Preface-to-the-Second-Edition_1987_Flow-Visualization

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Preface to the Second Edition 
During the past decade there has been evidence of a rapidly growing 
interest in the methods of flow visualization. The tremendous progress in 
the development of new methods is reflected in the International Sympo­
sia on Flow Visualization of which the first took place in Tokyo in 1977. 
These symposia have contributed substantially to the interdisciplinary 
exchange between scientists and engineers using these methods, and they 
particularly make evident the great achievements made by our Japanese 
colleagues in this field. The second edition of this book tries to account for 
the new developments, applications, and results. 
While preparing this book, I have benefited from many discussions 
with colleagues in the field and particularly from discussions with my 
students, who have been enthusiastically active in this area. Again, a 
great number of authors and research institutions have kindly provided 
photographs and illustrations, and I am very grateful for this help. I cor­
dially thank Ms. Barbara Brandt, who typed the manuscript, as well as 
the publisher, who showed great patience when I was preparing this sec­
ond edition. 
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