Investigation of Scale Effects on Linear Vertical Maneuvering Derivatives of a Submarine

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Kahramanoğlu E., Sezen S., Çakıcı F.

JOURNAL OF ETA MARITIME SCIENCE, cilt.12, sa.1, ss.1-11, 2024 (ESCI)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 1
  • Basım Tarihi: 2024
  • Doi Numarası: 10.4274/jems.2023.72325
  • Dergi Adı: JOURNAL OF ETA MARITIME SCIENCE
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Applied Science & Technology Source, Central & Eastern European Academic Source (CEEAS), Directory of Open Access Journals, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.1-11
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

This paper aims to show the scale effects of vertical maneuvering derivatives for an underwater vehicle using computational fluid dynamics (CFD). The model scale and full-scale benchmark DARPA suboff hull forms were used in numerical vertical planar motion mechanism simulations to achieve this aim. The heave forces, pitch moments, and Euler coefficients are calculated together with the linear vertical maneuvering derivatives by implementing the Fourier series expansion approach. The results show that the coupled added mass terms are significantly influenced by the scale effects, whereas the impact of scale effects on the decoupled added mass and coupled and decoupled damping terms is negligible. Considering that the effects of the coupled added mass on the vertical maneuvering characteristics are almost negligible, the vertical maneuvering of a submarine is slightly influenced by the scale effects.