TECHNICAL PAPERS
Mar 1, 1984

Complex Polynomial Approximation of the LaPlace Equation

Publication: Journal of Hydraulic Engineering
Volume 110, Issue 3

Abstract

A method of approximating the solution of the Laplace equation in two‐dimensions is presented. The numerical approach is to determine a complex variable polynomial which satisfies the specified boundary conditions along a simple closed contour. Since the method is simple to apply to time‐stepped, quasi‐steady state saturated ground water problems or moving boundary problems, a significant savings in computational effort over other boundary integral equation methods is available. Applications to a free water surface problem and a moving boundary problem are presented. Error bounds and model stability are considered.

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References

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Brebbia, C. A., “The Boundary Element Method for Engineers,” Pentech Press, 1978.
2.
Dettman, J. W., “Applied Complex Variables,” Macmillan Co., 1969.
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Hromadka, T. V., II, and Guymon, G. L., “Application of a Boundary Integral Equation to Prediction of Freezing Fronts in Soil,” Cold Regions Science and Technology, Vol. 6, No. 2, 1982, pp. 115–121.
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Go to Journal of Hydraulic Engineering
Journal of Hydraulic Engineering
Volume 110Issue 3March 1984
Pages: 329 - 339

History

Published online: Mar 1, 1984
Published in print: Mar 1984

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Authors

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T. V. Hromadka, II
Asst. Research Engr., Civ. Engrg., Univ. of California, Irvine, Calif. 92717
Gary L. Guymon, M. ASCE
Prof., Civ. Engrg., Univ. of California, Irvine, Calif. 92717

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