Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method

Line K.  Mortensen; Wojciech Jacek Laskowski; Allan P. Engsig-Karup; Claes Eskilsson; Carlos Monteserin

Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method

Line K. Mortensen, Wojciech Jacek Laskowski, Allan P. Engsig-Karup, Claes Eskilsson, Carlos Monteserin

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

Abstract

We present a Spectral Element Fully Nonlinear Potential Flow (FNPF- SEM) model developed for the simulation of wave-body interactions between nonlinear free surface waves and impermeable structures. The solver is accelerated using an iterative p-multigrid algorithm. Two cases are considered: (i) a surface piercing box forced into vertical motion creating radiated waves and (ii) a rectangular box released above its equilibrium resulting in freely decaying heave motion. The FNPF-SEM model is validated by comparing the computed hydrodynamic forces against those obtained by a Navier-Stokes solver. Although not perfect agreement is observed the results are promising, a significant speedup due to the iterative algorithm is however seen.

Originalsprog	Engelsk
Titel	Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference
Antal sider	8
Vol/bind	3
Forlag	International Society of Offshore & Polar Engineers
Publikationsdato	2021
Sider	1569-1576
ISBN (Elektronisk)	978-1-880653-82-1
Status	Udgivet - 2021
Begivenhed	The 31st (2021) International Ocean and Polar Engineering Conference - Rhodes, Grækenland Varighed: 20 jun. 2021 → 25 jun. 2021 Konferencens nummer: 31

Konference

Konference	The 31st (2021) International Ocean and Polar Engineering Conference
Nummer	31
Land/Område	Grækenland
By	Rhodes
Periode	20/06/2021 → 25/06/2021

Navn	Proceedings of the International Offshore and Polar Engineering Conference
ISSN	1098-6189

Bibliografisk note

Emneord

Spectral element method
P-multigrid
Fully nonlinear potential flow
Wave-body interactions
Acceleration potential method

Adgang til dokumentet

http://publications.isope.org/proceedings/ISOPE/ISOPE%202021/data/pdfs_Vol3/3137-21TPC-0320.pdf

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Citationsformater

Mortensen, L. K., Laskowski, W. J., Engsig-Karup, A. P., Eskilsson, C., & Monteserin, C. (2021). Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method. I Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference (Bind 3, s. 1569-1576). International Society of Offshore & Polar Engineers. http://publications.isope.org/proceedings/ISOPE/ISOPE%202021/data/pdfs_Vol3/3137-21TPC-0320.pdf

Mortensen, Line K. ; Laskowski, Wojciech Jacek ; Engsig-Karup, Allan P. et al. / Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method. Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference . Bind 3 International Society of Offshore & Polar Engineers, 2021. s. 1569-1576 (Proceedings of the International Offshore and Polar Engineering Conference).

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title = "Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method",

abstract = "We present a Spectral Element Fully Nonlinear Potential Flow (FNPF- SEM) model developed for the simulation of wave-body interactions between nonlinear free surface waves and impermeable structures. The solver is accelerated using an iterative p-multigrid algorithm. Two cases are considered: (i) a surface piercing box forced into vertical motion creating radiated waves and (ii) a rectangular box released above its equilibrium resulting in freely decaying heave motion. The FNPF-SEM model is validated by comparing the computed hydrodynamic forces against those obtained by a Navier-Stokes solver. Although not perfect agreement is observed the results are promising, a significant speedup due to the iterative algorithm is however seen.",

keywords = "Spectral element method, P-multigrid, Fully nonlinear potential flow, Wave-body interactions, Acceleration potential method, Spectral element method, P-multigrid, Fully nonlinear potential flow, Wave-body interactions, Acceleration potential method",

author = "Mortensen, {Line K.} and Laskowski, {Wojciech Jacek} and Engsig-Karup, {Allan P.} and Claes Eskilsson and Carlos Monteserin",

note = "Copyright {\textcopyright} 2021 by the International Society of Offshore and Polar Engineers, Cupertino, California, USA. All rights reserved.; The 31st (2021) International Ocean and Polar Engineering Conference, ISOPE-2021 ; Conference date: 20-06-2021 Through 25-06-2021",

year = "2021",

language = "English",

volume = "3",

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

publisher = "International Society of Offshore & Polar Engineers",

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booktitle = "Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference",

