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Yongcheng Li, Jianxin Hu, Qiuzhuo Zhao, Ziying Pan and Zheng Ma
The propulsive performance of a bio-inspired autonomous underwater glider (AUG) with active twin undulatory wings undergoing undulatory motion was investigated by numerically solving the viscous incompressible Navier?Stokes equations, coupled with the im...
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Younes Menni, Ali J. Chamkha, Houari Ameur, Mustafa Inc
Pág. 212 - 223
Improving the hydrodynamic characteristics of STHECs (Shell-and-Tube Heat Exchanger Channels) by using BVGs (Baffle-type Vortex Generators) is among the common passive methods due to their proved efficiency. In this computational investigation, the ...
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Lei Wang, Xun Zhang, Rong Wan, Qingchang Xu and Guangrui Qi
An orthogonal experiment was conducted to study the effects of the aspect ratio, camber of the fore wing, and gap ratio of front and rear wing panels on the hydrodynamic performance of double-vane otter boards. The design of the orthogonal experiment com...
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Jinjiang Yao, Xingwei Zhen, Yi Huang and Wenhua Wang
The Next Generation Subsea Production System (NextGen SPS) is considered as a competitive alternative system used for offshore petroleum production in ultra-deep sea based on the artificial seabed technology. The Immersed Buoyant Platform (IBP), which is...
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Pietro Casalone, Oronzo Dell?Edera, Beatrice Fenu, Giuseppe Giorgi, Sergej Antonello Sirigu and Giuliana Mattiazzo
The hydrodynamic investigation of a hull?s performance is a key aspect when designing a new prototype, especially when it comes to a competitive/racing environment. This paper purports to perform a fully nonlinear unsteady Reynolds Averaged Navier-Stokes...
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Demetrios Hermides, Panayota Makri, George Kontakiotis and Assimina Antonarakou
This study focuses on the hydrogeological conditions in the coastal (Thriassion plain) and submarine (Eleusis Gulf) environment of West Attica, Greece. Up to now, the predominant aspect for the Thriassion plain groundwater?hosted within the Neogene-Quate...
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Roberto Sorgente, Dario La Guardia, Alberto Ribotti, Marco Arrigo, Alessandro Signa, Federica Pessini, Gennaro Oliva, Andrea Pes, Angelo Perilli and Antonia Di Maio
Oil spill models are used to simulate the evolution of an oil slick that occurs after an accidental ship collision, malfunctioning of oil extraction platforms, or illegal discharges intentionally released by ships into the marine environment. We present ...
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Xifeng Gao, Zengwei Xu, Wanhai Xu and Ming He
Laboratory tests were carried out to investigate the cross-flow (CF) dynamic responses and hydrodynamic forces of a flexible pipe that subjected to vortex-induced vibration (VIV). The pipe had a critical mass ratio of 0.54 and an aspect ratio of 181.8. T...
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Srinivasa Rao Nadiminti, Adiyapatham Kandasamy
Pág. 167 - 179
A finite difference analysis of the entrance region flow heat transfer of Bingham fluid in concentric annuli with rotating inner wall has been carried out. The analysis is made for simultaneously developing hydrodynamic and thermal boundary layer in conc...
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Liushuai Cao, Yanyan Pan, Gang Gao, Linjie Li and Decheng Wan
Wakes produced by underwater vehicles, particularly submarines, in density-stratified fluids play a pivotal role across military, academic, and engineering domains. In comparison to homogeneous fluid environments, wakes in stratified flows exhibit distin...
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Minglong Lu, Shaopeng Li and Teng Wu
The extreme shallow-water waves during a tropical cyclone are often simplified to solitary waves. Considering the lack of simulation tools to effectively and efficiently forecast wave forces on coastal box-girder bridges during tropical cyclones, this st...
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Marco Trofa and Gaetano D?Avino
Solid?liquid separation is a key unit operation in the wastewater treatment, generally consisting of coagulation and flocculation steps to promote aggregation and increase the particle size, followed by sedimentation, where the particles settle due to th...
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