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A finite volume model for coupling surface and subsurface flows

โœ Scribed by Bing Yuan; Dekui Yuan; Jian Sun; Jianhua Tao


Book ID
118275987
Publisher
Elsevier
Year
2012
Tongue
English
Weight
407 KB
Volume
31
Category
Article
ISSN
1877-7058

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โœ C. Bourdarias; S. Gerbi ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 660 KB

A model is derived for the coupling of transient free surface and pressurized flows. The resulting system of equations is written under a conservative form with discontinuous gradient of pressure. We treat the transition point between the two types of flows as a free boundary associated to a discont

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Robust and accurate schemes are designed to simulate the coupling between subsurface and overland flows. The coupling conditions at the interface enforce the continuity of both the normal flux and the pressure. Richards' equation governing the subsurface flow is discretized using a backward differen