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HIGH SPEED MOTORYACHTS

HIGH SPEED MOTORYACHTS. Prof.Dr . Mustafa İNSEL . Definition of High Speed. Definition of High Speed Craft. V>25 knot Fn> 0.4 IMO Definition: V>3.7  0.1667 (i.e. Fn  >1.18). Froude Number. Static Length Froude Number Running Length Froude Number Beam Froude Number

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HIGH SPEED MOTORYACHTS

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  1. HIGH SPEED MOTORYACHTS Prof.Dr. Mustafa İNSEL

  2. Definition of High Speed

  3. Definition of High Speed Craft • V>25 knot • Fn> 0.4 • IMO Definition: V>3.7 0.1667 (i.e. Fn>1.18)

  4. Froude Number • Static Length Froude Number • Running Length Froude Number • Beam Froude Number • Displacement Froude Number

  5. Monohulls • Round Bilge Monohulls

  6. Monohulls • Round Bilge Monohulls • Hard Chine Monohulls

  7. Round Bilge Monohulls

  8. Transom Stern Flat buttock lines V forward sections U aft sections Typical Round Bilge Hull Form

  9. High Speed Round Bilge Monohulls Series • NPL Bailey • SSPA Lindgren • SSPA Nordstrom • Seri 64 Yeh • NSMB • AMECRC • BAZAN

  10. NPL RBH Series

  11. High Speed Round Bilge Monohulls Resistance Regression Methods • Mercier Savitsky • De Groote • Ping-Zhong • Lathiharju • Fung 1991 • Fung, Liebman 1993,1995

  12. Hard Chine Planing Hulls

  13. pa Y Fixed plate Stagnation Streamline Fp V X Free jet of water Y pa

  14. Fp Fv pa S.P. Fixed Plate R V X Su jeti pa

  15. Su yükselmesi L Serpinti Başlangıç Noktası Li İz  h Su yüzeyi Basınç Dağılımı 1/2  V2 Su seviyesi   Serpinti kalınlığı Serpinti Başlangıç Noktası

  16. Serpinti Başlangıç Hattı Su Seviyesi Su Seviyesi Su Seviyesi İz Serpinti Başlangıcı

  17. Hard Chine Monohulls Sections • Convex Sections • Concave Sections • Straight Sections

  18. Convex Sections

  19. Concave Sections

  20. Straight Sections

  21. Characteristics of HSMV • Transom stern • Transom wedges and flaps • Spray formation • Appendages

  22. Spray Rails

  23. Longitudinal Curvature • Convex Buttock Lines (Rocker) • Concave Buttock Lines (Hook) • Straight Buttock Lines (Straight)

  24. Convex Buttock Lines(Rocker)

  25. Concave Buttock Lines (Hook)

  26. Straight Buttock Lines(Straight)

  27. Spray Rails

  28. Wedge or Flaps

  29. Hight Speed Hard Chine Series • Stevens Institute • Series 62 • Series 63 • Series 65

  30. High Speed Hard Chine Monohull Resistance Regression Methods • Savitsky • Radojcic

  31. Other Drag Components • Appendage Drag • Air Drag • Spray Drag

  32. Spray Formation

  33. Savitsky Method

  34. Wetted Length Ratio

  35. Lift Coefficient

  36. Three Dimensional Wetted Length

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