[waves2Foam] simulate a nonlinear regular wave: strange increase in free surface -- CFD Online Discussion Forums

January 19, 2018, 10:42

simulate a nonlinear regular wave: strange increase in free surface

Kun_zheng

New Member

Kun Zheng

Join Date: May 2017

Location: Harbin, China

Posts: 20

Rep Power: 9

Hi all,

I use the tutorials waveFlume to simulate a nonlinear regular wave. The steepness H/Lamda=0.071; and the relative wave height H/d=0.096.

I find the free surface is increasing when it is out of the relaxation zone (inlet), please see the attach image. I do not know how it happens. I have tried a finer mesh and more iteration times, it is still there.

When I simulated a linear wave it never happened.
Is it because of the large steepness?

kind regards,
Kun

Attached Images

4.2sec.jpg (60.5 KB, 44 views)

Attached Files

waveProperties.txt (2.0 KB, 6 views)

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