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Mortensen, LK, Laskowski, WJ, Engsig-Karup, AP, Eskilsson, C & Monteserin, C 2021, Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method. i Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference . bind 3, International Society of Offshore & Polar Engineers, Proceedings of the International Offshore and Polar Engineering Conference, s. 1569-1576, The 31st (2021) International Ocean and Polar Engineering Conference, Rhodes, Grækenland, 20/06/2021. <http://publications.isope.org/proceedings/ISOPE/ISOPE%202021/data/pdfs_Vol3/3137-21TPC-0320.pdf>

Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method. / Mortensen, Line K. ; Laskowski, Wojciech Jacek; Engsig-Karup, Allan P. et al.
Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference . Bind 3 International Society of Offshore & Polar Engineers, 2021. s. 1569-1576 (Proceedings of the International Offshore and Polar Engineering Conference).

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method

AU - Mortensen, Line K.

AU - Laskowski, Wojciech Jacek

AU - Engsig-Karup, Allan P.

AU - Eskilsson, Claes

AU - Monteserin, Carlos

N1 - Conference code: 31

PY - 2021

Y1 - 2021

N2 - We present a Spectral Element Fully Nonlinear Potential Flow (FNPF- SEM) model developed for the simulation of wave-body interactions between nonlinear free surface waves and impermeable structures. The solver is accelerated using an iterative p-multigrid algorithm. Two cases are considered: (i) a surface piercing box forced into vertical motion creating radiated waves and (ii) a rectangular box released above its equilibrium resulting in freely decaying heave motion. The FNPF-SEM model is validated by comparing the computed hydrodynamic forces against those obtained by a Navier-Stokes solver. Although not perfect agreement is observed the results are promising, a significant speedup due to the iterative algorithm is however seen.

AB - We present a Spectral Element Fully Nonlinear Potential Flow (FNPF- SEM) model developed for the simulation of wave-body interactions between nonlinear free surface waves and impermeable structures. The solver is accelerated using an iterative p-multigrid algorithm. Two cases are considered: (i) a surface piercing box forced into vertical motion creating radiated waves and (ii) a rectangular box released above its equilibrium resulting in freely decaying heave motion. The FNPF-SEM model is validated by comparing the computed hydrodynamic forces against those obtained by a Navier-Stokes solver. Although not perfect agreement is observed the results are promising, a significant speedup due to the iterative algorithm is however seen.

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KW - P-multigrid

KW - Fully nonlinear potential flow

KW - Wave-body interactions

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KW - Spectral element method

KW - P-multigrid

KW - Fully nonlinear potential flow

KW - Wave-body interactions

KW - Acceleration potential method

UR - http://publications.isope.org/proceedings/ISOPE/ISOPE%202021/data/toc_vol3.html

M3 - Article in proceeding

VL - 3

T3 - Proceedings of the International Offshore and Polar Engineering Conference

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EP - 1576

BT - Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference

PB - International Society of Offshore & Polar Engineers

T2 - The 31st (2021) International Ocean and Polar Engineering Conference

Y2 - 20 June 2021 through 25 June 2021

ER -

Mortensen LK, Laskowski WJ, Engsig-Karup AP, Eskilsson C, Monteserin C. Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method. I Proceedings of the Thirty-first (2021) International Ocean and Polar Engineering Conference . Bind 3. International Society of Offshore & Polar Engineers. 2021. s. 1569-1576. (Proceedings of the International Offshore and Polar Engineering Conference).

Simulation of Nonlinear Waves Interacting with a Heaving Floating Body using a p-Multigrid Spectral Element Method

Abstract

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Bibliografisk note

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