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Old   June 6, 2018, 19:25
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Jeferson Souza
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Dear all,

I'm trying to understand how to set wave parameters in the new openFoam 5.0 wave tutorial.

Basically, I do not understand what is the speed parameter. Is it the wave velocity? Description talk about "mean flow speed", but I don't know what it means?

For example for a wave with the following parameters

wave length = 65.4 m
period = 7.5 s
height = 1 m

how can I set up the waveVelocity boundary condition?

left
{
type waveVelocity;
origin (0 0 0);
direction (1 0 0);
speed ????? (what should I put here?);
waves
(
Airy
{
length 65.4;
amplitude 0.5;
phase 0;
angle 0;
}
);
scale constant 1;
crossScale constant 1;
}

Thanks,
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Old   June 7, 2018, 14:37
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Speed is an additional current, I.e. if you solve a ship sailing in waves with forward speed. In case you only want to have a wave without current, set speed to zero
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Old   June 12, 2018, 10:30
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Jeferson Souza
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Thanks a lot.
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Old   September 25, 2018, 22:54
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ymw
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Hi, Jeferson
I'm trying to understand the parameters of waveVelocity recently, but a few parameters confused me a lot
1) scale table ((1200 1) (1800 0));
2) scale and crossScale(I have never seen before)
3) note that speed does not mean wave velocity how to set it
any advice would be great appreciated
thanks in advance
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Old   October 7, 2019, 04:26
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Rasmus Iwersen
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Quote:
Originally Posted by jasouza1974 View Post
Dear all,

I'm trying to understand how to set wave parameters in the new openFoam 5.0 wave tutorial.

Basically, I do not understand what is the speed parameter. Is it the wave velocity? Description talk about "mean flow speed", but I don't know what it means?

For example for a wave with the following parameters

wave length = 65.4 m
period = 7.5 s
where is the period specified?? I can see where wave length and the amplitude. However, the period doesn't seem to be specified anywhere.
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