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Transient Finite Element Shallow Lake Circulation

Young, Frank D. L. / Liggett, James A.

The paper presents a fast method of computing the three-dimensional time-dependent circulation in shallow homogeneous lakes. The Laplace tranform is used to remove the time dependence and enable a vertical integration of the basic equations. The resulting two-dimensional problem is treated numerically by a finite element analysis. The method then employs a numerical transform inversion in order to return to the physical variables. The result is a technique which is more than an order of magnitude faster than the time stepping method. Numerical results are compared to those obtained by other methods.

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Transient Finite Element Shallow Lake Circulation

Young, Frank D. L. / Liggett, James A.

The paper presents a fast method of computing the three-dimensional time-dependent circulation in shallow homogeneous lakes. The Laplace tranform is used to remove the time dependence and enable a vertical integration of the basic equations. The resulting two-dimensional problem is treated numerically by a finite element analysis. The method then employs a numerical transform inversion in order to return to the physical variables. The result is a technique which is more than an order of magnitude faster than the time stepping method. Numerical results are compared to those obtained by other methods.

Transient Finite Element Shallow Lake Circulation

Young, Frank D. L. / Liggett, James A.

The paper presents a fast method of computing the three-dimensional time-dependent circulation in shallow homogeneous lakes. The Laplace tranform is used to remove the time dependence and enable a vertical integration of the basic equations. The resulting two-dimensional problem is treated numerically by a finite element analysis. The method then employs a numerical transform inversion in order to return to the physical variables. The result is a technique which is more than an order of magnitude faster than the time stepping method. Numerical results are compared to those obtained by other methods.

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Title:

Transient Finite Element Shallow Lake Circulation

Contributors:

Young, Frank D. L. (author) / Liggett, James A. (author)

Published in:

Journal of the Hydraulics Division ; 103 ; 109-121

Publication date:

2021-01-01

Size:

131977-01-01 pages

ISSN:

0044-796X , 2690-2524

DOI:

https://doi.org/10.1061/JYCEAJ.0004697

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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