Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon

Xuanlie Zhao; Dezhi Ning; Lars Johanning; Bin Teng

Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon

Xuanlie Zhao
, Dezhi Ning
, Lars Johanning
, Bin Teng

School of Engineering, Computing and Mathematics

Dalian University of Technology
University of Exeter

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings published in a book › peer-review

Abstract

High construction-cost is one of the barriers that limited the developments of wave energy utilization. Integrating wave energy converters (WECs) into other marine structures may reduce the construction cost of WECs effectively. In this paper, an integrated system with a medium array (11 devices) of heaving point absorber WECs (PAWECs) arranged at the weather side of a fixed pontoon-type structure is proposed. The hydrodynamics of the PAWECs are investigated numerically by using higher-order boundary element method (HOBEM) code package (i.e., WAFDUT), which is developed based on linear potential flow theory. The hydrodynamic performance (including interaction factor, wave exciting force and heave response) of the WEC array with the rear pontoon is investigated with focus on the influence of the spacing between the WEC array and the pontoon (WEC-pontoon spacing). For sake of comparisons, the results corresponding to the isolated WEC array, i.e., without the pontoon, are presented. Results show that the performance of the pontoon-integrated WEC array performs better than that without the pontoon.

Original language	English
Title of host publication	Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018
Publisher	International Society of Offshore and Polar Engineers
Pages	1330-1334
Number of pages	5
ISBN (Print)	9781880653876
Publication status	Published - 2018
Event	28th International Ocean and Polar Engineering Conference, ISOPE 2018 - Sapporo, Japan Duration: 10 Jun 2018 → 15 Jun 2018

Publication series

Name	Proceedings of the International Offshore and Polar Engineering Conference
Volume	2018-June
ISSN (Print)	1098-6189
ISSN (Electronic)	1555-1792

Conference

Conference	28th International Ocean and Polar Engineering Conference, ISOPE 2018
Country/Territory	Japan
City	Sapporo
Period	10/06/18 → 15/06/18

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Energy Engineering and Power Technology
Ocean Engineering
Mechanical Engineering

Keywords

Gain factor
Linear potential flow theory
Pontoon
Wave energy device

Cite this

Zhao, X., Ning, D., Johanning, L., & Teng, B. (2018). Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon. In Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018 (pp. 1330-1334). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2018-June). International Society of Offshore and Polar Engineers.

Zhao, Xuanlie ; Ning, Dezhi ; Johanning, Lars et al. / Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon. Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers, 2018. pp. 1330-1334 (Proceedings of the International Offshore and Polar Engineering Conference).

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title = "Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon",

abstract = "High construction-cost is one of the barriers that limited the developments of wave energy utilization. Integrating wave energy converters (WECs) into other marine structures may reduce the construction cost of WECs effectively. In this paper, an integrated system with a medium array (11 devices) of heaving point absorber WECs (PAWECs) arranged at the weather side of a fixed pontoon-type structure is proposed. The hydrodynamics of the PAWECs are investigated numerically by using higher-order boundary element method (HOBEM) code package (i.e., WAFDUT), which is developed based on linear potential flow theory. The hydrodynamic performance (including interaction factor, wave exciting force and heave response) of the WEC array with the rear pontoon is investigated with focus on the influence of the spacing between the WEC array and the pontoon (WEC-pontoon spacing). For sake of comparisons, the results corresponding to the isolated WEC array, i.e., without the pontoon, are presented. Results show that the performance of the pontoon-integrated WEC array performs better than that without the pontoon.",

keywords = "Gain factor, Linear potential flow theory, Pontoon, Wave energy device",

author = "Xuanlie Zhao and Dezhi Ning and Lars Johanning and Bin Teng",

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year = "2018",

language = "English",

isbn = "9781880653876",

series = "Proceedings of the International Offshore and Polar Engineering Conference",

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Zhao, X, Ning, D, Johanning, L & Teng, B 2018, Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon. in Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. Proceedings of the International Offshore and Polar Engineering Conference, vol. 2018-June, International Society of Offshore and Polar Engineers, pp. 1330-1334, 28th International Ocean and Polar Engineering Conference, ISOPE 2018, Sapporo, Japan, 10/06/18.

Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon. / Zhao, Xuanlie; Ning, Dezhi; Johanning, Lars et al.
Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers, 2018. p. 1330-1334 (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2018-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings published in a book › peer-review

TY - GEN

T1 - Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon

AU - Zhao, Xuanlie

AU - Ning, Dezhi

AU - Johanning, Lars

AU - Teng, Bin

PY - 2018

Y1 - 2018

N2 - High construction-cost is one of the barriers that limited the developments of wave energy utilization. Integrating wave energy converters (WECs) into other marine structures may reduce the construction cost of WECs effectively. In this paper, an integrated system with a medium array (11 devices) of heaving point absorber WECs (PAWECs) arranged at the weather side of a fixed pontoon-type structure is proposed. The hydrodynamics of the PAWECs are investigated numerically by using higher-order boundary element method (HOBEM) code package (i.e., WAFDUT), which is developed based on linear potential flow theory. The hydrodynamic performance (including interaction factor, wave exciting force and heave response) of the WEC array with the rear pontoon is investigated with focus on the influence of the spacing between the WEC array and the pontoon (WEC-pontoon spacing). For sake of comparisons, the results corresponding to the isolated WEC array, i.e., without the pontoon, are presented. Results show that the performance of the pontoon-integrated WEC array performs better than that without the pontoon.

AB - High construction-cost is one of the barriers that limited the developments of wave energy utilization. Integrating wave energy converters (WECs) into other marine structures may reduce the construction cost of WECs effectively. In this paper, an integrated system with a medium array (11 devices) of heaving point absorber WECs (PAWECs) arranged at the weather side of a fixed pontoon-type structure is proposed. The hydrodynamics of the PAWECs are investigated numerically by using higher-order boundary element method (HOBEM) code package (i.e., WAFDUT), which is developed based on linear potential flow theory. The hydrodynamic performance (including interaction factor, wave exciting force and heave response) of the WEC array with the rear pontoon is investigated with focus on the influence of the spacing between the WEC array and the pontoon (WEC-pontoon spacing). For sake of comparisons, the results corresponding to the isolated WEC array, i.e., without the pontoon, are presented. Results show that the performance of the pontoon-integrated WEC array performs better than that without the pontoon.

KW - Gain factor

KW - Linear potential flow theory

KW - Pontoon

KW - Wave energy device

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T3 - Proceedings of the International Offshore and Polar Engineering Conference

SP - 1330

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BT - Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018

PB - International Society of Offshore and Polar Engineers

T2 - 28th International Ocean and Polar Engineering Conference, ISOPE 2018

Y2 - 10 June 2018 through 15 June 2018

ER -

Zhao X, Ning D, Johanning L, Teng B. Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon. In Proceedings of the 28th International Ocean and Polar Engineering Conference, ISOPE 2018. International Society of Offshore and Polar Engineers. 2018. p. 1330-1334. (Proceedings of the International Offshore and Polar Engineering Conference).

Numerical investigation on hydrodynamic performance of- a WEC array integrated into a pontoon

Abstract

Publication series

Conference

UN SDGs

ASJC Scopus subject areas

Keywords

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