Results 21 to 30 of about 127,967 (248)
Integrated characteristics of thermogravitational convection in the air layer of ventilated facades [PDF]
Инженерно-строительный журнал, 2013 Ventilated facades solve at least two topical problems for civil engineering: it allows reducing the humidity (concentration of water vapor) on warmed wall surface and reducing heat losses from facade to the environment. The major factor in solving these
D.V. Nemova
doaj
Scaling properties of velocity and temperature spectra above the surface friction layer in a convective atmospheric boundary layer [PDF]
, 2007 International audienceWe report velocity and temperature spectra measured at nine levels from 1.42 meters up to 25.7 m over a smooth playa in Western Utah. Data are from highly convective conditions when the magnitude of the Obukhov length (our proxy for
Clement, R. J. +2 more
core +3 more sources
Large-scale instabilities in a non-rotating turbulent convection [PDF]
, 2006 Formation of large-scale coherent structures in a turbulent convection via excitation of large-scale instability is studied. The redistribution of the turbulent heat flux due to non-uniform large-scale motions plays a crucial role in the formation of the
Chandrasekhar S. +11 more
core +2 more sources
Nanotechnology Reviews, 2023 In the present analysis, we have analyzed the three-dimensional flow of an electromagnetohydrodynamic copper–aluminum/water hybrid nanofluid flow on a Riga plate. The heat and mass flux model proposed by Cattaneo-Christov is deliberated here.
Yasmin Humaira +4 more
doaj +1 more source
Convective motions and net circular polarization in sunspot penumbrae
, 2009 We have employed a penumbral model, that includes the Evershed flow and convective motions inside penumbral filaments, to reproduce the azimuthal variation of the net circular polarization (NCP) in sunspot penumbrae at different heliocentric angles for ...
Borrero +26 more
core +1 more source
Three-Dimensional Magnetohydrodynamic Simulations of Spherical Accretion [PDF]
, 2001 We present three-dimensional numerical magnetohydrodynamic simulations of radiatively inefficient spherical accretion onto a black hole. The simulations are initialized with a Bondi flow, and with a weak, dynamically unimportant, large-scale magnetic ...
Belloni T. +11 more
core +2 more sources
Models and Observations of Sunspot Penumbrae [PDF]
, 2008 The mysteries of sunspot penumbrae have been under an intense scrutiny for the past 10 years. During this time, some models have been proposed and refuted, while the surviving ones had to be modified, adapted and evolved to explain the ever-increasing ...
A. R. Choudhuri +60 more
core +2 more sources
Ain Shams Engineering Journal, 2015 This paper investigates the unsteady free convective flow of heat generating/absorbing fluid through a porous vertical channel with velocity slip and temperature jump.
Samuel O. Adesanya
doaj +1 more source
A possible theory for the interaction between convective activities and vortical flows [PDF]
Nonlinear Processes in Geophysics, 2011 Theoretical studies usually attribute convections to the developments of instabilities such as the static or symmetric instabilities of the basic flows. However, the following three facts make the validities of these basic theories unconvincing.
N. Zhao +3 more
doaj +1 more source
A film model for free convection over a vertical porous plate with blowing or suction [PDF]
, 1993 A film model is described for free convective heat transfer and friction in the presence of wall suction or injection. The analysis yields a thermal correction factor, which appears to be the classical (Ackermann) expression, and a novel friction ...
Brouwers, H.J.H.
core +4 more sources