Results 71 to 80 of about 8,682,927 (148)

Low Mach number limit of compressible nematic liquid crystal flows with well-prepared initial data in a 3D bounded domain

open access: yesElectronic Journal of Differential Equations, 2019
In this article, we consider the low Mach number limit of the compressible nematic liquid crystal flows in a 3D bounded domain. We establish the uniform estimates with respect to the Mach number for the strong solutions with large initial data in a ...
Boling Guo, Lan Zeng, Guoxi Ni
doaj  

Research on the Aerodynamic–Propulsion Coupling Characteristics of a Distributed Propulsion System

open access: yesApplied Sciences
In recent years, the distributed propulsion system has received extensive attention due to its advantages such as high propulsion efficiency, low noise, high safety redundancy, and good flexibility and maneuverability.
Xiaojun Yang, Tao Liu, Wei Jia
doaj   +1 more source

Singularities in mass-loaded MHD flow: The cometary bow shock [PDF]

open access: yes, 1991
We present a one-dimensional model of the mass-loading of the solar wind by cometary ions which predicts a singularity in the mass-loaded flow at M = 2. Further, a subshock occurs when the flow speed reaches M almost-equal-to 1.15.
A. J. Coates   +5 more
core   +1 more source

Morphology and Mach Number Dependence of Subsonic Bondi–Hoyle Accretion

open access: yesThe Astrophysical Journal
We carry out three-dimensional computations of the accretion rate onto an object (of size R _sink and mass m ) as it moves through a uniform medium at a subsonic speed v _∞ . The object is treated as a fully absorbing boundary (e.g., a black hole).
Logan J. Prust   +4 more
doaj   +1 more source

Analysis of Influencing Factors of Boundary Layer Transition During Ascent Phase of Hypersonic Vehicle

open access: yes气体物理
The transition of the boundary layer is an important issue that must be considered in the design of hypersonic vehicles. During the ascent phase of the vehicle, both the Mach number and the flight altitude increase simultaneously and affect the location ...
Yiwei TANG, Chao LI, Caihong SU
doaj   +1 more source

Low Mach Number Modeling

open access: yes, 2019
Low Mach number equation sets approximate the equations of motion of a compressible fluid by filtering out the sound waves, which allows the system to evolve on the advective rather than the acoustic time scale.
Almgren, Ann
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

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

Whistler Critical Mach Number Concept Revisited

open access: yesJournal of Geophysical Research: Space Physics
Low Mach number, fast magnetosonic,  dispersive shocks are formed if the characteristic scale of the shock front exceeds the characteristic the spatial scale associated with resistive processes. In these cases, dispersion arrests the nonlinear steepening of the shock front. According to the established view,  a whistler wave precursor,
Balikhin, M.A.   +7 more
openaire   +3 more sources

Optimized Group Velocity Control Scheme and DNS of Decaying Compressible Turbulence of Relative High Turbulent Mach Number

open access: yes, 2005
To overcome the difficulty in the DNS of compressible turbulence at high turbulent Mach number, a new difference scheme called GVC8 is developed. We have succeeded in the direct numerical simulation of decaying compressible turbulence up to turbulent ...
Li, XL (reprint author), Chinese Acad Sci, Inst Mech, LMM, 15 Beishuanxi Rd, Beijing 100080, Peoples R China.   +3 more
core   +1 more source

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