Description

While other methods of drag reduction are well-known in marine R&D and ship design environments worldwide, compliant coating drag reduction remains less well-known and poorly understood. This important book presents cutting-edge techniques and findings from research sources not generally accessible by Western researchers and engineers, aiding the application and further development of this potentially important technology.

Beginning with an introduction to drag reduction that places the authors’ work on elastic surfaces and combined techniques in context, the book moves on to provide a comprehensive study of drag reduction through elastic coating with both flow and material properties considered. Coverage includes:

  • Experimental findings around coherent vortical structures (CVS) in turbulent boundary layers and methods of controlling them
  • Static and dynamic mechanical characteristics of elastic composite coatings, as well as new techniques and devices developed for their measurement
  • Combined methods of flow control and drag reduction, including the effect of injection of polymer solutions, elastic coatings and generated longitudinal vortical structures on hydrodynamic resistance

Intended as a reference for senior engineers and researchers concerned with the drag reduction and the dynamics of turbulent boundary layer flows, Boundary Layer Flow over Elastic Surfaces provides a unique source of information on compliant surface drag reduction and the experimental techniques around it that have shown measurable and repeatable improvements over recent years.

This compilation of research findings and new techniques developed for measurement will aid R&D engineers, naval architects and senior designers in their quest to achieve drag reductions that will deliver significant efficiency savings.

Key Features

  • Unique source of information on compliant surface drag reduction—an important area of technology with practical application to ships—from otherwise inaccessible research studies
  • Updates the knowledge-base on boundary layer flow and surface friction reduction, critical topics in the global quest for increased ship efficiency and fuel economy
  • Reveals new techniques and devices developed for measurement and provides a comprehensive study of drag reduction through elastic coating with both flow and material properties covered

Readership

Research engineers, design engineers, naval architects and academics within marine engineering environments, including naval and defense institutions, marine research facilities, manufacturers of large marine vessels, etc.

Table of Contents

Preface

List of Symbols

Indices

Abbreviations

Chapter 1. Interaction of the Free Stream with an Elastic Surface

1.1 Introductory Remarks

1.2 Basic Types of Coherent Vortical Structures arising in the Flow about a Body, and Methods of their Control

1.3 Coherent Structures in a Turbulent Boundary Layer

1.4 The Flow over Elastic Surfaces

1.5 Experimental Studies on the Characteristics of Elastic Plates

1.6 Experimental Investigations of Coherent Vortical Structures in a Transitional Boundary Layer on the Flow over a Rigid Plate

1.7 Distribution of Disturbing Movement across the Thickness of a Laminar Boundary Layer over a Rigid Surface

1.8 Physical Process of Laminar–Turbulent Transition of a Boundary Layer over a Rigid Plate

1.9 Hydrobionic Principles of Drag Reduction

1.10 Experimental Investigation of Coherent Vortical Structures in a Transitional Boundary Layer over an Elastic Plate

1.11 Distribution of Disturbing Movement on the Thickness of a Laminar Boundary Layer on an Elastic Surface

1.12 Receptivity of the Boundary Layer to Different Disturbances

1.13 The Boundary Layer as a Heterogeneous, Asymmetric Wave-Guide

1.14 Control Methods of the CVSs of a Boundary Layer

1.15 Physical Substantiation of the Interaction Mechanism of the Flow with an Elastic Surface

Chapter 2. Types of Elastic Surfaces and Research of their Mechanical Characteristics

2.1 Models of Elastic Surfaces

2.2 Mechanical Characteristics of Elastomers

2.3 Methods of Measuring the Mechanical Characteristics of Elastomers

2.4 The Apparatus and Devices for Measuring the Mechanical Characteristics of Elastomers

2.5 Construction of Elastic Surfaces

2.6 Main Similarity Parameters

2.7 Measurement of Static Mechanical Characteristics of Elastomers

2.8 Measurement of Dynamic C

Details

No. of pages:
632
Language:
English
Copyright:
© 2013
Published:
Imprint:
Butterworth-Heinemann
Print ISBN:
9780123948069
Electronic ISBN:
9780123948212

Reviews

"The book provides and in-depth discussion on boundary layer flow, quoting over 500 references to illustrate how our understanding of the various factors involved has grown.  It will be of interest to researchers, naval architects and designers engaged in achieving drag reduction and thus the increased efficiency of propulsion which is needed to reduce harmful emissions."--Ship and Boat International, January/February 2013