Results 51 to 60 of about 16,122 (222)

GDQ METHOD FOR NATURAL CONVECTION IN A SQUARE CAVITY USING VELOCITY–VORTICITY FORMULATION [PDF]

Numerical Heat Transfer, Part B: Fundamentals, 2005
ABSTRACT This article describes a compact numerical algorithm based on the generalized differential quadrature (GDQ) method for the numerical analysis of natural convection in a differentially heated square cavity. The velocity–vorticity form of the Navier–Stokes equations and energy equation are used to represent the mass, momentum, and energy ...
Lo, D. C., Young, D.L., Murugesan, K.
openaire   +1 more source

Hybrid lattice Boltzmann 3D simulation of combined heat transfer by conduction, convection and radiation

Case Studies in Thermal Engineering, 2022
In this study, the hybrid lattice Boltzmann scheme is introduced for three-dimensional heat transfer by conduction, natural convection and radiation.
Alexander Nee, Ali J. Chamkha
doaj   +1 more source

An Immersed Boundary Method Based on the Kinematic Relation of the Velocity-Vorticity Formulation

Journal of Mechanics, 2014
AbstractAn immersed boundary method is proposed for the simulation of the interaction of an incompressible flow with rigid bodies. The method is based on a new interpretation of velocity-vorticity formulation and no longer includes the force term which is an essential issue of common immersed boundary methods.
I. Farahbakhsh, H. Ghassemi, F. Sabetghadam   +2 more
openaire   +1 more source

An effective integrated-RBFN Cartesian-grid discretization for the stream function-vorticity-temperature formulation in nonrectangular domains [PDF]

, 2009
This paper presents a new numerical collocation procedure, based on Cartesian grids and one-dimensional integrated radial-basis-function networks (1D-IRBFNs), for the simulation of natural convection defined in two-dimensional multiply-connected domains ...
Mai-Duy, N., Tran-Cong, T., Le-Cao, K.
core   +1 more source

Engineering Layered Magnetic Hydrogels for Cell Placement via Shear and Magnetic Field‐Induced Assembly

Advanced Materials, EarlyView.
Magnetic particles are organized into layered architectures by combining shear flow and magnetic fields, with the resulting structures governed by appropriate Mason numbers. The programmed assemblies provide spatial guidance for cell placement, linking field‐controlled self‐assembly, flow‐induced structuring and biological organization.
Guillermo Camacho, Jose R. Morillas, Jesús García‐Gutiérrez, Stefania Nardecchia, Óscar Martínez‐Cano, Juan de Vicente   +5 more
wiley   +1 more source

Vortex Trapping Cavity on Airfoil: High-Order Penalized Vortex Method Numerical Simulation and Water Tunnel Experimental Investigation

Energies, 2021
This paper presents a two-dimensional implementation of the high-order penalized vortex in cell method applied to solve the flow past an airfoil with a vortex trapping cavity operating under moderate Reynolds number.
Dominik Błoński, Katarzyna Strzelecka, Henryk Kudela   +2 more
doaj   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

Advanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang, Steve Gaudez, Mario Togni, Steven Van Petegem, Markus Bambach, Mamzi Afrasiabi   +5 more
wiley   +1 more source

The spectral element discretization of the Stokes problem with mixed boundary conditions

Boundary Value Problems
The Stokes problem was reformulated using a variational approach with three independent unknowns vorticity, velocity, and pressure to manage boundary conditions involving the normal velocity component and tangential vorticity components.
Ebtisam Al harbi, Nejmeddine Chorfi, Mohamed Abdelwahed   +2 more
doaj   +1 more source

Hybrid Lattice Boltzmann Scheme for Conductive-convective-radiative Heat Transfer [PDF]

Journal of Applied and Computational Mechanics
This paper presents the hybrid lattice Boltzmann model to study the interaction of conduction, natural convection and surface radiation. A square air-filled cavity with finite thickness walls is considered. The heat source is fixed at the top solid-fluid
Alexander Nee
doaj   +1 more source

Vorticity–velocity-pressure and stream function-vorticity formulations for the Stokes problem

, 2003
We study the Stokes problem of incompressible fluid dynamics in two and three-dimension spaces, for general bounded domains with smooth boundary. We use the vorticity–velocity-pressure formulation and introduce a new Hilbert space for the vorticity.
Salaün, Michel, Salmon, Stéphanie, Dubois, François   +2 more
core   +1 more source