Buscar
Mostrando ítems 61-70 de 22202
A roller type base isolation device with tensile strength
(Elsevier Ltd, 2020)
Numerical investigation of three dimensional viscoelastic free surface flows: Impacting drop problem
(2014-01-01)
This work presents a numerical investigation of three dimensional viscoelastic free surface flows. In particular, using two different numerical methodologies, we have simulated a typical free-surface benchmark flow problem: ...
An evaluation of three upwinding approximations for numerical modeling the flow in tubular membrane of Newtonian and non-Newtonian fluids
(ELSEVIER SCIENCE INC, 2011)
In this paper, the laminar fluid flow of Newtonian and non-Newtonian of aqueous solutions in a tubular membrane is numerically studied. The mathematical formulation, with associated initial and boundary conditions for ...
The upstream spreading of bottom-trapped plumes
(American Meteorological Society, 2010-07)
It is well known that numerical simulations of freshwater discharges produce plumes that spread in the direction opposite to that of the propagation of coastally trapped waves (the upstream direction). The lack of a theory ...
Numerical model for the stress field ahead of a crack in elastoplastic regime
(2019-01-01)
Damage-tolerant designs admit the pre-existence of defects and small cracks, which lead to stress redistribution in structural components. The accurate knowledge of the stress field in parts under these conditions is ...
Optimization of lumped parameter models to mitigate numerical oscillations in the transient responses of short transmission lines
(2021-10-01)
The Lumped Parameter Model (LPM) is a known approach to represent overhead transmission lines (TLs), especially when these elements comprehend a few tens of kilometers. LPMs employ a large number of cascaded π-circuits to ...
Transmission lines model with different basic structures applied to transient electromagnetic simulations
(2016-01-01)
Models based on lumped elements are simple ones to represent systems composed by distributed parameters when models with lumped elements use a lot of these elements. However, such mentioned models usually present numerical ...
Study of microwave drying of vegetables by numerical modeling. Influence of dielectric properties and operating conditions
(Karger, 2018-10)
In the present work mass and energy transfer during microwave dehydration of vegetables were studied. Microwaves interact with the polar molecules of food enabling its heating and dehydration. This interaction is affected ...
Numerical simulation of mass transfer in circulating drops
(Elsevier, 2010-05)
Numerical simulations of mass transfer are performed for a circulating liquid drop with applications in liquid–liquid extraction. Simulation parameters are chosen for a multi-component ternary system acetone–methanol–benzene. ...
Analysis of estuarine flood levels based on numerical modelling. The Douro river estuary case study
(Universidade Federal de Santa Maria, 2019)