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Calibration of UWA’s O-tube flume facility

Calibration of UWA’s O-tube flume facility
Calibration of UWA’s O-tube flume facility
The O-tube facility, designed and established at the University of Western Australia, is an innovative closed loop flume in which a random storm sequence can be reproduced via control of a large pump system. The O-tube facility is capable of simulating hydrodynamic conditions near the seabed and the interaction with seabed sediment and any infrastructure that is resting on it.

The purpose of carrying out the O-tube calibration described in this paper is to obtain the relationship between the motor rotation movement and the flow velocity generated in the O-tube, such that any required storm history within the performance envelope of the O-tube can be reproduced. A range of flow velocities and the corresponding pump speeds were measured under steady current, oscillatory flow and combined flow conditions. It was found that the relationship between the pump speed and the flow velocity varies with the oscillatory flow period. Based on the pump characteristic curves and O-tube system curves, the correlation between the motor speed and the flow velocity was derived by applying hydraulic theory and the principle of energy conservation.

The derived correlation is validated by reproducing a wide range of target storm series, including a (1:5.8) scaled 100-year return period storm from the North West Shelf of Western Australia in 40 m water depth.
121-131
ASME
Luo, Chengcai
3f76a01f-41ea-43b3-8be7-6e6289179aa8
An, Hongwei
e8b6f5ed-c6bd-4253-b6d1-aab7b60e8cb3
Cheng, Liang
0ce99dcc-f682-4ec6-97aa-59fd87174385
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Luo, Chengcai
3f76a01f-41ea-43b3-8be7-6e6289179aa8
An, Hongwei
e8b6f5ed-c6bd-4253-b6d1-aab7b60e8cb3
Cheng, Liang
0ce99dcc-f682-4ec6-97aa-59fd87174385
White, David
a986033d-d26d-4419-a3f3-20dc54efce93

Luo, Chengcai, An, Hongwei, Cheng, Liang and White, David (2012) Calibration of UWA’s O-tube flume facility. In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. vol. 5, ASME. pp. 121-131 . (doi:10.1115/OMAE2012-83274).

Record type: Conference or Workshop Item (Paper)

Abstract

The O-tube facility, designed and established at the University of Western Australia, is an innovative closed loop flume in which a random storm sequence can be reproduced via control of a large pump system. The O-tube facility is capable of simulating hydrodynamic conditions near the seabed and the interaction with seabed sediment and any infrastructure that is resting on it.

The purpose of carrying out the O-tube calibration described in this paper is to obtain the relationship between the motor rotation movement and the flow velocity generated in the O-tube, such that any required storm history within the performance envelope of the O-tube can be reproduced. A range of flow velocities and the corresponding pump speeds were measured under steady current, oscillatory flow and combined flow conditions. It was found that the relationship between the pump speed and the flow velocity varies with the oscillatory flow period. Based on the pump characteristic curves and O-tube system curves, the correlation between the motor speed and the flow velocity was derived by applying hydraulic theory and the principle of energy conservation.

The derived correlation is validated by reproducing a wide range of target storm series, including a (1:5.8) scaled 100-year return period storm from the North West Shelf of Western Australia in 40 m water depth.

Full text not available from this repository.

More information

Published date: 2012
Venue - Dates: ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2012, Rio de Janeiro, Brazil, 2012-07-01 - 2012-07-06

Identifiers

Local EPrints ID: 419913
URI: http://eprints.soton.ac.uk/id/eprint/419913
PURE UUID: 4475aaf5-c696-44ef-9806-6d8e7cbf2ac7
ORCID for David White: ORCID iD orcid.org/0000-0002-2968-582X

Catalogue record

Date deposited: 23 Apr 2018 16:30
Last modified: 29 Oct 2019 01:26

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