This book guides naval architects from the first principles of the physics of control surface operation, to the use of experimental and empirical data and applied computational fluid dynamic modelling of rudders and control surfaces. The empirical and theoretical methods applied to control surface design are described in depth and their use explained through application to particular cases. The design procedures are complemented with a number of worked practical examples of rudder and control surface design. The online companion site contains an extensive modelling data library, plus software for theoretical control surface design, based on over 25 years of world-class research at the University of Southampton, an incredible resource for engineers in this field.

Key Features

The only text dedicated to marine control surface design Provides experimental, theoretical and applied design information valuable for practising engineers, designers and students Accompanied by an online extensive experimental database together with software for theoretical predictions and design development


Naval architects and marine engineers, ship designers, hydrodynamicists, ship builders, classification societies; Advanced undergrad and postgrad students of naval architecture, ship science and broader engineering sciences. Typical courses; Marine Engineering; Naval Architecture; Ship Hydrodynamics; Ship Design; Ship Control; Engineers and students involved with computational fluid dynamics (CFD) and other aspects of numerical analysis

Table of Contents

PART ONE PRINCIPLES 1 INTRODUCTION 2 CONTROL SURFACE TYPES 2.1 Control surfaces and applications 2.2 Rudder types 2.3 Other control surfaces 3 PHYSICS OF CONTROL SURFACE OPERATION 3.1 Background 3.2 Basic flow patterns and terminology 3.3 Properties of lifting foils 3.4 Induced drag 3.5 Rudder-propeller interaction 3.6 Propeller induced velocity upstream of rudder 3.7 Influence of hull on rudder-propeller performance 4 CONTROL SURFACE REQUIREMENTS 4.1 Rudder requirements 4.2 Rudder design within the ship design process 4.3 Requirements of other control surfaces 4.4 Rudder and control surface design strategy PART TWO DESIGN DATA SOURCES 5 EXPERIMENTAL DATA 5.1 Review of available experimental data and performance prediction 5.2 Presentation of experimental data 5.3 Experimental data for rudder in free stream 5.4 Experimental data for rudder behind propeller 5.5 Effective aspect ratio 5.6 Rudder and control surface area 5.7 Free surface effects 5.8 Cavitation on control surfaces 5.9 Propulsive effects 5.10 Hull pressures 6 THEORETICAL AND NUMERICAL METHODS 6.1 Available methods 6.2 Potential flow methods 6.3 Navier Stokes methods 6.4 Interpretation of numerical analysis 6.5 Freestream rudders 6.6 Rudder-propeller interaction 6.7 Unsteady behaviour 6.8 Future developments PART THREE DESIGN STRATEGY


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© 2007
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About the authors

Anthony Molland

Anthony Molland, MSc, PhD, CEng, FRINA is Emeritus Professor of Ship Design at the University of Southampton. He has carried out extensive experimental research and published widely on ship design and ship hydrodynamics including ship rudders and control surfaces, propellers and ship resistance components.

Affiliations and Expertise

MSc, PhD, CEng, FRINA Emeritus Professor of Ship Design, University of Southampton, UK

Stephen Turnock

Stephen Turnock, MA, SM, PhD, CEng, MIMechE is Senior Lecturer in Ship Science at the University of Southampton. His research encompasses both experimental and theoretical work on ships, yachts, underwater vehicles and renewable energy devices and the application of CFD for the design of control surfaces and propulsion systems.

Affiliations and Expertise

MA, SM, PhD, CEng, MIMechE, is Senior Lecturer in Ship Science at the University of Southampton, UK