finite difference
Application of the Finite-Difference Frequency-Domain (FDFD) method on radiowave propagation in urban environments
... In this context, Finite-Difference Time-Domain (FDTD) models [3],[8],[9],[10] and Parabolic Equation (PE) propagators [5],[7],[12] emerged as powerful options. Both have the potential to include all these ...
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Explicit Finite Difference Solution of Heat Transfer Problems of Fish Packages in Precooling
... the finite difference solutions are in ...a finite difference scheme parameters which are accurate, reliable and efficient for heat transfer analyses during precooling of an infinite slab ...
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VISCO-ACOUSTIC MODELING IN THE FREQUENCY DOMAIN USING A MIXED-GRID FINITE-DIFFERENCE METHOD AND ATTENUATION-DISPERSION MODEL
... ABSTRACT. Seismic modeling is an important step in the process used for imaging Earth sub-surface. Current applications require accurate models associated with solutions of the equation of wave propagation in realistic ...
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Controlling the numerical Cerenkov instability in PIC simulations using a customized finite difference Maxwell solver and a local FFT based current correction
... We note that in Ref. [21] a PIC algorithm based on using a “local” FFT Maxwell solver was proposed. Their work was motivated for maintaining high parallel efficiency and was not focused on eliminating the NCI. They did ...
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Reduced-order strategy for meshless solution of plate bending problems with the generalized finite difference method
... This work presents a systematic solution for the bending of thin elastic plates based on the Generalized Finite Difference Method (GFDM). In this method, the mesh entity is non-existent (even the background ...
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A Compact Finite Difference Method for Solving the General Rosenau-RLW Equation
... Abstract—In this paper, a compact finite difference method to solve the Rosenau–RLW equation is proposed. A numerical tool is applied to the model by using a three–level average implicit finite ...
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Wind Turbine Micrositing: Comparison of Finite Difference Method and Computational Fluid Dynamics
... In this paper, the study of wind turbine micro-siting using Finite Difference Method is represented. In this study wind pressure distribution and its effect on wind turbine on the wind farm are considered. ...
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Use of finite difference time domain simulations and Debye theory for modelling the terahertz reflection response of normal and tumour breast tissue.
... The aim of this work was to evaluate the capabilities of Debye theory combined with Finite Difference Time Domain (FDTD) methods to simulate the terahertz (THz) response of breast tissues. Being able to ...
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Mitigation of numerical Cerenkov radiation and instability using a hybrid finite difference-FFT Maxwell solver and a local charge conserving current deposit
... rates (compared with their Yee solver counterpart). In this paper, we propose to use a hybrid Yee-FFT solver, in which the FFT is per- formed in only one direction, namely the drifting direction of the plasma, while ...
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Study of a parallel algorithm in liquid front propagation for Ceará’s soils using the finite difference method
... inite difference implicit scheme, see Johnsen (1992)) need to be solved. The partial differential equation for the pressure head as a function of the spatial coordinates and time, commonly known as the Richards ...
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An implicit finite difference approximation for the solution of the diffusion equation with distributed order in time
... developed: finite element methods ([26], [27]), meshless collocation methods ([13]), collocation spectral methods ([14]) and fi- nite difference methods (see for example [3], [4], [6], [10], [15], [16], ...
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Mat. Res. vol.7 número2
... the Finite Difference Method in cylindrical coordinates in order to study the temperature distribution produced in a workpiece and hence obtain the depth to which hardening occurs by analyzing the cooling ...
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Lat. Am. j. solids struct. vol.13 número9
... implicit finite difference ...central difference scheme, whereas the time derivative of the temperature at node i and time step (k+1) is represented using the backward difference ...
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American options under stochastic volatility
... introduced finite difference methods; the least squares Monte Carlo is a model developed by Longstaff and Schwartz (2001), where the model uses simulations of cash flows generated by the option and compare ...
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ORIOS ELETROMAGN´ ETICOS EM SISTEMAS DE ATERRAMENTO EL´ ETRICO DEVIDOS A PULSOS DE DESCARGAS ATMOSF´ ERICAS
... In this dissertation, we present a study on the transient and steady-state behaviors of grounding systems when subjected to surges with the waveform of a lightning discharge. The analyses of grounding systems were made ...
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A two-dimensional linear elasticity problem for anisotropic materials, solved with a parallelization code
... Abstract: The present paper introduces a numerical approach of static linear elasticity equations for anisotropic materials. The domain and boundary conditions are simple, to enhance an easy implementation of the ...
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A Study to Compute the Numerical Solution of Stochastic Models in Reliability Engineering
... upon finite difference methods to resolve and emerge the transient state of Markovian system in reliability theory ...use finite difference method for understand and get better valuation as ...
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TEMA (São Carlos) vol.14 número2
... In this paper we showed in detail the numerical analysis of exponential decay of the solutions of a numerical scheme in finite difference applied to coupled systems of diffusion equations. This scheme ...
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Numerical Simulation of Steady State Conduction Heat Transfer During the Solidification of Aluminum Casting in Green Sand Mould
... This study show the numeric simulation by the finite difference analysis of the temperature distribution and cooling process of aluminum in green sand mould, during 2 hours of solidification. Results were ...
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M ESTRADO M ATEMÁTICAF
... In order to solve this equation numerically, the domain of integration of the integral term needs to be truncated by a bounded interval and because the Variance Gamma process is a jump process of infinite activity, the ...
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