this paper presents a k- turbulence model for simulation of steady current and itsinduced vortex shedding caused by the presence of an offshore pipeline. performance of the modelaround a circular cylinder above a wall with gap to diameter ratios of 0.1, 0.35 and 0.5 underdifferent flow regimes with reynolds numbers of 1500, 2500 and 7000 is studied. the flow field iscomputed with solving the re...

The management of oil-product pipelines represents a critical task in the daily operation of petroleum supply chains. Efficient computational tools are needed to schedule pipeline operations in a reliable and cost-effective manner. This work presents a novel discrete event simulation system for the detailed scheduling of a multiproduct pipeline consisting of a sequence of pipes that connects a ...

A broad selection of recent literature on the effects of oil on marine ecosystems is reviewed. The focus is on studies on crude oil. and the results are discussed with the purpose of providing a summary of findings that will be a useful reference for administrators and policy makers involved in decisions concerning petroleum developments and related activities. The characteristics of crude oil ...

Today, pipelines are the safest and most economical way to transport petroleum products one of key components modern energy infrastructure. Nevertheless, pipeline systems associated with certain risks that can lead environmental disasters. The idea carrying out this study was initiated by results survey overpasses long-used oil laid in mountainous area Carpathian region. Defects such as a chang...

Multiphase flows are of paramount importance in the oil and gas industry, considering that most petroleum industries produce transport simultaneously. However, systematic research on pipeline leakage conveying more than one phase at a time is lacking attention. In this work, numerical method proposed to investigate effect two-phase gas-liquid leak flow behaviour subsea natural pipeline. The res...

the present sought to draw a comparison between model predictive control performance and two other controllers named simple pi and selective pi in controlling large-scale natural gas transport networks. a nonlinear dynamic model of representative gas pipeline was derived from pipeline governing rules and simulated in simulink® environment of matlab®. control schemes were designed to provide a s...

The recent expansion in the production of shale petroleum crude oil, combined with the lack of new pipeline construction, has placed the railroads at the center stage for safe and efficient transport of very large volumes of this commodity. Petroleum crude oil poses fire risk in the event of train accidents. The consequence modeling based on the US DOT Emergency Response Guidebook (ERG) or ALOH...