کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1727482 1015176 2007 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The effects of a porous-elastic seabed on interfacial wave propagation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
The effects of a porous-elastic seabed on interfacial wave propagation
چکیده انگلیسی
A theoretical model for the decay of progressive interfacial gravity waves propagating above a porous bed is developed assuming potential flow in a two-layer system with a free surface and a sharp interface. A new wave dispersion relation for two-layer flow above a quasi-static porous seabed is derived and investigated. The solutions for the nonlinear wave profile are derived using a perturbation method and the effects of geometric and flow parameters including bed characteristics, depth ratios and the densities of the two fluids are studied and discussed. Comparisons with existing analytical solutions for viscous interfacial wave attenuation over a rigid bed demonstrate the relative importance of the porous bed as a mechanism for wave decay. It is shown that the influence of a porous seabed on wave propagation is significant when the depth of the lower layer, normalised by the wavenumber, is less than π.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 34, Issue 13, September 2007, Pages 1818-1831
نویسندگان
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