High accuracy difference schemes for a class of three space dimensional singular parabolic equations with variable coefficients
โ Scribed by R.K. Mohanty
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 617 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0377-0427
No coin nor oath required. For personal study only.
โฆ Synopsis
In this article, two-level implicit difference methods of O(k2+ h 4) using 19-spatial grid points for the solution of three space dimensional heat conduction equation and unsteady Navier-Stokes' equations in polar coordinates are proposed. Unconditionally stable ADI methods for the solution of the heat conduction equation in polar coordinates are also discussed. Numerical examples given here show that the methods developed here retain their order and accuracy everywhere including the region in the vicinity of the singularity r = 0.
๐ SIMILAR VOLUMES
s hypergeometric functions of three variables a b s t r a c t We consider an equation Here ฮฑ, ฮฒ, ฮณ are constants, moreover 0 < 2ฮฑ, 2ฮฒ, 2ฮณ < 1. The main result of this paper is a construction of eight fundamental solutions for the above-given equation in an explicit form. They are expressed by Laur
In this paper, a three explicit difference shcemes with high order accuracy for solving the equations of two-dimensional parabolic type is proposed. The stability condition is r= At/Ax 2 =At/Ay2~I/I and the truncation error is O(/kt~+ Axe).