Results 51 to 60 of about 1,429 (181)
Effect of shape and sizes of a local heat source on convective heat transfer in a square cavity [PDF]
Компьютерные исследования и моделирование, 2015 Numerical analysis of the effects of the local heat source shape on transient natural convection in a square enclosure has been carried out. The local heat source has rectangular, triangular and trapezoidal shape. The boundary value problem formulated in
N. S. Gibanov +1 more
doaj +1 more source
Melt Production and Volatile Release From Thermochemical Mantle Plumes
Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.Abstract Mantle plumes are thought to generate Large Igneous Provinces (LIPs), the largest outpourings of lava in the geologic record, which are associated with long‐lasting climatic warming events and mass extinctions. However, the controls on mantle degassing by plumes remain poorly constrained.
Qianyi Lu +2 more
wiley +1 more source
Oscillatory convection and limitations of the Boussinesq approximation [PDF]
Journal of Fluid Mechanics, 2016 We determine the asymptotic conditions under which the Boussinesq approximation is valid for oscillatory convection in a rapidly rotating fluid. In the astrophysically relevant parameter regime of small Prandtl number, we show that the Boussinesq prediction for the onset of convection is valid only under much more restrictive conditions than those that
T. S. Wood, P. J. Bushby
openaire +3 more sources
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.Abstract Plume interaction with a forest canopy results in flow features distinct from those in grasslands. Here, we model the turbulence dynamics of a buoyant plume in a homogeneous plant canopy with a crosswind using Large‐Eddy Simulations. As the plume interacts with the crosswind, we observe increased vorticity at the windward and tilted hair‐pin ...
Ajinkya Desai +2 more
wiley +1 more source
The Liquid Film Flow with Evaporation: Numerical Modelling
MATEC Web of Conferences, 2016 The flow of thin liquid layer on an inclined substrate is investigated numerically. The mathematical modelling is based on the Oberbeck-Boussinesq equations and the generalized conditions on the thermocapillary boundary simplified during the parametrical
Rezanova Ekaterina
doaj +1 more source
A Test Function Method for Weakly Coupled Systems With Derivative‐Type Nonlinearity
Mathematische Nachrichten, Volume 299, Issue 10, Page 3015-3035, October 2026.ABSTRACT We consider a two by two system of inequalities which include fractional powers of the Laplace operator, coupled through a semilinear term of derivative type. We prove the nonexistence of global‐in‐time weak solutions for powers below the critical curve and possibly on the critical curve.
Marcello D'Abbicco, Antonio Lagioia
wiley +1 more source
Free Convection and Irreversibility Analysis inside a Circular Porous Enclosure
Entropy, 2003 We investigate the nature of heat transfer and entropy generation for natural convection in a two-dimensional circular section enclosure. The enclosure is assumed to fill with porous media.
Shohel Mahmud, Roydon Andrew Fraser
doaj +1 more source
Adaptive Numerical Modeling of Tsunami Wave Generation and Propagation with FreeFem++
Geosciences, 2020 A simplified nonlinear dispersive Boussinesq system of the Benjamin–Bona–Mahony (BBM)-type, initially derived by Mitsotakis (2009), is employed here in order to model the generation and propagation of surface water waves over variable bottom.
Georges Sadaka, Denys Dutykh
doaj +1 more source
Wind Energy, Volume 29, Issue 10, October 2026.ABSTRACT Sørlige Nordsjø II (SNII) is a planned large‐scale offshore wind farm in the Southern Norwegian North Sea near the Danish border, with phased development targeting a total installed capacity of up to 3 GW. For projects of this scale, site assessments are typically performed using computationally efficient analytical models.
Mostafa Bakhoday Paskyabi, Xu Ning
wiley +1 more source
Explicit Solutions of a Gravity-Induced Film Flow along a Convectively Heated Vertical Wall
The Scientific World Journal, 2013 The gravity-driven film flow has been analyzed along a vertical wall subjected to a convective boundary condition. The Boussinesq approximation is applied to simplify the buoyancy term, and similarity transformations are used on the mathematical model of
Ammarah Raees, Hang Xu
doaj +1 more source