Results 41 to 50 of about 385,605 (249)
All speed scheme for the low mach number limit of the Isentropic Euler equation [PDF]
, 2009 An all speed scheme for the Isentropic Euler equation is presented in this paper. When the Mach number tends to zero, the compressible Euler equation converges to its incompressible counterpart, in which the density becomes a constant.
Constantin +12 more
core +3 more sources
Research on analysis method of propulsive efficiency of prop-fan engine
Hangkong gongcheng jinzhanIt is of great significant for prop-fan engine under medium to high Mach number to evaluate the propulsive efficiency of turbofan, turboprop and prop-fan engines.
HUANG Xing +3 more
doaj +1 more source
Aerospace, 2023 Flow separation and transitions of separation patterns are common phenomena of nozzles working with a wide Mach range. The maximum thrust method is applied to design the single-expansion ramp nozzle (SERN) for specific operating conditions. The nozzle is
Yang Yu +5 more
doaj +1 more source
Improving Euler Computations at Low Mach Numbers [PDF]
International 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 +1 more source
Computational Study of Shocked V-Shaped N2/SF6 Interface across Varying Mach Numbers
AxiomsThe Mach number effect on the Richtmyer–Meshkov instability (RMI) evolution of the shocked V-shaped N2/SF6 interface is numerically studied in this research. Four distinct Mach numbers are taken into consideration for this purpose: Ms=1.12,1.22,1.42, and
Salman Saud Alsaeed, Satyvir Singh
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Flux Splitting for stiff equations: A notion on stability
, 2014 For low Mach number flows, there is a strong recent interest in the development and analysis of IMEX (implicit/explicit) schemes, which rely on a splitting of the convective flux into stiff and nonstiff parts.
Noelle, Sebastian, Schütz, Jochen
core +1 more source
A Preconditioned Method for Rotating Flows at Arbitrary Mach Number
Modelling 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
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Measuring the Alfvenic Nature of the Interstellar Medium: Velocity Anisotropy Revisited
, 2014 The dynamics of the interstellar medium (ISM) are strongly affected by turbulence, which shows increased anisotropy in the presence of a magnetic field. We expand upon the Esquivel & Lazarian method to estimate the Alfven Mach number using the structure ...
Burkhart, Blakesley +4 more
core +1 more source
CFD and aeroelastic analysis of the MEXICO wind turbine [PDF]
, 2014 This paper presents an aerodynamic and aeroelastic analysis of the MEXICO wind turbine, using the compressible HMB solver of Liverpool. The aeroelasticity of the blade, as well as the effect of a low-Mach scheme were studied for the zero-yaw 15m/s wind ...
Barakos, G. +5 more
core +1 more source
Effect of Mach Number on Stability of Boundary Layer Over a Rotating Cone in Hypersonic Flow
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