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  • Korkmaz, Kadir BurakRISE,Maritima avdelningen,Chalmers University of Technology, Sweden,SSPA,Chalmers tekniska högskola,SSPA Sweden AB (author)

CFD based form factor determination method

  • Article/chapterEnglish2021

Publisher, publication year, extent ...

  • Elsevier Ltd,2021
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:ri-57272
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-57272URI
  • https://doi.org/10.1016/j.oceaneng.2020.108451DOI
  • https://research.chalmers.se/publication/521721URI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Funding details: 2019-A0052A01308, 2020-A0072A01308; Funding details: Office of Naval Research, ONR; Funding details: Japan Society for the Promotion of Science, KAKEN, 19k04872, JP18H01638; Funding details: VINNOVA, 2017–02953; Funding details: Chienkuo Technology University, CTU; Funding details: Grand Équipement National De Calcul Intensif, GENCI; Funding text 1: The contribution by SSPA/CTU was funded by VINNOVA, the Swedish Governmental Agency for Innovation Systems, grant 2017?02953, and the computational resources provided by Chalmers Center for Computational Science and Engineering (C3SE). The contribution by NMRI was partially funded by JSPS Grant-in-Aid for Scientific Research (C) #19k04872. The contribution by ECN/CNRS was granted access to the HPC resources of CINES and IDRIS computing centres under the allocations 2019-A0052A01308 and 2020-A0072A01308 made by GENCI (Grand ?quipement National de Calcul Intensif). The contribution by UM was supported by the US Office of Naval Research and the computational resources and services provided by Advanced Research Computing at the University of Michigan, Ann Arbor. The contribution by YNU was supported by JSPS (Japan Society for the Promotion of Science) KAKENHI grant number JP18H01638.; Funding text 2: The contribution by NMRI was partially funded by JSPS Grant-in-Aid for Scientific Research (C) # 19k04872 .; Funding text 3: The contribution by UM was supported by the US Office of Naval Research and the computational resources and services provided by Advanced Research Computing at the University of Michigan , Ann Arbor.; Funding text 4: The contribution by SSPA/CTU was funded by VINNOVA , the Swedish Governmental Agency for Innovation Systems , grant 2017–02953 , and the computational resources provided by Chalmers Center for Computational Science and Engineering (C3SE).; Funding text 5: The contribution by YNU was supported by JSPS (Japan Society for the Promotion of Science) KAKENHI grant number JP18H01638 .
  • The 1978 ITTC Power Prediction method is used to predict the propulsive power of ships through towing tank testing. The form factor approach and its determination in this method have been questioned. This paper investigates the possibility to improve the power predictions by introducing Combined CFD/EFD Method where the experimental determination of form factor is replaced by double body RANS computations applied for open cases KVLCC2 and KCS, including first-time published towing tank tests of KVLCC2 at ballast condition including an experimental uncertainty analysis specifically derived for the form factor. Computations from nine organisations and seven CFD codes are compared to the experiments. The form factor predictions for both hulls in design loading condition compared well with the experimental results in general. For the KVLCC2 ballast condition, majority of the form factors were under-predicted while staying within the experimental uncertainty. Speed dependency is observed with the application of ITTC57 line but it is reduced with the Katsui line and nearly eliminated by numerical friction lines. Comparison of the full-scale viscous resistance predictions obtained by the extrapolations from model scale and direct full-scale computations show that the Combined CFD/EFD Method show significantly less scatter and may thus be a preferred approach.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Werner, SofiaRISE,Maritima avdelningen,SSPA,SSPA Sweden AB(Swepub:ri)SofiaWe@ri.se (author)
  • Sakamoto, NobuakiNational Maritime Research Institute, Japan (author)
  • Queutey, PatrickEcole Centrale de Nantes, France,Laboratoire de Recherche en Hydrodynamique, Energetique et Environnement Atmospherique (author)
  • Deng, GanboEcole Centrale de Nantes, France,Laboratoire de Recherche en Hydrodynamique, Energetique et Environnement Atmospherique (author)
  • Yuling, GaoShanghai Ship and Shipping Research Institute, China (author)
  • Guoxiang, DongShanghai Ship and Shipping Research Institute, China (author)
  • Maki, KevinUniversity of Michigan, USA (author)
  • Ye, HauxianUniversity of Michigan, USA (author)
  • Akinturk, AyhanOcean Coastal and River Engineering, Canada,National Research Council Canada (author)
  • Sayeed, TanvirOcean Coastal and River Engineering, Canada,National Research Council Canada (author)
  • Hino, TakanoriYokohama National University, Japan (author)
  • Zhao, FengChina Ship Scientific Research Centre, China,China Ship Scientific Research Centre (CSSRC) (author)
  • Tezdogan, TahsinUniversity of Strathclyde, UK (author)
  • Demirel, YigitUniversity of Strathclyde, UK (author)
  • Bensow, Rickard,1972Chalmers University of Technology, Sweden,Chalmers tekniska högskola(Swepub:cth)ribe (author)
  • RISEMaritima avdelningen (creator_code:org_t)

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  • In:Ocean Engineering: Elsevier Ltd2200029-80181873-5258

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