On the hydrodynamics of bobbing cones

K. R. Drake; R. Eatock Taylor; P. H. Taylor; W. Bai

doi:10.1016/j.oceaneng.2009.07.007

On the hydrodynamics of bobbing cones

K. R. Drake^*, R. Eatock Taylor, P. H. Taylor, W. Bai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The paper describes an experimental investigation into the hydrodynamics of a right circular cone undergoing transient forced vertical oscillations in otherwise still water. Attention is given to the vertical fluid force and the relative vertical motion between the cone and its intersection with the adjacent free water surface. Comparisons are made between linear theory and experimental results extracted from paired response time histories obtained with input displacements of opposite sign. Comparisons are also made with the predictions obtained from fully non-linear numerical models. A slowly varying setup is observed in the measured relative vertical motion and a new second order term is identified in order to formulate a theoretical explanation.

Original language	English
Pages (from-to)	1270-1277
Number of pages	8
Journal	Ocean Engineering
Volume	36
Issue number	15-16
DOIs	https://doi.org/10.1016/j.oceaneng.2009.07.007
Publication status	Published - Nov 2009
Externally published	Yes

ASJC Scopus subject areas

Environmental Engineering
Ocean Engineering

Keywords

Cone
Flared body
Potential flow
Relative motion
Setup
Transient oscillation

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10.1016/j.oceaneng.2009.07.007

Cite this

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title = "On the hydrodynamics of bobbing cones",

abstract = "The paper describes an experimental investigation into the hydrodynamics of a right circular cone undergoing transient forced vertical oscillations in otherwise still water. Attention is given to the vertical fluid force and the relative vertical motion between the cone and its intersection with the adjacent free water surface. Comparisons are made between linear theory and experimental results extracted from paired response time histories obtained with input displacements of opposite sign. Comparisons are also made with the predictions obtained from fully non-linear numerical models. A slowly varying setup is observed in the measured relative vertical motion and a new second order term is identified in order to formulate a theoretical explanation.",

keywords = "Cone, Flared body, Potential flow, Relative motion, Setup, Transient oscillation",

author = "Drake, {K. R.} and {Eatock Taylor}, R. and Taylor, {P. H.} and W. Bai",

year = "2009",

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doi = "10.1016/j.oceaneng.2009.07.007",

language = "English",

volume = "36",

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journal = "Ocean Engineering",

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TY - JOUR

T1 - On the hydrodynamics of bobbing cones

AU - Drake, K. R.

AU - Eatock Taylor, R.

AU - Taylor, P. H.

AU - Bai, W.

PY - 2009/11

Y1 - 2009/11

N2 - The paper describes an experimental investigation into the hydrodynamics of a right circular cone undergoing transient forced vertical oscillations in otherwise still water. Attention is given to the vertical fluid force and the relative vertical motion between the cone and its intersection with the adjacent free water surface. Comparisons are made between linear theory and experimental results extracted from paired response time histories obtained with input displacements of opposite sign. Comparisons are also made with the predictions obtained from fully non-linear numerical models. A slowly varying setup is observed in the measured relative vertical motion and a new second order term is identified in order to formulate a theoretical explanation.

AB - The paper describes an experimental investigation into the hydrodynamics of a right circular cone undergoing transient forced vertical oscillations in otherwise still water. Attention is given to the vertical fluid force and the relative vertical motion between the cone and its intersection with the adjacent free water surface. Comparisons are made between linear theory and experimental results extracted from paired response time histories obtained with input displacements of opposite sign. Comparisons are also made with the predictions obtained from fully non-linear numerical models. A slowly varying setup is observed in the measured relative vertical motion and a new second order term is identified in order to formulate a theoretical explanation.

KW - Cone

KW - Flared body

KW - Potential flow

KW - Relative motion

KW - Setup

KW - Transient oscillation

UR - http://www.scopus.com/inward/record.url?scp=71749085020&partnerID=8YFLogxK

U2 - 10.1016/j.oceaneng.2009.07.007

DO - 10.1016/j.oceaneng.2009.07.007

M3 - Article

AN - SCOPUS:71749085020

SN - 0029-8018

VL - 36

SP - 1270

EP - 1277

JO - Ocean Engineering

JF - Ocean Engineering

IS - 15-16

ER -

On the hydrodynamics of bobbing cones

Abstract

ASJC Scopus subject areas

Keywords

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