Numerical Prediction of the Vertical Responses of Planing Hulls in Regular Head Waves

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KAHRAMANOĞLU E., ÇAKICI F., Dogrul A.

JOURNAL OF MARINE SCIENCE AND ENGINEERING, cilt.8, sa.6, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 8 Sayı: 6
  • Basım Tarihi: 2020
  • Doi Numarası: 10.3390/jmse8060455
  • Dergi Adı: JOURNAL OF MARINE SCIENCE AND ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Agricultural & Environmental Science Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, INSPEC, Metadex, Veterinary Science Database, Directory of Open Access Journals, Civil Engineering Abstracts
  • Anahtar Kelimeler: CFD, overset mesh, planing hull, seakeeping, vertical motions, CFD SIMULATIONS, COMPREHENSIVE APPROACH, VERIFICATION, VALIDATION, MOTIONS, LOADS, WATER, DEEP
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

The evaluation of the hydrodynamic performance of planing vessels has always been one of the most attractive study fields in the maritime agenda. Resistance and self-propulsion studies have been performed using experimental and numerical methods by researchers for a long time. As opposed to this, the seakeeping performance of planing hulls is assessed with 2D approximation methods, but limitedly, while the experimental campaign is not cost-effective for several reasons. With this motivation, pitch and heave transfer functions and accelerations were obtained for a monohedral hull and a warped hull using a state of art commercial Reynolds-averaged Navier-Stokes (RANS) solver, in this study. Moreover, 2-DOF (degree of freedom) dynamic fluid-body interaction (DFBI) equations were solved in a coupled manner with an overset mesh algorithm, to find the instantaneous motion of the body. After verification, obtained numerical results at three different Froude numbers and a sufficiently large wave frequency range were compared with the experiments. The results showed that the employed RANS method offers a very accurate prediction of vertical motions and accelerations for planing hulls.