کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4526979 1323873 2006 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Diffusive wave solutions for open channel flows with uniform and concentrated lateral inflow
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Diffusive wave solutions for open channel flows with uniform and concentrated lateral inflow
چکیده انگلیسی

The diffusive wave equation with inhomogeneous terms representing hydraulics with uniform or concentrated lateral inflow into a river is theoretically investigated in the current paper. All the solutions have been systematically expressed in a unified form in terms of response function or so called K-function. The integration of K-function obtained by using Laplace transform becomes S-function, which is examined in detail to improve the understanding of flood routing characters. The backwater effects usually resulting in the discharge reductions and water surface elevations upstream due to both the downstream boundary and lateral inflow are analyzed. With a pulse discharge in upstream boundary inflow, downstream boundary outflow and lateral inflow respectively, hydrographs of a channel are routed by using the S-functions. Moreover, the comparisons of hydrographs in infinite, semi-infinite and finite channels are pursued to exhibit the different backwater effects due to a concentrated lateral inflow for various channel types.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Water Resources - Volume 29, Issue 7, July 2006, Pages 1000–1019
نویسندگان
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