نتایج جستجو برای: non standard finite difference

تعداد نتایج: 2280205  

Journal: :J. Applied Mathematics 2011
Salman S. Nourazar Meisam Habibi Matin M. Simiari

The nonlinear two-dimensional forced-convection boundary-layer magneto hydrodynamic MHD incompressible flow of nanofluid over a horizontal stretching flat plate with variable magnetic field including the viscous dissipation effect is solved using the homotopy perturbation method HPM . In the present work, our results of the HPM are compared with the results of simulation using the finite differ...

2001
Robert W. Clayton

Reciprocity is applied to the situation where numerical simulations are needed for a number of source locations but relatively a few receiver positions. By invoking source-receiver reciprocity, the number of simulations can be generally reduced to three times the number of receiver positions. The procedure is illustrated for a heterogeneous medium with both single-force and double-couple source...

Journal: :Simulation Modelling Practice and Theory 2007
Niall M. McMahon Martin Crane Heather J. Ruskin L. Crane

As shown in previous papers, mathematical simulation can be useful in the design of drug delivery systems. We present a finite-difference approximation to the drug mass transfer rate from dissolving cylindrical drug-containing compacts, consisting of alternating layers of drug and inert material. Results are compared with a recent analytical solution to the same problem and with experiment. The...

Journal: :CoRR 2017
Alexander V. Evako

Generalized Fibonacci-like sequences appear in finite difference approximations of the Partial Differential Equations based upon replacing partial differential equations by finite difference equations. This paper studies properties of the generalized Fibonacci-like sequence . It is shown that this sequence is periodic with the period ( ) if | | .

Journal: :J. Comput. Physics 2011
Bengt Fornberg Erik Lehto

Radial basis functions (RBFs) are receiving much attention as a tool for solving PDEs because of their ability to achieve spectral accuracy also with unstructured node layouts. Such node sets provide both geometric flexibility and opportunities for local node refinement. In spite of requiring a somewhat larger total number of nodes for the same accuracy, RBF-generated finite difference (RBF-FD)...

2002
I. Z. MAT DARUS M. O. TOKHI

An investigation into the dynamic characterisation of a rectangular flexible plate structure is presented and a simulation algorithm characterising the behaviour of the plate is developed using finite difference methods. A thin, rectangular plate, with all edges clamped, is considered. The investigation is accomplished by varying the width over the length ratio of the plate. The algorithm is im...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده ریاضی 1383

یک تکنیک خطی سازی برای جواب عددی معادله sine-gordon با استفاده از طرح ضمنی روش خطی را مطرح می کنیم. به واسطه این تکنیک عبارت غیر خطی معادله sine-gordon کاملاً خطی می شود. بنابر این مسائل با مقادیر کرانه ای و اولیه مربوط به این معادله غیر خطی، به یک سیستم جبر خطی تبدیل می شود. سپس با استفاده از finite-difference و به روش فوریه پایداری آن می پردازیم. در نهایت از یک سری روش های تفاضل متناهی، جهت تب...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده فیزیک 1387

چکیده ندارد.

Journal: :JDIM 2013
Jian Ni Xifei Wei

The finite volume method combines the advantage of the finite element method and the finite difference method, while overcoming their shortcomings. This paper describes the development of the finite volume method and the process of using finite volume method for fluid calculations. Finally, this paper introduces the process of using improved finite volume method for solving the flow equations o...

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