Boundary Layer Flow over Elastic Surfaces
Compliant Surfaces and Combined Methods for Marine Vessel Drag Reduction
- 1st Edition - October 23, 2012
- Latest edition
- Authors: Viktor V. Babenko, Ho-Hwan Chun, Inwon Lee
- Language: English
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 po… Read more
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.
- 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
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.
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 Characteristics of Elastomers
2.9 Oscillations and Waves in Composite Elastomers
Chapter 3. The Turbulent Boundary Layer over Elastic Plates
3.1 Experimental Equipment and Methods of Measurement
3.2 Velocity Profiles of Average Speed over Elastic Plates
3.3 Profiles of Fluctuation Velocities
3.4 Velocity Field in the Near-Wall Region
3.5 Energy Balance of a Turbulent Boundary Layer over an Elastic Plate
3.6 Correlation and Spectral Parameters of a Turbulent Boundary Layer over an Elastic Plate
Chapter 4. Fluctuations of an Elastic Surface in a Turbulent Boundary Layer
4.1 Apparatus for Research on Fluctuations of an Elastic Surface
4.2 Investigation of Fluctuations of an Elastic Surface
4.3 Structure of a Turbulent Boundary Layer over Elastic Plates in Water
4.4 Interaction of Different Disturbances in a Boundary Layer over Elastic Plates
4.5 Boundary Layer over a Controlled Elastic Plate
4.6 Investigation of Velocity Fluctuations on Dolphin Skin
Chapter 5. Experimental Investigation of Friction Drag
5.1 Methods of Determining Friction Drag on Plates
5.2 The Complex Apparatus for Experimental Research
5.3 Experimental Investigations of Friction Drag on Elastic Plates
5.4 Drag of Cylinders in the Longitudinal Flow
5.5 Friction Drag of Elastic Cylinders in a Longitudinal Flow
5.6 Influence of Polymer Additives on the Friction Drag of an Elastic Plate
5.7 Engineering Method for the Selection of Elastic Plates
Chapter 6. Hydrobionics and the Anatomy of Fast Swimming Hydrobionts
6.1 Interaction of High-Speed Hydrobionts and Flow
6.2 Experimental Research of Bodies with Xiphoid Tips
6.3 Theoretical Research on Bodies with Xiphoid Tips
6.4 Combined Method of Drag Reduction of a Body with a Xiphoid Tip and Injection of Polymer Solutions
6.5 Physical Mechanism of the Influence of Xiphoid Tip on Drag Reduction
6.6 Kinematic Characteristics of the Model Flow at the Injection of Polymer Solution through a Ring Slot
6.7 Method and Apparatus for the Optimum Injection of Liquids in a Boundary Layer
6.8 Modeling of Disturbance Development in the Flow Behind a Ledge
6.9 Basic Conclusions
Chapter 7. Mathematical Modeling of the Turbulent Boundary Layer with Injection of Polymer Additives
7.1 Introduction
7.2 Statement of Problem
7.3 Brief Analysis of Known Results for Turbulent Flows in the Presence of Solutions of High-Molecular-Weight Polymers
7.4 Governing Equations
7.5 Calculation Method
7.6 Turbulence Model
7.7 Calculations Results and Discussion
7.8 Conclusions
7.9 Probable Directions for Further Developments
References
Index
- Edition: 1
- Latest edition
- Published: October 23, 2012
- Language: English
VB
Viktor V. Babenko
Prof. Viktor V. Babenko received his MSc in Mechanical Engineering from the Moscow Aviation Institute in 1963 and his PhD in Fluid and Gas Mechanics from the Institute of Hydro-aeromechanics of the National Academy of Sciences of Ukraine (NASU) in 1970. Between 1963 and 1965, he worked at the Antonov Design Bureau, a Ukrainian aircraft manufacturing company. He has been at the Institute of Hydromechanics since 1965, where he has managed research projects on boundary layers. He has been a professor since 1990, and was the Head of Department until 2000. Throughout his career, he has developed original methodologies for research on boundary layer receptivity to 2D and 3D disturbances, at flows around elastic coatings, near different cavities and ledges, in a vortex chamber, at movement of high-speed surface devices, and others. He has developed control methods for coherent vortical structures arising at various types of flows. From 1989 to 2006, he was a member of the Scientific Council of the Institute of Hydromechanics NASU, and since 2000 he has been a member of the Scientific Councils of the Universities of Civil Aviation and Polytechnic in Kiev.
Affiliations and expertise
Emeritus Professor and former Dept. Head, Department of Information Systems in Hydroaeromechanics and Ecology, Institute of Hydromechanics, National Academy of Sciences of Ukraine, Kiev, UkraineHC
Ho-Hwan Chun
BSc and MSc, Dept. of Naval Architecture & Ocean Engineering, Pusan National University,
Korea (1983,1985)
Ph.D., Dept. of Naval Architecture & Ocean Engineering, Glasgow University, U.K. (1988)
Professor at Dept of Naval Architecture & Ocean Engineering(1994∼present)
Director of Advanced Ship Engineering Research Center(2002∼present)
Senior Researcher of Hyundai Maritime Research Institute 1991~1993:
Yard Research Fellow, Glasgow University, U.K. 1988~1991
Member of 25, 26th ITTC Resistance Committee (2005∼present)
Member of 24th ITTC Waterjet Specialist Committee (2002∼2005)
Member of 22th ITTC Safety of High Speed Marine Vehicles Specialist Committee
(1996∼1999)
Fellow of Royal Institute of Naval Architects(UK) (2001∼present)
Member of SNAME(USA)
Member of SNAK(Korea)
Deputy Editor of Journal of Marine Science Technology (published by Springer)
(2006∼2009)
Editor of International Journal of Naval Architecture & Ocean Engineering (2009∼present)
Affiliations and expertise
Director, Advanced Ship Engineering Research Center; Professor, Dept. of Naval Architecture and Ocean Engineering, Pusan National University, KoreaIL
Inwon Lee
March 2000 ~ May 2000; Post Doctoral Researcher, Mechanical Engineering Research Institute, KAIST (Korea Advanced Institute of Science and Technology), Daejeon, Korea. June 2000 ~ May 2001; JSPS Postdoctoral Fellow, Division of Mechanical Science, Graduate School of Engineering, Hokkaido University, Sapporo, Japan. June 2001 ~ September 2003; Senior Researcher, Core Technology Group, Digital Appliance Laboratory, LG Electronics, Seoul, Korea. October 2003 ~ February 2008; Assistant Professor. ASERC (Advanced Ship Engineering Research Center), Pusan National University, Busan, Korea. March 2008 ~ Present; Associate Professor, ASERC (Advanced Ship Engineering Research Center), Pusan National University, Busan, Korea. March 2011 ~ Present; Visiting Scholar, Dept. of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA.
Affiliations and expertise
Associate Professor, Advanced Ship Engineering Research Center (ASERC), Pusan National University, South Korea; Visiting Scholar, Department of Mechanical Engineering, University of Michigan, Ann Arbor, USARead Boundary Layer Flow over Elastic Surfaces on ScienceDirect