Results 81 to 90 of about 632,255 (202)

Numerical Investigation of MHD‐Driven Heat and Mass Transfer in a Porous Enclosure Filled With Cu–Water Nanofluid

open access: yesEngineering Reports, Volume 8, Issue 10, October 2026.
A finite element framework is developed to analyze MHD flow and heat transfer in a porous T‐joint cavity under an inclined magnetic field, including viscous dissipation and heat source/sink effects. The model combines domain discretization, mesh refinement, and equation discretization to obtain validated numerical predictions.
Samiha Islam Tanni   +4 more
wiley   +1 more source

A Test Function Method for Weakly Coupled Systems With Derivative‐Type Nonlinearity

open access: yesMathematische 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

kh2d-solver: A Python library for idealized two-dimensional incompressible Kelvin-Helmholtz instability

open access: yesApplied and Computational Mechanics
This study presents an open-source Python library for simulating two-dimensional incompressible Kelvin-Helmholtz (KH) instabilities in stratified shear flows.
Herho S. H. S.   +6 more
doaj   +1 more source

Couette-Hiemenz exact solutions for the steady creeping convective flow of a viscous incompressible fluid with allowance made for heat recovery

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
In this paper, we study the steady creeping convective flow of a viscous incompressible fluid in the thin infinite layer. The study of the fluid flow is based on the exact solutions class for the Oberbeck-Boussinesq equations in the Stokes approximation ...
Valentina V Privalova   +1 more
doaj   +1 more source

Numerical simulation of high-swirl flow in axial turbine stage

open access: yesEPJ Web of Conferences, 2016
This article deals with numerical modelling of flow in an axial turbine stage with prismatic blades which are not equipped with shroud. In this case flow through a radial gap above and below ends of blades leads to generation of strong secondary vortices
Straka Petr
doaj   +1 more source

Weakly Nonlinear Instability of a Convective Flow in a Plane Vertical Channel

open access: yesFluids
The weakly nonlinear stability analysis of a convective flow in a planar vertical fluid layer is performed in this paper. The base flow in the vertical direction is generated by internal heat sources distributed within the fluid.
Natalja Budkina   +3 more
doaj   +1 more source

Energy Stability of Benard-Darcy Two-Component Convection of Maxwell Fluid

open access: yesInternational Journal of Applied Mechanics and Engineering, 2013
Energy stability of a horizontal layer of a two-component Maxwell fluid in a porous medium heated and salted from below is studied under the Oberbeck-Boussinesq-Darcy approximation using the Lyapunov direct method.
H. Muti, H. Demir, P.G. Siddheshwar
doaj   +1 more source

Spectral Jacobi approximations for Boussinesq systems

open access: yesStudies in Applied Mathematics
AbstractThis paper is concerned with the numerical approximation of initial‐boundary‐value problems of a three‐parameter family of Bona–Smith systems, derived as a model for the propagation of surface waves under a physical Boussinesq regime. The work proposed here is focused on the corresponding problem with Dirichlet boundary conditions and its ...
openaire   +3 more sources

Liquid-Liquid Polymerization Front under Quasiperiodic Gravitational Modulation

open access: yesMATEC Web of Conferences, 2016
The influence of quasi-periodic gravitational modulation of polymerization front with liquid monomer and liquid polymer is studied in this paper. The model considered includes the heat equation, the equation for the concentration and the Navier-Stokes ...
Assiyad Saadia   +2 more
doaj   +1 more source

Assessment of the boussinesq approximation for buoyancy-driven flows [PDF]

open access: yes, 2002
The numerical simulation of buoyant flows often makes use of the Boussinesq approximation. This is particularly true when Direct Numerical Simulation is used for the analysis of heat transfer loops or other applications of natural convection flows ...
Di Piazza, Ivan, Mulas, Marco
core  

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