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Why the wave height of CGWave results oscillate

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I am using CGWave to simulate a regular with propagation on the slope (1:3). The incident wave period is 2.0s and the wave height is 1.0m. The domain is 100m in x direction and 200m in y direction. There are 16 meshes in one wave length. For the results ( the horizontal centre cross line ) I found the wave height oscillated. The wave height changes periodically to the shore line. Pls tell me whether this is the CGWave problem or my setting problem. The reflection coefficient of the coast line is set to 0.0 .

The setting of the simulation can be downloaded at : https://docs.google.com/leaf?id=0B2YFUBanwCqaNzAyMjc2ZWQtNzlmYi00NGZjLTg0OWYtYTdkMThjZjQ4NDll&hl=en.

Thanks.

Simulation domain :

Simulation domain

water depth :

water depth

wave height (simulation results: why wave height variation??)

wave height

Edited by trimtrim

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I am not sure I understand what you are asking. Are you asking why there is a variation of the height of one wave crest to the next?

I am using CGWave to simulate a regular with propagation on the slope (1:3). The incident wave period is 2.0s and the wave height is 1.0m. The domain is 100m in x direction and 200m in y direction. There are 16 meshes in one wave length. For the results ( the horizontal centre cross line ) I found the wave height oscillated. The wave height changes periodically to the shore line. Pls tell me whether this is the CGWave problem or my setting problem. The reflection coefficient of the coast line is set to 0.0 .

The setting of the simulation can be downloaded at : https://docs.google.com/leaf?id=0B2YFUBanwCqaNzAyMjc2ZWQtNzlmYi00NGZjLTg0OWYtYTdkMThjZjQ4NDll&hl=en.

Thanks.

Simulation domain :

Simulation domain

water depth :

water depth

wave height (simulation results: why wave height variation??)

wave height

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