CONTENTS 



Page 



SYMBOLS AND DEFINITIONS 6 



I INTRODUCTION 7 



II SOME COASTAL ENGINEERING PROBLEMS INVOLVING THE EFFECT 



OF WIND ON WATER. 10 



1. Wave Generation 10 



2. Wave Modification 10 



3. Wind-Driven Spray 13 



4. Surface Currents 13 



5. Wind-Generated Turbulence 13 



6. Wind-Stress Relationships 13 



7. Wind-Stress on Floating Objects 14 



III MOMENTUM AND MECHANICAL ENERGY EXCHANGE BETWEEN 



AIR AND WATER 14 



1. Generation of Surface Waves 14 



2. Boundary Layer Theory 22 



3. Microscale Processes Involved in the Transfer of 



Momentum Between Air and Water 24 



4. Summary 25 



IV MODELING THE GROWTH OF WIND-GENERATED WAVES IN A 



WIND TUNNEL 26 



1. Boundary Layer Growth in the Laboratory . 26 



2. The Importance of Limited Fetch 29 



3. The Scales of Motion Involved in Momentum Exchange 



Between Wind and Water 31 



4. Summary 33 



V SOME LANDMARK EXPERIMENTS 34 



1. Significant Experimental Results 34 



2. Summary 37 



VI SUMMARY AND CONCLUSIONS 37 



1. Summary 37 



2. Conclusions 38 



LITERATURE CITED 39 



TABLES 



1 Wave prediction equations 18 



2 Stage of wave development 30 



