Results 21 to 30 of about 55,050 (125)

Global bifurcations to subcritical magnetorotational dynamo action in Keplerian shear flow [PDF]

, 2013
Magnetorotational dynamo action in Keplerian shear flow is a three-dimensional, non-linear magnetohydrodynamic process whose study is relevant to the understanding of accretion processes and magnetic field generation in astrophysics.
A. Riols, Armitage, Birkhoff, C. Cossu, Childress, Eckhardt, F. Rincon, G. I. Ogilvie, G. Lesur, Gressel, Hartmann, J. Herault, Kelvin, Moffatt, Orr, P.-Y. Longaretti, Palis, Schmid, Simó, Steenbeck, Velikhov   +20 more
core   +3 more sources

Prediction of pure loss of stability in following waves incorporating the effect of hydrodynamic lift force

Zhongguo Jianchuan Yanjiu
ObjectiveWhen ships sail in following waves, they often encounter complex nonlinear phenomena. Specifically, variations in waterplane area may lead to a significant reduction in the roll restoring force, and excessive surge forces on the ship can induce ...
Jinya ZHANG, Ning MA, Jianwen DUAN, Qiqi SHI   +3 more
doaj   +1 more source

Comparative simulation of nonlinear radiative nano casson and maxwell fluids with periodic magnetic force and sensitivity analysis

Heliyon
This study investigated cyclic magneto-hydrodynamic radiative effects in Casson and Maxwell fluids, including nonlinear radiation and Arrhenius activation energy.
Saiful Islam, Md Yousuf Ali, Sk Reza-E-Rabbi   +2 more
doaj   +1 more source

Numerical Study of the Ultra-High-Speed Aerodynamically Alleviated Marine Vehicle Motion Stability in Winds and Waves

Journal of Marine Science and Engineering
The ultra-high-speed aerodynamically alleviated marine vehicle (AAMV) is a high-performance vessel that combines a hydrodynamic configuration and an aerodynamic wing to reduce wave-making resistance during the high-speed planing phase.
Yani Song, Xiaoxu Du, Yuli Hu
doaj   +1 more source

Shearing box simulations in the Rayleigh unstable regime

, 2017
We study the stability properties of Rayleigh unstable flows both in the purely hydrodynamic and magnetohydrodynamic (MHD) regimes for two different values of the shear $q=2.1, 4.2$ ($q = - d\ln\Omega / d\ln r$) and compare it with the Keplerian case $q ...
Blackman, Eric G., Nauman, Farrukh
core   +1 more source

Local characteristic algorithms for relativistic hydrodynamics [PDF]

, 2002
Numerical schemes for the general relativistic hydrodynamic equations are discussed. The use of conservative algorithms based upon the characteristic structure of those equations, developed during the last decade building on ideas first applied in ...
Font, Jose A.
core   +2 more sources

Numerical investigation of entropy generation due to Joule heating in the thermally stratified flow of MHD Powell-Eyring fluid towards a porous curved surface

Case Studies in Thermal Engineering
Numerical simulation was utilised to evaluate entropy generation and the thermo-hydrodynamic behaviour of the unsteady magnetised Mg-Fe3O4 hybrid Powell-Eyring nanofluid flow over a porous, thermally stratified, curved surface, in relation to thermal ...
P.R. Sobhana Babu, D. Srinivasa Rao, Iskandar Waini, K. Sudarmozhi, A. Kiran Kumar, P. Jayalakshmi, Mustafa Inc   +6 more
doaj   +1 more source

High-speed shear driven dynamos. Part 1. Asymptotic analysis

, 2019
Rational large Reynolds number matched asymptotic expansions of three-dimensional nonlinear magneto-hydrodynamic (MHD) states are concerned. The nonlinear MHD states, assumed to be predominantly driven by a unidirectional shear, can be sustained without ...
Deguchi, Kengo
core   +1 more source

Nonlinear Characterisation of Wind Turbine Gearbox Vibration Dynamics Driven by Inhomogeneous Helical Gear Wear

Vibration
Helical gear transmissions in wind turbine gearboxes operate under high torque, variable speed, and complex rolling–sliding contact conditions, where friction-induced wear evolves in a spatially non-uniform manner.
Khaldoon F. Brethee, Ghalib R. Ibrahim, Al-Hussein Albarbar   +2 more
doaj   +1 more source

Multidimensional supernova simulations with approximative neutrino transport. II. Convection and the advective-acoustic cycle in the supernova core

, 2007
By 2D hydrodynamic simulations including a detailed equation of state and neutrino transport, we investigate the interplay between different non-radial hydrodynamic instabilities that play a role during the postbounce accretion phase of collapsing ...
Arcones, Arzoumanian, Bazan, Blondin, Blondin, Blondin, Buras, Buras, Buras, Burrows, Burrows, Burrows, Chatterjee, Colella, Cordes, Foglizzo, Foglizzo, Foglizzo, Foglizzo, Foglizzo, H.-Th. Janka, Hansen, Herant, Herant, Hobbs, Houck, Janka, Janka, Janka, K. Kifonidis, Kifonidis, L. Scheck, Laming, Leonard, Liebendörfer, Liebendörfer, Lyne, Meakin, Meakin, Meakin, Murphy, Nobuta, Ohnishi, Rampp, Scheck, Scheck, Shen, T. Foglizzo, Thompson, Thompson, Wang, Wang, Wang, Woosley, Yamasaki, Young, Zou   +56 more
core   +1 more source