Hydrodynamics of Planing Monohull Watercraft

ISBN-13: 9783319392189 / Angielski / Miękka / 2016 / 105 str.

William Vorus

Opis

This book addresses the principles involved in the design and engineering of planing monohull power boats, with an emphasis on the theoretical fundamentals that readers need in order to be fully functional in marine design and engineering.

Spis treści

Preface 4

Part 1: Boat Hull Hydrodynamics 5

Introduction and Background 5

Chapter I: Conceptual Monohull Planing in Calm Water 7

Planing Boat Hydrostatics 11

Hydrostatic Solution 13

Chapter II: Slender-Body Hydrodynamics 14

Planing Solution in Calm Water 14

Analysis 16

Normal Force Coefficient (per unit length) 17

Lift and Drag 18

Numerical Example 18

More General Non-similar Slender Planing Hulls 25

Numerical Analysis 27

Shallow Water Planing 29

Chapter III Time Domain Analysis 30

Chapter IV Calm-water Mechanics 33

Porpoising 40

Gravity Effects in Boat Steady Performance 40

The Components of Planing Craft Drag 41

Induced drag 41

Wave drag 42

Spray drag 41

Use of Trim Tabs 42

Chapter V:  Planing in Sea Waves 44

Wave Spectrum and Inversion 45

Seaway Motion 47

Regular Wave Impact 51

Part 2: Boat Propulsion Hydrodynamics 56

Introduction and Background 56

Design of Ventilated Propellers 58

Chapter 1 Data requirements for design 58

Vent-Cavity Creation 59

Vent-Cavity Maintenance 59

Specification of Design Geometry 63

Chapter 2 An Engineering Approximation 64

SPP Design Example 65

Cavitation (Ventilation) Characteristics 68

Blade Strength 77

Stress and Deflection Prediction 78

Open-Water Curves 79

Hull Propeller Matching 81

Consequences of Hull – Propeller Mismatch 84

Propulsion Efficiency Enhancing Devices 86

Part 2 Conclusion 86

References: 87

Appendix        88

O autorze

William Vorus, PhD, is Professor Emeritus and Jerome L. Goldman Endowed Chair in the School of Naval Architecture and Marine Engineering at the University of New Orleans, in Louisiana. He is one of the leading authorities in the field of planing watercraft and has published extensively on the topic in journals. 

Blurb

This book addresses the principles involved in the design and engineering of planing monohull power boats, with an emphasis on the theoretical fundamentals that readers need in order to be fully functional in marine design and engineering. Author William Vorus focuses on three topics: boat resistance, seaway response, and propulsion and explains the physical principles, mathematical details, and theoretical details that support physical understanding. In particular, he explains the approximations and simplifications in mathematics that lead to success in the applications of planing craft design engineering, and begins with the simplest configuration that embodies the basic physics. He leads readers, step-by-step, through the physical complications that occur, leading to a useful working knowledge of marine design and engineering. Included in the book are a wealth of examples that exemplify some of the most important naval architecture and marine engineering problems that challenge many of today’s engineers.