TY - JOUR
T1 - A new stable variable mesh method for 1-D non-linear parabolic partial differential equations
AU - Arora, Urvashi
AU - Karaa, Samir
AU - Mohanty, R. K.
PY - 2006/10/15
Y1 - 2006/10/15
N2 - We propose a new stable variable mesh implicit difference method for the solution of non-linear parabolic equation uxx = φ{symbol}(x, t, u, ux, ut), 0 < x < 1, t > 0 subject to appropriate initial and Dirichlet boundary conditions prescribed. We require only (3 + 3)-spatial grid points and two evaluations of the function φ{symbol}. The proposed method is directly applicable to solve parabolic equation having a singularity at x = 0. The proposed method when applied to a linear diffusion equation is shown to be unconditionally stable. The numerical tests are performed to demonstrate the convergence of the proposed new method.
AB - We propose a new stable variable mesh implicit difference method for the solution of non-linear parabolic equation uxx = φ{symbol}(x, t, u, ux, ut), 0 < x < 1, t > 0 subject to appropriate initial and Dirichlet boundary conditions prescribed. We require only (3 + 3)-spatial grid points and two evaluations of the function φ{symbol}. The proposed method is directly applicable to solve parabolic equation having a singularity at x = 0. The proposed method when applied to a linear diffusion equation is shown to be unconditionally stable. The numerical tests are performed to demonstrate the convergence of the proposed new method.
KW - Arithmetic average discretization
KW - Burgers' equation
KW - Diffusion equation
KW - Finite difference method
KW - Implicit method
KW - Variable mesh
UR - http://www.scopus.com/inward/record.url?scp=33750474859&partnerID=8YFLogxK
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U2 - 10.1016/j.amc.2006.02.032
DO - 10.1016/j.amc.2006.02.032
M3 - Article
AN - SCOPUS:33750474859
SN - 0096-3003
VL - 181
SP - 1423
EP - 1430
JO - Applied Mathematics and Computation
JF - Applied Mathematics and Computation
IS - 2
ER -