Foreword SWAN course

It is our feeling that the quality of consulting work using the shallow water wave model SWAN can be improved considerably by providing a number of tools to SWAN users; DHH already developed an extension to SWAN to generate graphics directly from the computational software. It also developed the graphical software OPGraph enabling SWAN users to intercompare results of SWAN computations, and to compare SWAN results with observations. A third development was the Graphical User Interface that introduces beginning users to SWAN. The course to which this foreword is an introduction is intended to bridge the gap between knowledge of wave physics in general and the practical use of SWAN. This course does not itself provide the basic general knowledge of waves. For this the reader is referred to one of the following textbooks:

Holthuijsen, Leo H. (2007),
Waves in Oceanic and Coastal Waters, Cambridge University Press, 386 p.
Young, I.R. (1999),
Wind Generated Ocean Waves, Eds. R.Bhattacharyya and M.E. McCormick, Ocean Engineering Series, Elsevier, Amsterdam, 288 p.
It is the feeling of the author that a thorough knowledge of waves is indispensible for consultants active in the field of wave modelling. This course only briefly summarizes some basic notions. The bulk of this course is about the choices facing SWAN users, such as the choice of the computational area and the physics to be switched on in the model. Many of the reactions by the author on questions in the Swan forum page (see the Delft University website) have been used in the text of this course.

Most of the illustrations in this course were obtained using Swan-DHH (the Swan version with graphics extension) and OPGraph. These programs generate Postscript files which were transformed into JPEG format using CorelDraw.

Some illustrations in the course result from tests in the test bank, so users can experiment with the results in order to get deeper insight into SWAN. Many of the tests in the same test bank are useful in order to see how certain options in SWAN can be used, e.g. nonstationary computations and various types of boundary conditions.

For beginning SWAN users who prefer an oral course with exercises there is also the possibility of a course by Dr. Booij. See the course programme.

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© 2012: Nico Booij