Results 11 to 20 of about 372,230 (299)
Viscoplastic water entry [PDF]
Journal of Fluid Mechanics, 2019 The impact of viscoplastic droplets on a free surface of water is studied. The droplet undergoes an elasto-plastic deformation at the early stages of water entry. At large time, the yield stress dominates; therefore, the droplet solidifies and reaches an equilibrium shape.
Maziyar Jalaal +2 more
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Xibei Gongye Daxue Xuebao, 2021 Autonomous underwater vehicle will be subjected to a huge impact load during high speed water entry, which will damage the structure and the internal instruments of the vehicle.
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Water entry of deformable spheres [PDF]
Journal of Fluid Mechanics, 2017 When a rigid body collides with a liquid surface with sufficient velocity, it creates a splash curtain above the surface and entrains air behind the sphere, creating a cavity below the surface. While cavity dynamics has been studied for over a century, this work focuses on the water entry characteristics of deformable elastomeric spheres, which has not
Randy C. Hurd +5 more
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, 2008 American Physical Society Division of Fluid Dynamics Gallery of Fluid Motion Video Entry Replaced previous version because abstract had LaTex markup and was too ...
Truscott, Tadd T. +2 more
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Investigation of water entry impact forces on airborne-launched AUVs
Engineering Applications of Computational Fluid Mechanics, 2016 Airborne-launched AUVs withstand great fluid impact force at the early stage when entering the water, which may cause damage to their structure and inner components in severe cases.
Duo Qi +4 more
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Journal of Fluid Mechanics, 2023 It is known that the water entry of a body with a recessed, cupped nose can suppress the splash and air cavity typically observed for solid body entry (Mathai, Govardhan & Arakeri, Appl. Phys. Lett., vol. 106, 2015, 064101). However, the interplay between the captive gas in the cup, the cavity and the splash is quite subtle and has not been ...
Jesse Belden +5 more
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Water entry and related problems
, 2002 In this thesis we formalize, reconcile and generalize some existing mathematical models for deep- and shallow-water entry at small and zero deadrise angles for normal and oblique impact velocities. Our method throughout is to exploit the existence of one or more small parameters via the method of matched asymptotic expansions.
Oliver, J. M.
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Experimental study on water-entry cavity and trajectory of vehicle with asymmetric nose shape
Xibei Gongye Daxue Xuebao, 2021 Different nose shape can cause a significant influence on the water entry trajectory and cavity. In order to study the evolution characteristics of cavity and trajectory of asymmetric nose in the process of water entry, based on the high-speed ...
Hua Yang +3 more
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Numerical simulation of vibration and noise characteristics of water entry impact of amphibious aircraft [PDF]
Zhongguo Jianchuan YanjiuObjectiveIn response to the analysis requirements of the vibration and noise caused by the impact of amphibious aircraft entering the water, this paper studies the influence of forward speeds and entry angles on the water entry impact vibration and noise
Jiawei XU +5 more
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The Challenge of Water Entries
International Journal of Aquatic Research and Education, 2022 The authors presented a poster at the International Life Saving Foundation's World Conference on Drowning Prevention 2019 in Durban, South Africa titled, "Finding an Aquatic Voice," that was the basis for this article. The conference theme was "Growing Global Drowning Prevention Capacity,” and the aim of our poster’s contribution to the conference was ...
Andrews, Andrea S., Baker, Shayne D.
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