F01. Haringvliet Estuary

The Haringvliet is an estuary on the West Coast of the Netherlands. The estuary was closed at a distance of appr. 10 km from the sea. Due to this closure the current velocities in the estuary are rather weak. In the simulations the current velocities are ignored altogether.
The entrance is partially covered by a shoal, the Hinderplaat. A number of measurements were taken in October 1982 (see Dingemans, 1983, and Andorka, 1995) to validate shallow water wave models. Boundary condition for outer area is taken from station 1 (WAVEC buoy). The computations are Compared with these measurements.

6 cases are considered:

F01a
computation without current
F01b
computation with current=0
F01c
computation with Gen3 Westh
F01d
computation with unstructured grid
F01e
computation with unstructured grid and current=0
F01t
time-dependent computation without current

The results of the runs F01a and F01b should be identical; they are not, mainly in the higher frequency range.
There is also a difference in computation time. This is probably due to the solution method for the linear system of equations that is used to calculate the energy densities. In cases without current a direct method is applied, in cases with current an iterative method (even if the current is 0).

Input files are taken from physics test bed. Resolution is lower.

The overall geographic situation is shown in plot F01.plt.

Spectra at 8 locations are Compared with measurements in plot plfF01.

References

Andorka Gal, J.H., 1995
'Verification set Haringvliet October 14, 1982 - October 15, 1982', Rep. 95.112x, Ministry of Transport, Public Works and Water Management, Den Haag, the Netherlands
Dingemans, M.W., 1983
'Verification of numerical wave propagation models with field measurements; CREDIZ, verification Haringvliet', Rep. W488, Part 1b, Delft Hydraulics, Delft, the Netherlands

Acknowledgement

The data for this test were adapted from the ONR Test bed for Coastal and Oceanic Wave Models.

© 2012: Nico Booij