Results 1 to 10 of about 372,230 (299)

Numerical and experimental investigation on the oblique water entry of cylinder [PDF]

Science Progress, 2020
The study of water entry cavity and the analysis of load characteristics are hot topics in water entry research. The coupled Euler–Lagrange method is used to carry out simulation research on the water entry process of a cylinder.
Longquan Sun, Duliang Wang, Yingyu Chen, Guoxun Wu   +3 more
doaj   +3 more sources

Water entry and exit in nature: review. [PDF]

Interface Focus
Aquatic animals that live in water often leap out to catch prey in the air, while terrestrial and aerial animals dive into water to hunt aquatic animals. Some animals locomote on the water surface or lap water by repeated slamming and water-exiting motions.
Jung S.
europepmc   +3 more sources

Research on the water-entry attitude of a submersible aircraft. [PDF]

Springerplus, 2016
The water entry of a submersible aircraft, which is transient, highly coupled, and nonlinear, is complicated. After analyzing the mechanics of this process, the change rate of every variable is considered. A dynamic model is build and employed to study vehicle attitude and overturn phenomenon during water entry. Experiments are carried out and a method
Xu B, Li Y, Feng J, Hu J, Qi D, Yang J.
europepmc   +4 more sources

Simulation and experimental research on trans-media vehicle water-entry motion characteristics at low speed. [PDF]

PLoS ONE, 2017
The motion characteristics of trans-media vehicles during the water-entry process were explored in this study in an effort to obtain the optimal water-entry condition of the vehicle for developing a novel, single control strategy integrating underwater ...
Jian Yang, Yongli Li, Jinfu Feng, Junhua Hu, An Liu   +4 more
doaj   +2 more sources

Numerical investigation of water-entry characteristics of high-speed parallel projectiles

International Journal of Naval Architecture and Ocean Engineering, 2021
In this study, an attempt has been made to investigate the water-entry characteristics of the high-speed parallel projectile numerically. The shear stress transport k-ω turbulence model and the Zwart-Gerber-Belamri cavitation model based on the Reynolds ...
Lin Lu, Chen Wang, Qiang Li, Prasanta K. Sahoo   +3 more
doaj   +3 more sources

Side-by-Side Comparison of Post-Entry Quarantine and High Throughput Sequencing Methods for Virus and Viroid Diagnosis

Biology, 2022
Rapid and safe access to new plant genetic stocks is crucial for primary plant industries to remain profitable, sustainable, and internationally competitive.
Marie-Emilie A. Gauthier, Ruvini V. Lelwala, Candace E. Elliott, Craig Windell, Sonia Fiorito, Adrian Dinsdale, Mark Whattam, Julie Pattemore, Roberto A. Barrero   +8 more
doaj   +1 more source

Numerical Study on the Water Entry of a Freely Falling Unmanned Aerial-Underwater Vehicle

Journal of Marine Science and Engineering, 2023
The unmanned aerial–underwater vehicle (UAUV) is a new type of vehicle that can fly in the air and cruise in water and is expected to cross the free water surface several times to perform continuous uninterrupted observation and sampling.
Liyang Dong, Zhaoyu Wei, Hangyu Zhou, Baoheng Yao, Lian Lian   +4 more
doaj   +1 more source

Air-Backed Aluminum Shells Subjected to Underwater Penetration: Torpedo Interception Simulations

Journal of Marine Science and Engineering, 2023
Underwater torpedoes have become a serious threat to ocean liners and warships, and the interception against attacking torpedoes is always the hotspot in marine engineering.
Chucai Peng, Chufan Ding, Bin Chen, Xichen Sun, Weibing Li, Taotao Qin, Jun Feng   +6 more
doaj   +1 more source

Numerical Simulation Research on the Anchor Last Deployment of Marine Submersible Buoy System Based on VOF Method

Journal of Marine Science and Engineering, 2022
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 ...
Xiaohan Chen, Bing Liu, Guigao Le
doaj   +1 more source

A Numerical Study on the Water Entry of Cylindrical Trans-Media Vehicles

Aerospace, 2022
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.
Feng Deng, Xiaoyuan Sun, Fenghua Chi, Ruixue Ji   +3 more
doaj   +1 more source