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Comparing Two Topography-Following Primitive Equation Models for Lake Circulation

Umlauf, Lars ; Wang, Yongqi ; Hutter, Kolumban :
Comparing Two Topography-Following Primitive Equation Models for Lake Circulation.
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0021999199...]
In: Journal of Computational Physics, 153 (2) pp. 638-659. ISSN 0021-9991
[Artikel], (1999)

Offizielle URL: http://www.sciencedirect.com/science/article/pii/S0021999199...

Kurzbeschreibung (Abstract)

We compare two semi-implicit models with topography-following coordinates for the solution of the shallow water equations. The models are identical in horizontal representation, but model A applies a vertical finite difference method and model B a vertical spectral method. Convergence, stability, and performance for different geometries and parameters are compared. We report our experiences gained in lake modelling with these models and give some results of simulations of Lake Ammer in the homogeneous and stratified cases. Different wave phenomena and the basin wide circulations will be discussed.

Typ des Eintrags: Artikel
Erschienen: 1999
Autor(en): Umlauf, Lars ; Wang, Yongqi ; Hutter, Kolumban
Titel: Comparing Two Topography-Following Primitive Equation Models for Lake Circulation
Sprache: Englisch
Kurzbeschreibung (Abstract):

We compare two semi-implicit models with topography-following coordinates for the solution of the shallow water equations. The models are identical in horizontal representation, but model A applies a vertical finite difference method and model B a vertical spectral method. Convergence, stability, and performance for different geometries and parameters are compared. We report our experiences gained in lake modelling with these models and give some results of simulations of Lake Ammer in the homogeneous and stratified cases. Different wave phenomena and the basin wide circulations will be discussed.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Computational Physics
Band: 153
(Heft-)Nummer: 2
Verlag: Elsevier Science
Freie Schlagworte: benchmark; stability; shallow water; semi-implicit; lake; circulation; limnology; spectral
Fachbereich(e)/-gebiet(e): Fachbereich Maschinenbau > Strömungsdynamik
Fachbereich Maschinenbau
Hinterlegungsdatum: 23 Aug 2011 14:53
Offizielle URL: http://www.sciencedirect.com/science/article/pii/S0021999199...
Zusätzliche Informationen:

doi:10.1006/jcph.1999.6298

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