WIND-GENERATED WAVE DIFFRACTION BY BREAKWATER GAP
نویسندگان
چکیده
منابع مشابه
NUMERICAL MODELING OF DIFFRACTION THROUGH A BREAKWATER GAP
Wave diffraction is a very important phenomenon in marine engineering and several models have been developed for its simulation. The new version of SWAN, a third generation spectral model, includes an approximation to wave diffraction. The approximation is based on the mild-slope equation for refraction and diffraction, omitting phase information. The objective this paper is to evaluate the per...
متن کاملDiffraction of water waves by a segmented permeable breakwater
The linearized theory of water waves is used to examine the diffraction of an incident wave by a permeable breakwater that consists of a number of distinct elements. Under the assumption that the wavelength is much greater than the thickness, each element is replaced by a thin structure and the permeability is modeled by a suitable boundary condition applied on its surface. The diffracted wave ...
متن کاملSensitivity Analysis of Mike21-BW Diffraction Model by using Breakwater Reflection Coefficient
DHI-Mike Software is one of best softwares describing water wave diffraction in onshore/offshore concepts. Diffraction happens due to obstacles along wave direction and has an important role in designing structures. The scope of this study is to show the relation between Porosity Coefficient and its effects on Diffraction Coefficient (Cd) by means of a suitable and verified numerical model. Por...
متن کاملSpace charge generated by wind tunnel fires
Ž . Plume clouds resulting from wildland fires pyrocumulus sometimes produce lightning discharges to ground. These discharges were found to carry positive charge to ground exclusively in several cases. Emission of space charge was observed from woody materials burned in the presence of an external electric field. Measurements done in a large wind tunnel for this study confirm and extend measure...
متن کاملObservations of polar patches generated by solar wind Alfve n wave coupling to the dayside magnetosphere
A long series of polar patches was observed by ionosondes and an all-sky imager during a disturbed period (Kp 7and IMF Bz < 0). The ionosondes measured electron densities of up to 9 ́ 10 m in the patch center, an increase above the density minimum between patches by a factor of 4.5. Bands of F-region irregularities generated at the equatorward edge of the patches were tracked by HF radars. Th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Coastal Engineering Proceedings
سال: 1978
ISSN: 2156-1028,0589-087X
DOI: 10.9753/icce.v16.34