1990International Journal of Numerical Modelling Electronic Networks Devices and FieldsRequires access

Numerical solution of inhomogeneous and non‐linear ordinary differential equations using the TLM multicompartment model

A. H. M. Saleh, Donard de Cogan

Open publisher page 3 citations

Abstract

Abstract The paper presents a simple algorithm for solving a system of inhomogeneous high order differential equations with variable coefficients. The method also provides a numerical solution to non‐linear ordinary differential equations. The technique is based on reducing the high order equations into a system of first order rate equations. Through a simple translation process, the variables in the reduced set of equations are solved simultaneously by an iterative scheme using the TLM multicompartment model. The numerical technique is demonstrated by solving well‐known second order differential equations. The numerical solutions are compared with the analytical solutions to the differential equations.

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What this paper is about

Abstract The paper presents a simple algorithm for solving a system of inhomogeneous high order differential equations with variable coefficients. The method also provides a numerical solution to non‐linear ordinary differential equations. The technique is based on reducing the high order equations into a system of first order rate equations. Through a simple translation process, the variables in the reduced set of equations are solved simultaneously by an iterative scheme using the TLM multicompartment model. The numerical technique is demonstrated by solving well‐known second order differential equations. The numerical solutions are compared with the analytical solutions to the differential equations.

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Available abstract

Abstract The paper presents a simple algorithm for solving a system of inhomogeneous high order differential equations with variable coefficients. The method also provides a numerical solution to non‐linear ordinary differential equations. The technique is based on reducing the high order equations into a system of first order rate equations. Through a simple translation process, the variables in the reduced set of equations are solved simultaneously by an iterative scheme using the TLM multicompartment model. The numerical technique is demonstrated by solving well‐known second order differential equations. The numerical solutions are compared with the analytical solutions to the differential equations.

Key concepts: Numerical partial differential equations, Ordinary differential equation, Exponential integrator, Mathematics, Differential algebraic equation, Backward differentiation formula, Numerical methods for ordinary differential equations, Independent equation

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