OC6 Phase I: Investigating the underprediction of low-frequency hydrodynamic loads and responses of a floating wind turbine

A. N. Robertson; S Gueydon; E. Bachynski; L. Wang; J. Jonkman; D. Alarcón; E. Amet; A. Beardsell; P. Bonnet; B. Boudet; C. Brun; Z. Chen; M. Féron; D. Forbush; C. Galinos; J. Galvan; P. Gilbert; J. Gómez; V. Harnois; F. Haudin; Z. Hu; J. Le Dreff; M. Leimeister; F. Lemmer; H. Li; G. Mckinnon; I. Mendikoa; A. Moghtadaei; S. Netzband; S. Oh; A. Pegalajar-Jurado; M. Q. Nguyen; K. Ruehl; P. Schünemann; W. Shi; H Shin; Y. Si; F. Surmont; P. Trubat; J. Qwist; S. Wohlfahrt-Laymann

doi:10.1088/1742-6596/1618/3/032033

OC6 Phase I: Investigating the underprediction of low-frequency hydrodynamic loads and responses of a floating wind turbine

A. N. Robertson^*, S Gueydon, E. Bachynski, L. Wang, J. Jonkman, D. Alarcón, E. Amet, A. Beardsell, P. Bonnet, B. Boudet, C. Brun, Z. Chen, M. Féron, D. Forbush, C. Galinos, J. Galvan, P. Gilbert, J. Gómez, V. Harnois, F. HaudinZ. Hu, J. Le Dreff, M. Leimeister, F. Lemmer, H. Li, G. Mckinnon, I. Mendikoa, A. Moghtadaei, S. Netzband, S. Oh, A. Pegalajar-Jurado, M. Q. Nguyen, K. Ruehl, P. Schünemann, W. Shi, H Shin, Y. Si, F. Surmont, P. Trubat, J. Qwist, S. Wohlfahrt-Laymann

^*Corresponding author for this work

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Abstract

Phase I of the OC6 project is focused on examining why offshore wind design tools underpredict the response (loads/motion) of the OC5-DeepCwind semisubmersible at its surge and pitch natural frequencies. Previous investigations showed that the underprediction was primarily related to nonlinear hydrodynamic loading, so two new validation campaigns were performed to separately examine the different hydrodynamic load components. In this paper, we validate a variety of tools against this new test data, focusing on the ability to accurately model the low-frequency loads on a semisubmersible floater when held fixed under wave excitation and when forced to oscillate in the surge direction. However, it is observed that models providing better load predictions in these two scenarios do not necessarily produce a more accurate motion response in a moored configuration.

Original language	English
Article number	032033
Book series	Journal of Physics: Conference Series
Volume	1618
Issue number	3
Number of pages	11
ISSN	1742-6596
DOIs	https://doi.org/10.1088/1742-6596/1618/3/032033
Publication status	Published - 2020
Event	TORQUE 2020 - Online event, Netherlands Duration: 28 Sept 2020 → 2 Oct 2020 https://www.torque2020.org/

Conference

Conference	TORQUE 2020
Location	Online event
Country/Territory	Netherlands
Period	28/09/2020 → 02/10/2020
Internet address	https://www.torque2020.org/

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Robertson, A. N., Gueydon, S., Bachynski, E., Wang, L., Jonkman, J., Alarcón, D., Amet, E., Beardsell, A., Bonnet, P., Boudet, B., Brun, C., Chen, Z., Féron, M., Forbush, D., Galinos, C., Galvan, J., Gilbert, P., Gómez, J., Harnois, V., ... Wohlfahrt-Laymann, S. (2020). OC6 Phase I: Investigating the underprediction of low-frequency hydrodynamic loads and responses of a floating wind turbine. Journal of Physics: Conference Series, 1618(3), Article 032033 . https://doi.org/10.1088/1742-6596/1618/3/032033

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abstract = "Phase I of the OC6 project is focused on examining why offshore wind design tools underpredict the response (loads/motion) of the OC5-DeepCwind semisubmersible at its surge and pitch natural frequencies. Previous investigations showed that the underprediction was primarily related to nonlinear hydrodynamic loading, so two new validation campaigns were performed to separately examine the different hydrodynamic load components. In this paper, we validate a variety of tools against this new test data, focusing on the ability to accurately model the low-frequency loads on a semisubmersible floater when held fixed under wave excitation and when forced to oscillate in the surge direction. However, it is observed that models providing better load predictions in these two scenarios do not necessarily produce a more accurate motion response in a moored configuration.",

author = "Robertson, {A. N.} and S Gueydon and E. Bachynski and L. Wang and J. Jonkman and D. Alarc{\'o}n and E. Amet and A. Beardsell and P. Bonnet and B. Boudet and C. Brun and Z. Chen and M. F{\'e}ron and D. Forbush and C. Galinos and J. Galvan and P. Gilbert and J. G{\'o}mez and V. Harnois and F. Haudin and Z. Hu and Dreff, {J. Le} and M. Leimeister and F. Lemmer and H. Li and G. Mckinnon and I. Mendikoa and A. Moghtadaei and S. Netzband and S. Oh and A. Pegalajar-Jurado and Nguyen, {M. Q.} and K. Ruehl and P. Sch{\"u}nemann and W. Shi and H Shin and Y. Si and F. Surmont and P. Trubat and J. Qwist and S. Wohlfahrt-Laymann",

