Gas cushioning in liquid-solid impacts

Snizhana Ross; Peter Daniel Hicks; Oleksandr Menshykov

Gas cushioning in liquid-solid impacts

Snizhana Ross, Peter Daniel Hicks, Oleksandr Menshykov

Research output: Chapter in Book/Report/Conference proceeding › Published conference contribution

Abstract

The normal impact of a rigid, shallow body of small deadrise angle with an incompressible, inviscid liquid is investigated. Models of pre-impact air cushioning prior to touchdown are constructed for both parabolic and wedge shaped bodies. These models produce a system of integro-differential equations describing the free-surface and pressure evolution, which is investigated numerically. As impact approaches a pressure build-up occurs in the gas, as the gas is forced out of the path of impactor. This leads to pre-impact free-surface deformations, delays in touchdown and a pocket of gas trapped beneath the impactor, which have consequences for the post-touchdown impact behaviour.

Original language	English
Title of host publication	Proceedings of the 10th UK Conference on Boundary Integral Methods
Editors	Paul Harris
Publisher	University of Brighton
Pages	17-27
Number of pages	10
ISBN (Print)	978-1-910172-05-6
Publication status	Published - 2015
Event	The Tenth UK Conference on Boundary Integral Methods - University of Brighton, Brighton, United Kingdom Duration: 13 Jul 2015 → 14 Jul 2015 Conference number: 10 http://www.cem.brighton.ac.uk/ukbim2015

Conference

Conference	The Tenth UK Conference on Boundary Integral Methods
Abbreviated title	UKBIM10
Country/Territory	United Kingdom
City	Brighton
Period	13/07/15 → 14/07/15
Internet address	http://www.cem.brighton.ac.uk/ukbim2015

The Tenth UK Conference on Boundary Integral Methods
Oleksandr Menshykov (Speaker)
13 Jul 2015 → 14 Jul 2015
Activity: Attending or organising an event › Attending/organising a Conference

Cite this

@inproceedings{00be5ab36ac44a7b9a659e61bb02b550,

title = "Gas cushioning in liquid-solid impacts",

abstract = "The normal impact of a rigid, shallow body of small deadrise angle with an incompressible, inviscid liquid is investigated. Models of pre-impact air cushioning prior to touchdown are constructed for both parabolic and wedge shaped bodies. These models produce a system of integro-differential equations describing the free-surface and pressure evolution, which is investigated numerically. As impact approaches a pressure build-up occurs in the gas, as the gas is forced out of the path of impactor. This leads to pre-impact free-surface deformations, delays in touchdown and a pocket of gas trapped beneath the impactor, which have consequences for the post-touchdown impact behaviour.",

author = "Snizhana Ross and Hicks, {Peter Daniel} and Oleksandr Menshykov",

year = "2015",

language = "English",

isbn = "978-1-910172-05-6",

pages = "17--27",

editor = "Paul Harris",

booktitle = "Proceedings of the 10th UK Conference on Boundary Integral Methods",

publisher = "University of Brighton",

note = "The Tenth UK Conference on Boundary Integral Methods, UKBIM10 ; Conference date: 13-07-2015 Through 14-07-2015",

url = "http://www.cem.brighton.ac.uk/ukbim2015",

}

TY - GEN

T1 - Gas cushioning in liquid-solid impacts

AU - Ross, Snizhana

AU - Hicks, Peter Daniel

AU - Menshykov, Oleksandr

N1 - Conference code: 10

PY - 2015

Y1 - 2015

N2 - The normal impact of a rigid, shallow body of small deadrise angle with an incompressible, inviscid liquid is investigated. Models of pre-impact air cushioning prior to touchdown are constructed for both parabolic and wedge shaped bodies. These models produce a system of integro-differential equations describing the free-surface and pressure evolution, which is investigated numerically. As impact approaches a pressure build-up occurs in the gas, as the gas is forced out of the path of impactor. This leads to pre-impact free-surface deformations, delays in touchdown and a pocket of gas trapped beneath the impactor, which have consequences for the post-touchdown impact behaviour.

AB - The normal impact of a rigid, shallow body of small deadrise angle with an incompressible, inviscid liquid is investigated. Models of pre-impact air cushioning prior to touchdown are constructed for both parabolic and wedge shaped bodies. These models produce a system of integro-differential equations describing the free-surface and pressure evolution, which is investigated numerically. As impact approaches a pressure build-up occurs in the gas, as the gas is forced out of the path of impactor. This leads to pre-impact free-surface deformations, delays in touchdown and a pocket of gas trapped beneath the impactor, which have consequences for the post-touchdown impact behaviour.

M3 - Published conference contribution

SN - 978-1-910172-05-6

SP - 17

EP - 27

BT - Proceedings of the 10th UK Conference on Boundary Integral Methods

A2 - Harris, Paul

PB - University of Brighton

T2 - The Tenth UK Conference on Boundary Integral Methods

Y2 - 13 July 2015 through 14 July 2015

ER -

Gas cushioning in liquid-solid impacts

Abstract

Conference

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The Tenth UK Conference on Boundary Integral Methods

Cite this