The significance of coherent flow structures for the turbulent mixing ...

Acknowledgement
First of all I would like to thank Prof. Dr. Eckelmann from the University of Göttingen, who
has always been ready to discuss experimental and fluid mechanical questions and to give
invaluable advice, and thanks to Prof. Dr. Ronneberger for the comments on the draft version
of this book.
Secondly, I would like to thank Dr. Bütefisch and Dr. Kompenhans from the German Aerospace
Center (DLR) for their professional and financial support in any situation, without that this
work would have never been finished and I would also express my gratitude to both for their
continuing interest in my research work over the years and the strong scientific promotion that
I have experienced while I was working at DLR.
Thirdly, I would like to thank Prof. Dr. Stanislas from the Laboratoire de Mécanique de Lille
(LML) in France, especially for his experimental support, without that the second part of this
book could neither have been conceived nor carried out, and I would like to thank Prof. Dr.
Fernholz from the Hermann Föttinger Institut (HFI) in Berlin for the provision of the hot-wire
results.
In addition I would like to express my thanks to all colleagues at DLR and around the world
who have directly or indirectly influenced the success of this thesis, especially Dr. Kreplin
and Dr. Dewhirst.
Finally, I would like to address my sincere gratitude to my wife Ariane, my son Florian and
my mother for their never-ending patience, understanding and love and I wish I could also
thank my father to whom I dedicate this work in honour.
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