نتایج جستجو برای: submarine pipeline
تعداد نتایج: 33964 فیلتر نتایج به سال:
To investigate the different influencing characteristics of local scour around submarine pipelines, hydrodynamic and sediment transport two-dimensional models based on Flow-3D are used to numerically simulate pipeline under steady currents. An RNG k-ε turbulence model is applied turbulent flow field pipeline. The instantaneous shear stress bed surface taken as starting transporting conditions s...
The occurrence of a buried submarine pipeline crossing channel becoming damaged by the impact falling anchor is more common. It important to analyze dynamic response pipelines exposed such and develop effective protection methods ensure safe operation anchors. In this study, different methods, including pure rock, concrete mattress + rock rubber pad, compound flexible pad are physically tested....
Nowadays, the numerical analysis of submarine pipelines offshore oil and gas industry is a big challenge in engineering design. A simple, fast accurate tool proposed this article based on macroelement concept. The novel within framework hypoplasticity can consider static monotonic combined (multi-directional) loads for shallow embedded clay. incremental nonlinear constitutive formulas are defin...
The horseshoe vortex generated around the sail-body junction of a submarine has an important influence on the uniformity of the submarine wake at the propeller and hydrodynamic noise. The influence of the horseshoe vorex on the submarine performance is not negligible. A suitable way to reduce the effects of this separated flow is to use vortex generators. The main goal of the present study is t...
Submarine melt can account for substantial mass loss at tidewater glacier termini. However, the processes controlling submarine melt are poorly understood due to limited observations of submarine termini. Here at a tidewater glacier in central West Greenland, we identify subglacial discharge outlets and infer submarine melt across the terminus using direct observations of the submarine terminus...
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