Scramjet Inlet with Variable Internal Contraction [PDF]

open access: yes, 2012
We conducted an extensive experimental examination of the operational behavior of a three-dimensional scramjet inlet featuring a movable cowl to adapt the internal contraction according to the respective operation conditions.
Hohn, Oliver   +3 more
core   +1 more source

Solar Orbiter encounters an unusually high Mach number interplanetary shock

open access: yesAstronomy & Astrophysics
Aims. The objective of this study is to characterise and understand the magnetic structure of an extremely high Mach number interplanetary shock. Methods.
Dimmock A. P.   +7 more
doaj   +1 more source

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