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doi = "10.1088/1742-6596/1618/3/032033",

language = "English",

volume = "1618",

journal = "Journal of Physics: Conference Series",

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Robertson, AN, Gueydon, S, Bachynski, E, Wang, L, Jonkman, J, Alarcón, D, Amet, E, Beardsell, A, Bonnet, P, Boudet, B, Brun, C, Chen, Z, Féron, M, Forbush, D, Galinos, C, Galvan, J, Gilbert, P, Gómez, J, Harnois, V, Haudin, F, Hu, Z, Dreff, JL, Leimeister, M, Lemmer, F, Li, H, Mckinnon, G, Mendikoa, I, Moghtadaei, A, Netzband, S, Oh, S, Pegalajar-Jurado, A, Nguyen, MQ, Ruehl, K, Schünemann, P, Shi, W, Shin, H, Si, Y, Surmont, F, Trubat, P, Qwist, J & Wohlfahrt-Laymann, S 2020, 'OC6 Phase I: Investigating the underprediction of low-frequency hydrodynamic loads and responses of a floating wind turbine', Journal of Physics: Conference Series, vol. 1618, no. 3, 032033 . https://doi.org/10.1088/1742-6596/1618/3/032033

TY - GEN

T1 - OC6 Phase I: Investigating the underprediction of low-frequency hydrodynamic loads and responses of a floating wind turbine

AU - Robertson, A. N.

AU - Gueydon, S

AU - Bachynski, E.

AU - Wang, L.

AU - Jonkman, J.

AU - Alarcón, D.

AU - Amet, E.

AU - Beardsell, A.

AU - Bonnet, P.

AU - Boudet, B.

AU - Brun, C.

AU - Chen, Z.

AU - Féron, M.

AU - Forbush, D.

AU - Galinos, C.

AU - Galvan, J.

AU - Gilbert, P.

AU - Gómez, J.

AU - Harnois, V.

AU - Haudin, F.

AU - Hu, Z.

AU - Dreff, J. Le

AU - Leimeister, M.

AU - Lemmer, F.

AU - Li, H.

AU - Mckinnon, G.

AU - Mendikoa, I.

AU - Moghtadaei, A.

AU - Netzband, S.

AU - Oh, S.

AU - Pegalajar-Jurado, A.

AU - Nguyen, M. Q.

AU - Ruehl, K.

AU - Schünemann, P.

AU - Shi, W.

AU - Shin, H

AU - Si, Y.

AU - Surmont, F.

AU - Trubat, P.

AU - Qwist, J.

AU - Wohlfahrt-Laymann, S.

PY - 2020

Y1 - 2020

N2 - Phase I of the OC6 project is focused on examining why offshore wind design tools underpredict the response (loads/motion) of the OC5-DeepCwind semisubmersible at its surge and pitch natural frequencies. Previous investigations showed that the underprediction was primarily related to nonlinear hydrodynamic loading, so two new validation campaigns were performed to separately examine the different hydrodynamic load components. In this paper, we validate a variety of tools against this new test data, focusing on the ability to accurately model the low-frequency loads on a semisubmersible floater when held fixed under wave excitation and when forced to oscillate in the surge direction. However, it is observed that models providing better load predictions in these two scenarios do not necessarily produce a more accurate motion response in a moored configuration.

AB - Phase I of the OC6 project is focused on examining why offshore wind design tools underpredict the response (loads/motion) of the OC5-DeepCwind semisubmersible at its surge and pitch natural frequencies. Previous investigations showed that the underprediction was primarily related to nonlinear hydrodynamic loading, so two new validation campaigns were performed to separately examine the different hydrodynamic load components. In this paper, we validate a variety of tools against this new test data, focusing on the ability to accurately model the low-frequency loads on a semisubmersible floater when held fixed under wave excitation and when forced to oscillate in the surge direction. However, it is observed that models providing better load predictions in these two scenarios do not necessarily produce a more accurate motion response in a moored configuration.

U2 - 10.1088/1742-6596/1618/3/032033

DO - 10.1088/1742-6596/1618/3/032033

M3 - Conference article

SN - 1742-6596

VL - 1618

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 3

M1 - 032033

T2 - TORQUE 2020

Y2 - 28 September 2020 through 2 October 2020

ER -

OC6 Phase I: Investigating the underprediction of low-frequency hydrodynamic loads and responses of a floating wind turbine

Abstract

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