A blind comparative study of focused wave interactions with floating structures (CCP-WSI blind test series 3)

Edward Ransley, Shiqiang Yan, Scott Brown, Martyn Hann, David Graham, Christian Windt, Pal Schmitt, Josh Davidson, John Ringwood, Pierre Henri Musiedlak, Jinghua Wang, Junxian Wang, Qingwei Ma, Zhihua Xie, Ningbo Zhang, Xing Zheng, Giuseppe Giorgi, Hao Chen, Zaibin Lin, Ling QianZhihua Ma, Wei Bai, Qiang Chen, Jun Zang, Haoyu Ding, Lin Cheng, Jinhai Zheng, Hanbin Gu, Xiwu Gong, Zhenghao Liu, Yuan Zhuang, Decheng Wan, Harry Bingham, Deborah Greaves

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Results from the CCP-WSI Blind Test Series 3 are presented. Participants, with numerical methods, ranging from low-fidelity linear models to high-fidelity Navier–Stokes (NS) solvers, simulate the interaction between focused waves and floating structures without prior access to the physical data. The waves are crest-focused NewWaves with various crest heights. Two structures are considered: a hemispherical-bottomed buoy and a truncated cylinder with a moon-pool; both are taut-moored with one linear spring mooring. To assess the predictive capability of each method, numerical results for heave, surge, pitch, and mooring load are compared against corresponding physical data. In general, the NS solvers appear to predict the behaviour of the structures better than the linearised methods, but there is considerable variation in the results (even between similar methods). Recommendations are made for future comparative studies and development of numerical modelling standards.

Original languageEnglish
Number of pages10
JournalInternational Journal of Offshore and Polar Engineering
Volume30
Issue number1
DOIs
Publication statusPublished - Mar 2020

Keywords

  • CFD
  • Code comparison
  • Cylinder
  • Heave
  • Hybrid codes
  • Linear potential theory
  • Moonpool
  • Mooring load
  • Nonlinear Froude-Krylov
  • Numerical validation
  • PIC
  • Pitch
  • Surge
  • Wave energy converter

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ocean Engineering
  • Mechanical Engineering

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  • Cite this

    Ransley, E., Yan, S., Brown, S., Hann, M., Graham, D., Windt, C., Schmitt, P., Davidson, J., Ringwood, J., Musiedlak, P. H., Wang, J., Wang, J., Ma, Q., Xie, Z., Zhang, N., Zheng, X., Giorgi, G., Chen, H., Lin, Z., ... Greaves, D. (2020). A blind comparative study of focused wave interactions with floating structures (CCP-WSI blind test series 3). International Journal of Offshore and Polar Engineering, 30(1). https://doi.org/10.17736/ijope.2020.jc774