Results 21 to 30 of about 11,306,054 (330)
Revista Brasileira de Engenharia Agrícola e Ambiental, 2006 As equações diferenciais do movimento de água e do transporte de soluto em solo não saturado, considerando-se a existência de extração pela planta, foram resolvidas utilizando a técnica diferenças finitas. Para a implementação do modelo desenvolveu-se um
Marcus M. Corrêa +5 more
doaj +1 more source
Inhomogeneous dielectrics: conformal mapping and finite-element models
Open Physics, 2017 Field singularities in electrostatic and magnetostatic fields require special attention in field calculations, and today finite element methods are normally used, both in homogeneous and in inhomogeneous dielectric cases.
Costamagna Eugenio, Barba Paolo Di
doaj +1 more source
Holistic finite differences accurately model the dynamics of the Kuramoto-Sivashinsky equation [PDF]
, 2000 We analyse the nonlinear Kuramoto-Sivashinsky equation to develop an accurate finite difference approximation to its dynamics. The analysis is based upon centre manifold theory so we are assured that the finite difference model accurately models the ...
MacKenzie, T., Roberts, A. J.
core +3 more sources
Contemporary approach to computer aided simulation of servosystems
Vojnotehnički Glasnik, 1999 The approach to the problem of computer aided simulation is based on practical and easy-to-use realization of the servosystem operation in virtual (computer) reality.
Nenad Dodić
doaj +1 more source
Stochastic Finite Differences and Multilevel Monte Carlo for a Class of SPDEs in Finance [PDF]
SIAM Journal on Financial Mathematics, 2012 In this article, we propose a Milstein finite difference scheme for a stochastic partial differential equation (SPDE) describing a large particle system.
M. Giles, C. Reisinger
semanticscholar +1 more source
Finite difference magnetoelastic simulator
Open Research Europe, 2021 We describe an extension of the micromagnetic finite difference simulation software MuMax3 to solve elasto-magneto-dynamical problems. The new module allows for numerical simulations of magnetization and displacement dynamics in magnetostrictive materials and structures, including both direct and inverse magnetostriction.
Frederic Vanderveken +7 more
openaire +3 more sources
Addressing Integration Error for Polygonal Finite Elements Through Polynomial Projections: A Patch Test Connection [PDF]
, 2013 Polygonal finite elements generally do not pass the patch test as a result of quadrature error in the evaluation of weak form integrals. In this work, we examine the consequences of lack of polynomial consistency and show that it can lead to a ...
Paulino, Glaucio H., Talischi, Cameron
core +1 more source
Chaotic finite difference operators
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2023 In this article, we analyze the chaotic behavior of finite difference operators associated with certain differential equations. Our examples range from numerical schemes for a birth-and-death model with proliferation to a class of second-order partial differential equations that includes the hyperbolic heat transfer equation, the telegraph equation ...
Marina Murillo-Arcila +2 more
openaire +5 more sources
ANALYSIS OF MAGNETOHYDRODYNAMIC NATURAL CONVECTION FLOW OF MICROPOLAR FLUID IN A SEMICIRCULAR ENCLOSURE FILLED [PDF]
Journal of Mechanics of Continua and Mathematical SciencesThis study investigates the magnetohydrodynamic (MHD) natural convection flow of micropolar fluid in a semi-circular enclosure, incorporating the effects of thermal radiation.
Gandrakota Kathyayani +2 more
doaj +1 more source
Method of lines solution to the transient SBS equations for nanosecond Stokes pulses [PDF]
Journal of the European Optical Society-Rapid Publications, 2013 The spectral and temporal evolution of distributed sensing based on stimulated Brillouin scattering (SBS) in optical fibers for several-nanosecond Stokes pulses is demonstrated by using the method of lines (MOL) solution of the transient SBS equations. A
Gökhan F. S. +2 more
doaj +1 more source