Additional features in HAMS-MREL: a new open-source BIEM solver for offshore energy applications

Vaibhav Raghavan; Andrei Metrikine; George Lavidas

doi:10.36688/ewtec-2025-700

Additional features in HAMS-MREL: a new open-source BIEM solver for offshore energy applications

Vaibhav Raghavan, Andrei Metrikine, George Lavidas

Research output: Contribution to journal › Conference article › Scientific › peer-review

Abstract

HAMS-MREL is a recently developed open-source BIEM solver, which allows for the solution of the diffraction and radiation problem for multiple floating rigid structures, taking into account their interaction. This has shown to highly accurate when compared with semi-analytical solutions/commercial solver WAMIT, within a computationally efficient framework that is parallelized. The solver is currently capable of providing the hydrodynamic coefficients (added mass and radiation damping) and exciting forces for all 6 rigid body modes per body. With this research, the solver has been extended significantly to include the following features for the multiple body interaction problem 1) Removal of irregular frequencies, 2) Global symmetry, 3) Wave fields and 4) Generalized modes. This study contributes further to the open-source domain with the development of highly accurate numerical tools for the accelerated deployment of offshore renewables.

Original language	English
Article number	700
Number of pages	9
Journal	Proceedings of the European Wave and Tidal Energy Conference
Volume	16
DOIs	https://doi.org/10.36688/ewtec-2025-700
Publication status	Published - 2025
Event	16th European Wave and Tidal Energy Conference EWTEC 2025 - The VidaMar Resort Hotel Congress Center, Funchal, Portugal Duration: 7 Sept 2025 → 11 Sept 2025 https://ewtec.org/ewtec-2025/

Bibliographical note

Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl.

Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

BIEM
Irregular frequency
Wave fields

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10.36688/ewtec-2025-700

Additional features in HAMS-MREL: a new open-source BIEM solver for offshore energy applicationsFinal published version, 7.58 MB

Cite this

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title = "Additional features in HAMS-MREL: a new open-source BIEM solver for offshore energy applications",

abstract = "HAMS-MREL is a recently developed open-source BIEM solver, which allows for the solution of the diffraction and radiation problem for multiple floating rigid structures, taking into account their interaction. This has shown to highly accurate when compared with semi-analytical solutions/commercial solver WAMIT, within a computationally efficient framework that is parallelized. The solver is currently capable of providing the hydrodynamic coefficients (added mass and radiation damping) and exciting forces for all 6 rigid body modes per body. With this research, the solver has been extended significantly to include the following features for the multiple body interaction problem 1) Removal of irregular frequencies, 2) Global symmetry, 3) Wave fields and 4) Generalized modes. This study contributes further to the open-source domain with the development of highly accurate numerical tools for the accelerated deployment of offshore renewables.",

keywords = "BIEM, Irregular frequency, Wave fields",

author = "Vaibhav Raghavan and Andrei Metrikine and George Lavidas",

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year = "2025",

doi = "10.36688/ewtec-2025-700",

language = "English",

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AU - Raghavan, Vaibhav

AU - Metrikine, Andrei

AU - Lavidas, George

N1 - Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2025

Y1 - 2025

N2 - HAMS-MREL is a recently developed open-source BIEM solver, which allows for the solution of the diffraction and radiation problem for multiple floating rigid structures, taking into account their interaction. This has shown to highly accurate when compared with semi-analytical solutions/commercial solver WAMIT, within a computationally efficient framework that is parallelized. The solver is currently capable of providing the hydrodynamic coefficients (added mass and radiation damping) and exciting forces for all 6 rigid body modes per body. With this research, the solver has been extended significantly to include the following features for the multiple body interaction problem 1) Removal of irregular frequencies, 2) Global symmetry, 3) Wave fields and 4) Generalized modes. This study contributes further to the open-source domain with the development of highly accurate numerical tools for the accelerated deployment of offshore renewables.

AB - HAMS-MREL is a recently developed open-source BIEM solver, which allows for the solution of the diffraction and radiation problem for multiple floating rigid structures, taking into account their interaction. This has shown to highly accurate when compared with semi-analytical solutions/commercial solver WAMIT, within a computationally efficient framework that is parallelized. The solver is currently capable of providing the hydrodynamic coefficients (added mass and radiation damping) and exciting forces for all 6 rigid body modes per body. With this research, the solver has been extended significantly to include the following features for the multiple body interaction problem 1) Removal of irregular frequencies, 2) Global symmetry, 3) Wave fields and 4) Generalized modes. This study contributes further to the open-source domain with the development of highly accurate numerical tools for the accelerated deployment of offshore renewables.

KW - BIEM

KW - Irregular frequency

KW - Wave fields

U2 - 10.36688/ewtec-2025-700

DO - 10.36688/ewtec-2025-700

M3 - Conference article

SN - 2706-6932

VL - 16

JO - Proceedings of the European Wave and Tidal Energy Conference

JF - Proceedings of the European Wave and Tidal Energy Conference

M1 - 700

Y2 - 7 September 2025 through 11 September 2025

ER -

Additional features in HAMS-MREL: a new open-source BIEM solver for offshore energy applications

Abstract

Bibliographical note

UN SDGs

Keywords

Access to Document

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Cite this