Results 61 to 70 of about 16,292 (188)

DebrisInterMixing-2.3: a finite volume solver for three-dimensional debris-flow simulations with two calibration parameters – Part 1: Model description [PDF]

open access: yesGeoscientific Model Development, 2016
Here, we present a three-dimensional fluid dynamic solver that simulates debris flows as a mixture of two fluids (a Coulomb viscoplastic model of the gravel mixed with a Herschel–Bulkley representation of the fine material suspension) in combination with
A. von Boetticher   +4 more
doaj   +1 more source

Pore-scale direct numerical simulation of Haines jumps in a porous media model

open access: yes, 2020
Direct numerical simulations are presented for a porous media model consisting of two immiscible fluids, an invading and defending phase, in a two-dimensional micro-geometry filled with randomly sized and randomly distributed cylinders.
Afkhami, Shahriar   +2 more
core   +1 more source

Numerical modelling of the filling of formworks with self-compacting concrete [PDF]

open access: yes, 2010
This paper describes the numerical modelling of the flow of self-compacting concrete (SCC) in column and wall formworks during the filling process. It is subdivided in four main parts.
De Schutter, Geert   +6 more
core   +1 more source

Numerical simulation of bubble generation in a T-junction [PDF]

open access: yes, 2012
We present a numerical study of the formation of mini-bubbles in a 2D T-junction by means of the fluid dynamics numerical code JADIM. Numerical simulations were carried out for different flow conditions, giving rise to results on the behavior of bubble ...
Arias, Santiago   +2 more
core   +4 more sources

3D avalanche flow modeling using OpenFOAM

open access: yesТруды Института системного программирования РАН, 2018
In this paper, a model of a snow avalanche was created with the help of open source CFD software OpenFOAM. The avalanche is considered as a turbulent two-phase flow - snow and air. We take incompressible Herschel-Balkley fluid as a model of snow.
D. I. Romanova
doaj   +1 more source

Numerical simulation of the flow rate effect on the evolution of a negatively buoyant water jet

open access: yesInternational Journal of Energetica, 2020
A numerical simulation study was done on a penetrating pure water jet injected into another surrounding salt water miscible with negative buoyancy conditions.
Oumaima Eleuch   +4 more
doaj  

Three dimensional numerical simulations for non-breaking solitary wave interacting with a group of slender vertical cylinders

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2009
In this paper we validate a numerical model for wave-structure interaction by comparing numerical results with laboratory data. The numerical model is based on the Navier-Stokes (N-S) equations for an incompressible fluid. The N-S equations are solved by
Weihua Mo, Philip L.-F. Liu
doaj   +1 more source

Lattice Boltzmann simulation of droplet behaviour in microfluidic devices [PDF]

open access: yes, 2008
We developed a lattice Boltzmann model to investigate the droplet dynamics in microfluidic devices. In our model, a stress-free boundary condition was proposed to conserve the total mass of flow system and improve the numerical stability for flows with ...
Liu, Haihu, Zhang, Yonghao
core   +2 more sources

Phase-field simulation of core-annular pipe flow

open access: yes, 2019
Phase-field methods have long been used to model the flow of immiscible fluids. Their ability to naturally capture interface topological changes is widely recognized, but their accuracy in simulating flows of real fluids in practical geometries is not ...
Avila, Marc   +3 more
core   +1 more source

Optimal Design of Isothermal Sloshing Vessels by Entropy Generation Minimization Method

open access: yesMathematics, 2019
In this manuscript, the optimal design of geometry for a forced sloshing in a rigid container based on the entropy generation minimization (EGM) method is presented.
Mohammad Yaghoub Abdollahzadeh Jamalabadi
doaj   +1 more source

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