Results 31 to 40 of about 617,651 (370)
A Stochastic Framework for Modeling the Population Dynamics of Convective Clouds
Journal of Advances in Modeling Earth Systems, 2018 A stochastic prognostic framework for modeling the population dynamics of convective clouds and representing them in climate models is proposed. The framework follows the nonequilibrium statistical mechanical approach to constructing a master equation ...
Samson Hagos +4 more
doaj +1 more source
Shell model for stratified convection: implications for the solar convective conundrum [PDF]
arXiv, 2022 We extend the notion of a shell model to stratified systems, and propose one that represents stratified, nonmagnetic, nonrotating convection at low Mach number. Motivated by profiles of background stratification that support convection in stars such as the Sun, we study numerical solutions corresponding to a highly unstable layer above a mildly ...
arxiv
Comparison of two- and three-dimensional compressible convection in a pre-main sequence star [PDF]
A&A 638, A15 (2020), 2020 Extending our recent studies of two-dimensional stellar convection to 3D, we compare three-dimensional hydrodynamic simulations to identically set-up two-dimensional simulations, for a realistic pre-main sequence star. We compare statistical quantities related to convective flows including: average velocity, vorticity, local enstrophy, and penetration ...
arxiv +1 more source
Stability Analysis for Fluid Flow between Two Infinite Parallel Plates II [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2004 A model of fluid flow with heat transfer by conduction , convection and radiation has been discussed for stability with respect to restricted parameters (k,a,r,T*) which are proportional to: wave numbers, thermal expansion coefficient, combination of ...
Mahdi Mosa, Abdo Ali
doaj +1 more source
Nature, 1962 It is natural to inquire whether thermal convection is occurring in the Moon through solid state creep processes. The primary evidence is the departure of the Moon from the figure of hydrostatic equilibrium, but certain difficulties in the thermal history of the Moon are eased by assuming heat transfer by convection. If convection exists in the Moon it
openaire +2 more sources
Converging and diverging convection around axisymmetric magnetic flux tubes [PDF]
, 2006 A numerical model of idealized sunspots and pores is presented, where axisymmetric cylindrical domains are used with aspect ratios (radius versus depth) up to 4.
A. M. Rucklidge +26 more
core +1 more source
Resistive and magnetized accretion flows with convection
, 2012 We considered the effects of convection on the radiatively inefficient accretion flows (RIAF) in the presence of resistivity and toroidal magnetic field. We discussed the effects of convection on transports of angular momentum and energy.
A.A. Esin +24 more
core +1 more source
Convection and oscillations [PDF]
Astronomische Nachrichten, 2010 AbstractIn this short review on stellar convection dynamics I address the following, currently very topical, issues: (1) the surface effects of the Reynolds stresses and nonadiabaticity on solar‐like pulsation frequencies, and (2) oscillation mode lifetimes of stochastically excited oscillations in red giants computed with different time‐dependent ...
openaire +4 more sources
Circling in on Convective Organization [PDF]
Geophysical Research Letters, 2019 AbstractCold pools (CPs) contribute to convective organization. However, it is unclear by which mechanisms organization occurs. By using a particle method to track CP gust fronts in large eddy simulations, we characterize the basic collision modes between CPs.
Haerter, Jan O. +3 more
openaire +6 more sources
Development of convection along the SPCZ within a Madden-Julian oscillation [PDF]
, 1996 A subtropical Rossby wave propagation mechanism is proposed to account for the poleward and eastward progression of intraseasonal convective anomalies along the South Pacific Convergence Zone (SPCZ) that is observed in a significant proportion of Madden ...
Ardanuy +25 more
core +2 more sources