On the motion of a falling circular cylinder in flows after water entry

Xujian Lyu; Zhaoyu Wei; Hui Tang; T. H. New; Hua Li

doi:10.1117/12.2081157

On the motion of a falling circular cylinder in flows after water entry

Xujian Lyu
, Zhaoyu Wei
, Hui Tang
, T. H. New
, Hua Li

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

14 Citations (Scopus)

Abstract

This paper reports an experimental investigation on the motion of a circular cylinder after it horizontally enters into a water flow with a certain slamming speed. A smart cylinder-releasing mechanism is designed to enable repeatable release of the cylinder. A high-speed camera is used to record the cylinder's motion. The effects of three factors are investigated, including the cylinder-to-water density ratio, water speed and slamming speed of the cylinder. Data for several cases with either a solid cylinder or a hollow cylinder are obtained and compared. Variations of both horizontal and vertical displacements against these factors are presented and analyzed. It is found that the trajectories of the hollow cylinder collapse at the initial stage of submerging in water when the velocity ratios are the same.

Original language	English
Title of host publication	International Conference on Experimental Mechanics 2014
Publisher	SPIE
Volume	9302
ISBN (Electronic)	9781628413885
DOIs	https://doi.org/10.1117/12.2081157
Publication status	Published - 1 Jan 2015
Event	International Conference on Experimental Mechanics 2014, ICEM 2014 - Holiday Inn Atrium Hotel, Singapore, Singapore Duration: 15 Nov 2014 → 17 Nov 2014

Conference

Conference	International Conference on Experimental Mechanics 2014, ICEM 2014
Country/Territory	Singapore
City	Singapore
Period	15/11/14 → 17/11/14

Keywords

Freely falling circular cylinder
High-speed camera
Water tunnel

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

More information

10.1117/12.2081157

Cite this

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title = "On the motion of a falling circular cylinder in flows after water entry",

abstract = "This paper reports an experimental investigation on the motion of a circular cylinder after it horizontally enters into a water flow with a certain slamming speed. A smart cylinder-releasing mechanism is designed to enable repeatable release of the cylinder. A high-speed camera is used to record the cylinder's motion. The effects of three factors are investigated, including the cylinder-to-water density ratio, water speed and slamming speed of the cylinder. Data for several cases with either a solid cylinder or a hollow cylinder are obtained and compared. Variations of both horizontal and vertical displacements against these factors are presented and analyzed. It is found that the trajectories of the hollow cylinder collapse at the initial stage of submerging in water when the velocity ratios are the same.",

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}

TY - GEN

T1 - On the motion of a falling circular cylinder in flows after water entry

AU - Lyu, Xujian

AU - Wei, Zhaoyu

AU - Tang, Hui

AU - New, T. H.

AU - Li, Hua

PY - 2015/1/1

Y1 - 2015/1/1

N2 - This paper reports an experimental investigation on the motion of a circular cylinder after it horizontally enters into a water flow with a certain slamming speed. A smart cylinder-releasing mechanism is designed to enable repeatable release of the cylinder. A high-speed camera is used to record the cylinder's motion. The effects of three factors are investigated, including the cylinder-to-water density ratio, water speed and slamming speed of the cylinder. Data for several cases with either a solid cylinder or a hollow cylinder are obtained and compared. Variations of both horizontal and vertical displacements against these factors are presented and analyzed. It is found that the trajectories of the hollow cylinder collapse at the initial stage of submerging in water when the velocity ratios are the same.

AB - This paper reports an experimental investigation on the motion of a circular cylinder after it horizontally enters into a water flow with a certain slamming speed. A smart cylinder-releasing mechanism is designed to enable repeatable release of the cylinder. A high-speed camera is used to record the cylinder's motion. The effects of three factors are investigated, including the cylinder-to-water density ratio, water speed and slamming speed of the cylinder. Data for several cases with either a solid cylinder or a hollow cylinder are obtained and compared. Variations of both horizontal and vertical displacements against these factors are presented and analyzed. It is found that the trajectories of the hollow cylinder collapse at the initial stage of submerging in water when the velocity ratios are the same.

KW - Freely falling circular cylinder

KW - High-speed camera

KW - Water tunnel

UR - https://www.scopus.com/pages/publications/84924973063

U2 - 10.1117/12.2081157

DO - 10.1117/12.2081157

M3 - Conference article published in proceeding or book

VL - 9302

BT - International Conference on Experimental Mechanics 2014

PB - SPIE

T2 - International Conference on Experimental Mechanics 2014, ICEM 2014

Y2 - 15 November 2014 through 17 November 2014

ER -

On the motion of a falling circular cylinder in flows after water entry

Abstract

Conference

Keywords

ASJC Scopus subject areas

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