✦ LIBER ✦

The effects of a porous-elastic seabed on interfacial wave propagation

✍ Scribed by S.J. Williams; D.-S. Jeng

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 592 KB
Volume: 34
Category: Article
ISSN: 0029-8018
DOI: 10.1016/j.oceaneng.2007.02.002

No coin nor oath required. For personal study only.

✦ Synopsis

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 p.

📜 SIMILAR VOLUMES

Ocean waves propagating over a porous se

Ocean waves propagating over a porous seabed of finite thickness

✍ T.C. Lee; C.P. Tsai; D.S. Jeng 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 407 KB

In the past few decades, considerable efforts have been devoted to the phenomenon of waveseabed interaction. However, conventional investigations for determining wave characteristics have been focused on the wave nonlinearity. On the other hand, most previous works have been only concerned with the

The effect of interfacial stress on the

The effect of interfacial stress on the propagation of stoneley waves

✍ A.I. Murdoch 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 863 KB

Propagation of waves in a fluid-saturate

Propagation of waves in a fluid-saturated porous elastic solid

✍ Thérèse Lévy 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 559 KB

The effect of shear on the propagation o

The effect of shear on the propagation of elastic surface waves

✍ P. Connor; R.W. Ogden 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 481 KB

Effect of interfacial contact on the pro

Effect of interfacial contact on the propagation of flexural waves along a composite plate

✍ R. Jones; E.N. Thrower 📂 Article 📅 1965 🏛 Elsevier Science 🌐 English ⚖ 490 KB

The effects of variable permeability on

The effects of variable permeability on the wave-induced seabed response

✍ Y.S. Lin; D.S. Jeng 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 826 KB

The topic of wave-seabed interaction is important for civil engineers with regard to stability analysis of foundations for offshore structures. Most previous investigations of such