نتایج جستجو برای: water wave effect
تعداد نتایج: 2293071 فیلتر نتایج به سال:
Water hammer is one of the unsteady flows in urban water distribution networks, which has been of great importance due to the damage caused to the pipeline and has always been of interest to researchers. In this study, the phenomenon of water hammer due to the sudden closure of the valve in the downstream end has been investigated in a laboratory and using a numerical model. In the laboratory s...
A numerical model has been introduced to simulate wave interaction with oscillating water column (OWC) in two dimensional vertical plane. Two-dimensional Navier-stokes equations have been used. To track free surface, Volume of fluid method has been employed. Also a porous wall is situated at the beginning of the canal to absorb the reflected waves. It’s valuable to mention that the Poisson equa...
The study of wave and its propagation on the water surface is among significant phenomena in designing quay, marine and water structures. Therefore, in order to design structures which are exposed to direct wave forces, it is necessary to study and simulate water surface height and the wave forces on the structures body in different boundary conditions. In this study, the propagation of static ...
In general, Lay and Tow methods are the two most common methods of offshore pipeline installation. In the shallow waters, considering the restrictions of Lay barge, Tow method is usually more appropriate. In this method, pipestring is fabricated on-shore and then it is launched into water. Then, according to environmental conditions and restrictions, the pipeline is towed to the installation s...
Doppler effect is used to measure the relative speed of a moving target with respect to the radar, and is also used to interpret the frequency shift of the backscattering from the ocean wave according to the water-wave phase velocity. The widely known relationship between the Doppler shift and the water-wave phase velocity was deduced from the scattering measurements data collected from actual ...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
It was revealed that every matter has its accompanying wave. The wave part of the matter contains information(called information wave in the paper), and can be transferred to water physically by shaking or tapping, and thus serially diluted water have been used to stimulate natural healing power in traditional homeopathy. This way of transferring the wave part of the mater to water has been alr...
چکیده ندارد.
In this research study, effects of the draught and sheet height in pontoon floating sheet-breakwaters on the transmission and reflection coefficients against irregular sea waves was investigated. The project has been carried out using an experimental method within a wave flume of Soil Conservation and Watershed Research Institute. The incident waves were irregular and the wave spectrum was JONS...
Given the increasing importance of vessels carrying liquefied natural gas (LNG), the high cost of incidents and also projects related to the design and construction of LNG transport vessels requires further investigation of fluid sloshing inside tanks of these vessels. This paper, reports the towing tank, equipped with a wave-maker, test results on a one-to-176 model of a product carrier with a...
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