Introduction

This book focuses on “phenomena that are affected by the interaction between fluid (wave) and ground in a complex field,” whose difficulty in handling has been highlighted for many years in the field of coastal engineering. Besides sorting out the ways of implementing model tests and the concept of the law of similarity which ought to be noted, it contrasts the phenomena with the laws of similarity and explains the points to note on the basis of the experimental cases. In the future, we will introduce the current status of numerical analysis techniques that can complement or replace model tests. By providing information that can be used by young researchers who aim at becoming civil engineers and engineers who have had difficulty in handling complex fields involving fluid (wave) and ground in practice, we hope that this publication will serve as a stepping stone to address current issues and aid future development besides fostering a shared understanding of complex phenomena in the boundary fields of hydraulics and geotechnical engineering.