Examples of using Finite differences in English and their translations into Portuguese
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Tag Archives: finite differences.
Another of de Montmort's interests was the subject of finite differences.
A great limitation of finite differences methods is that they are restricted to retangular meshes and domains.
Let us now put in correspondence to Eq.(1)the following finite differences scheme.
This method is based on compact finite differences, with temporal second-order precision and spatial foruth-order precision.
The filtering is done implicitly, using the discretization of the equations by finite differences.
To overcome this problem, software based on finite differences and finite elements are usually used.
The last discipline was“Topics of Numerical Analysis”,which in this case was about finite differences.
Index Terms-quasilinear heat equation,Stefan problem, finite differences, alternating directions scheme, numerical stability.
The methods used in the simulations are the euler andlagrange equations and develop in finite differences.
This is similar to the classic finite differences method, but the derivatives involved in the differential equations are of a lesser order.
Robert evaporator was described in concentrated and distributed(finite differences method) approaches.
They are widely used in the method of finite differences to produce first order methods for solving or approximating solutions to equations.
Solutions for this equation, associated with initial andboundary conditions were obtained using the method of finite differences.
In 1933 Milne-Thomsonpublished his first book, The Calculus of Finite Differences which became a classic textbook and the original text was reprinted in 1951.
Calculus of finite differences, discrete calculus or discrete analysis===A function defined on an interval of the integers is usually called a sequence.
The main objective of this work is the parallelization of a global weather prediction model in finite differences with the local refinement.
The classical methods of finite differences and galerkin finite element are unable to eliminate the error of pollution effect for high wave numbers.
The reliability analyzes were performed considering the FORM with direct coupling,in which the derivatives of G are evaluated implicitly by finite differences.
New two-dimensional analyses by finite elements and finite differences were made using the softwares PHASE2 and FLAC, respectively.
A new error bound for the approximation partial derivative present in the wave equation,which yielded coefficients optimized finite differences was tested.
A secondary goal is to present details of the traditional finite differences construction, based on taylor series, and the drp, proposed by tam and webb 1993.
Therefore, we adopted the method of wave kinematics, discrete from the flow stations,using the numerical method of finite differences with dimensionless variables.
From the numerical point of view, it is presented andimplemented a scheme finite differences type obtained from a lagrangian-eulerian approach to obtain the riemann solutions for the proposed model.
The implementation of this mathematical model was built in matlab 2012 platform,by solving the system of nonlinear equations by finite differences in the explicitly form.
The second one was proposed by O. C. Ferreira11 andconsists of differentiation, by the finite differences method, of the annual deforestation values observed and its cumulative values, taken, respectively as ordinates and abscissas.
In mathematics, finite-difference methods(FDM) are numerical methods for solving differential equations by approximating them with difference equations, in which finite differences approximate the derivatives.
To obtain the pore-pressure field the flow equation is solved using the finite element method and the finite differences method, and the limit equilibrium method is used to find the factor of safety fs.
In order to improve accuracy andreduce the cost of finite difference method, a convolutional differentiator operator, in which we used different functions window to generate new coefficients of finite differences.
In the present work, derived from navier-stokes andcontinuity equations, a code was developed with semi-implicit finite differences equations in order to simulate non-hydrostatic pressure approximation free-surface flows.