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Huan Wang, Ling Zhou and Deyou Liu
In this study, the phenomenon of column separation that occurs in the downstream pipeline of a rapid closure valve is experimentally investigated. Special attention is paid to the dynamic behavior of the formation, growth, and collapse processes of cavit...
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Seong-Wook Han, Yeun Chul Park, Ho-Kyung Kim and Soo-Chang Kang
Plastic deformation during the manufacture process of electric resistance welded (ERW) pipe determines the stress?strain relationship of the steel pipe, which affects the collapse pressure of offshore pipelines. To track the deformation history of the pi...
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Gil Bazanini, Valdir Barbosa Bezerra, Alain Marie Bernard Passerat de Silans (Author)
Pág. 773 - 778
Numerical simulations of the collapse of bubbles (or cavities) are shown, using the finite difference method. Simulations were made using: water, benzene, glycerin, and mercury. Pressure fields values are calculated in an area of 800 x 800 mm, first for ...
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Seong-Wook Han, Yeun Chul Park, Soo-Chang Kang, Sungmoon Jung and Ho-Kyung Kim
The demand for electric resistance welded (ERW) pipe for deep-water installation has increased, which necessitates a higher degree of accuracy in evaluating the strength of pipe in order to satisfy the design limit state, otherwise referred to as the col...
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Jung Min Sohn, Spyros Hirdaris, Jani Romanoff and Sang Jin Kim
Submarine hulls are pressure vessels for which excellent structural integrity under underwater pressure loads is essential. The use of light-weight materials contributes to reduced fuel consumption, improved speed, and increased payload while strength pr...
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Xiaofeng Sun, Qiaobo Hu, Yanlong Li, Mingtao Chen and Yajuan Zhang
The mechanical properties of hydrate-bearing strata in clayey-silt sediments are significantly different from those of either conventional reservoirs or hydrate-bearing sandy sediments, which poses great challenges for wellbore stability analyses. The st...
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Tiezhi Sun, Xiaoshi Zhang, Jianyu Zhang and Cong Wang
High-speed underwater vehicles are subjected to complex multiphase turbulent processes, such as the growth, development, shedding, and collapse of cavitation bubbles. To study the cavity evolution and pressure pulsation characteristics, in this paper, cl...
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Jianxing Yu, Weipeng Xu, Yang Yu, Fei Fu, Huakun Wang, Shengbo Xu and Shibo Wu
The objective of this study was to investigate the performance of pipelines repaired with carbon-fibre-reinforced polymer (CFRP) under external pressure. The repaired pipeline experienced defects in terms of thinning of its local inner wall. The three-di...
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Francisco Alves Pereira, Fabio Di Felice and Francesco Salvatore
An experimental study is carried out in a cavitation tunnel on a propeller operating downstream of a non-uniform wake. The goal of this work is to establish quantitative correlations between the near pressure field and the cavitation pattern that takes p...
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Yu Li, Jingyi Ouyang, Yong Peng and Yang Liu
Cavitation happening inside an inclined V-shaped corner is a common and important phenomenon in practical engineering. In the present study, the lattice Boltzmann models coupling velocity and temperature fields are adopted to investigate this complex col...
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Ruoxuan Li, Bai-Qiao Chen and C. Guedes Soares
The effect of ovality length on imperfect sandwich pipes is investigated using the finite element method in the scenario of local buckling under external pressure. First, the finite element model of the imperfect sandwich pipelines is established in ANSY...
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Oscar E. Coronado-Hernández, Vicente S. Fuertes-Miquel and Fredy N. Angulo-Hernández
Recently, emptying processes have been studied in experimental facilities in pipelines, but there is a lack regarding applications in actual pipelines, which permits establishing the risk of collapse because of sub-atmospheric pressure occurrence. This r...
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Song Zhang, Wei Lin, Hao Xu and Tiezhi Sun
The presence of ice floes on the water surface has a significant impact on the complex hydrodynamic process of submersible ventilated vehicles exiting the water. In this paper, we propose numerical simulations based on computational fluid dynamics to inv...
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Jing Luo, Weilin Xu, Jun Deng, Yanwei Zhai and Qi Zhang
As a hydrodynamic phenomenon, cavitation is a main concern in many industries such as water conservancy, the chemical industry and medical care. There are many studies on the generation, development and collapse of cavitation bubbles, but there are few s...
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Chiemela Victor Amaechi, Cole Chesterton, Harrison Obed Butler, Zewen Gu, Agbomerie Charles Odijie, Facheng Wang, Xiaonan Hou and Jianqiao Ye
Currently, the properties of composites have been harnessed on pipelines in the marine offshore industry. In this study, marine bonded composite hose (MBCH) is presented. It is aimed at understanding the stress/strain distribution on marine bonded hoses ...
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Diego Muniz Benedetti and Carlos Alberto Gurgel Veras
An instrumentation system for in-situ measurement of the inner-outer pressure differential at the upper and lower surfaces of dynamically inflatable wings is designed and tested, revealing important insights into the aerodynamic characteristics of inflat...
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Hipólito Sousa and Rui Sousa
Bowing is an uncommon pathology that can affect marble stone cladding of building façades, causing a large permanent deflection and the degradation of the flexural and anchoring strength of the stone slabs, which can lead to the cladding falling from the...
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Gábor Györke, Attila R. Imre
Pág. 333 - 339
Loss of coolant accidents (LOCA) are a serious type of accidents for nuclear reactors, when the integrity of the liquid-loop breaks. While in traditional pressurized water reactors, pressure drop can cause flash boiling, in Supercritical-Water Cooled rea...
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Oscar E. Coronado-Hernández, Vicente S. Fuertes-Miquel, Mohsen Besharat, Helena M. Ramos
Pág. 1 - 15
The emptying procedure is a common operation that engineers have to face in pipelines. This generates subatmospheric pressure caused by the expansion of air pockets, which can produce the collapse of the system depending on the conditions of the installa...
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Oscar E. Coronado-Hernández, Vicente S. Fuertes-Miquel, Mohsen Besharat and Helena M. Ramos
The emptying procedure is a common operation that engineers have to face in pipelines. This generates subatmospheric pressure caused by the expansion of air pockets, which can produce the collapse of the system depending on the conditions of the installa...
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