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Feng Deng, Xiaoyuan Sun, Fenghua Chi and Ruixue Ji
In recent years, more attention has been paid to vehicles that can travel between air and water, known as trans-media vehicles. They are often designed as cylindrical bodies in order to reduce the impact load during water entry. In this paper, the water-...
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Lite Zhang, Zhuokai Wang and Huixia Jia
The study of the water entry of successively fired projectiles under a wave environment is of great significance for the development and application of supercavitation weapons. In this paper, the supercavitating flow field of two successively fired proje...
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Xiaohan Chen, Bing Liu and Guigao Le
Marine submersible buoy systems are widely-used equipment for ocean resource development. The marine submersible buoy system studied in this paper consists of the submersible buoy, the battery compartment, the anchor block, the mooring line, and the powe...
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Hairui Zhao, Yao Shi, Guang Pan and Qiaogao Huang
Aiming at the problem of high-speed entry of vehicles with a diameter of 200 mm, a numerical model of high-speed entry of vehicles is established based on the arbitrary Lagrange?Euler (ALE) algorithm, and the numerical simulation of high-speed entry of f...
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Zhe Xiao, Michael A. Lacasse, Maurice Defo and Elena Dragomirescu
The moisture load in wall assemblies is typically considered as 1% of the Wind Driving Rain (WDR) load that is deposited on the surface of wall assemblies as specified in the ASHRAE-160 standard whereas this ratio has been shown to be inaccurate as compa...
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Guanghua He, Binyang Xie, Wei Wang, Shuang Liu and Penglin Jing
This paper investigates the influence of ship-loading condition on slamming during water entry. Three typical sections of the S-175 container ship, namely the bow, parallel middle body and stern, under three different loading conditions are studied. Full...
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Qiang Li and Lin Lu
In this study, a detailed analysis of the influences of cavitation nose structure of a high-speed projectile on the trajectory stability during the water-entry process was investigated numerically. The Zwart-Gerber-Belamri (Z-G-B) cavitation model and th...
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Pengyao Yu, Cong Shen, Chunbo Zhen, Haoyun Tang and Tianlin Wang
Motivated by the application of water-entry problems in the air-drop deployment of a spherical oceanographic measuring device, the free-fall water entry of a sphere was numerically investigated by using the transient Reynolds-averaged Navier?Stokes (RANS...
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Riccardo Panciroli, Tiziano Pagliaroli and Giangiacomo Minak
Elastic bodies entering water might experience fluid–structure interaction phenomena introduced by the mutual interaction between structural deformation and fluid motion. Cavity formation, often misleadingly named cavitation, is one of these. This ...
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Riccardo Panciroli, Tiziano Pagliaroli and Giangiacomo Minak
Elastic bodies entering water might experience fluid–structure interaction phenomena introduced by the mutual interaction between structural deformation and fluid motion. Cavity formation, often misleadingly named cavitation, is one of these. This ...
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Riccardo Panciroli, Tiziano Pagliaroli and Giangiacomo Minak
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Jun Wei, Yong-Bai Sha, Xin-Yu Hu, Jin-Yan Yao and Yan-Li Chen
A trans-medium aircraft is a new concept aircraft that can both dive in the water and fly in the air. In this paper, a new type of water?air multi-medium span vehicle is designed based on the water entry and exit structure model of a multi-rotor UAV. Bas...
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Shaoyang Qiu, Hongxiang Ren and Haijiang Li
In order to improve the accuracy of the freefall of lifeboat motion simulation in a ship life-saving simulation training system, a mathematical model using the strip theory and Kane?s method is established for the freefall of the lifeboat into the water ...
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Luis Miguel Silva-Novoa Sanchez, Jeltsje Sanne Kemerink-Seyoum and Margreet Zwarteveen
Using the concept of sociotechnical tinkering, this paper provides detailed empirical observations about the everyday practices of design, construction, operation, maintenance and use of a piped water supply network in a small town in Mozambique. We use ...
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Ruosi Zha, Kai Wang, Jianglong Sun, Haiwen Tu and Qi Hu
In this paper, the ditching performance of a seaplane model on calm water and a uniform water current coupled with wind was numerically investigated. The overset grid technique was applied to treat the large amplitude of the body motions of the seaplane ...
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Carmen Rojo, Dalia Lumbi, Ariel Aguilar, Karen Palacios, Katherine Osorio and Pilar Ruiz
Estuaries are coastal wetlands that deserve special attention because they are vulnerable, biodiversity- and service-rich environments. However, estuaries of tropical areas have been scarcely studied regarding water quality and biodiversity in spite of s...
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Peiyin Yuan, Pingyi Wang and Yu Zhao
Large-scale instability of a landslide body, sliding down a bank slope and entering water at a high speed, arouses landslide surges. Taking the water entry point as a source point, they spread rapidly to surrounding areas, increasing the danger risk of v...
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Morgan C. MacDonald, Mark Elliott, Terence Chan, Annika Kearton, Katherine F. Shields, Jamie Bartram and Wade L. Hadwen
The investigation of multiple sources in household water management is considered overly complicated and time consuming using paper and pen interviewing (PAPI). We assess the advantages of computer-assisted personal interviewing (CAPI) in Pacific Island ...
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Daniel G. Neary and Brenda R. Baillie
Herbicide use varies both spatially and temporally within managed forests. While information exists on the effects of herbicide use on water quality at the site and small catchment scale, little is known about the cumulative effects of herbicide use at t...
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Daniel G. Neary, Brenda R. Baillie
Pág. 1 - 25
Herbicide use varies both spatially and temporally within managed forests. While information exists on the effects of herbicide use on water quality at the site and small catchment scale, little is known about the cumulative effects of herbicide use at t...
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