Comparison of computations with Boussinesq-like models and laboratory measurements

Report (1994)

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Copyright: © 1994 Maarten Dingemans
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Published Date

29-06-1994

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Source:

memo in framework of MAST project (G8-M), Delft Hydraulics memo H1684.12

Abstract

It is already known for a long time that one of the major discrepancies between computations with Boussinesq-like models and measurements, is due to the inaccurate representation of the linear frequency dispersion in the Boussinesq-like long wave models. A comparison of various models as given in Dingemans (1973) showed already large differences between the frequency dispersion of various models. A comparison with measurements in a flume (Dingemans, 1976) showed that the computed wave profiles were also found in the measurements, but at a different location. This was ascribed to the inaccurate frequency dispersion.

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