3D buoys: Results

For general information on selecting and producing results, see the producing results topic.

If the buoy experiences sea state disturbance this will be accounted for in any results that depend on wave elevation and kinematics.

X, Y, Z

Positions of the buoy origin, relative to global axes.

Velocity, GX velocity, GY velocity, GZ velocity,
Acceleration, GX acceleration, GY acceleration, GZ acceleration

The magnitude and components (with respect to global axes) of the velocity and acceleration of the buoy.

Dry length

Length of buoy above the water surface, measured along the buoy $z$-axis. For this purpose, the $z$-extent of a 3D buoy is taken to be height/2 either side of its volume centre.

Wetted volume

The volume of buoy submerged below the instantaneous water surface, calculated as $\PW V$ where $\PW$ is the proportion wet and $V$ the buoy volume.

Sea surface Z

The global $Z$-coordinate of the sea surface directly above or below the instantaneous position of the buoy origin.

Sea surface clearance

The vertical clearance from the buoy origin to the instantaneous sea surface. Negative values indicate submergence.

Sea velocity, sea X velocity, sea Y velocity, sea Z velocity,
Sea acceleration, sea X acceleration, sea Y acceleration, sea Z acceleration

The magnitude and components (with respect to global axes) of the water particle velocity (due to current and waves) and acceleration (due to waves) at the position of the buoy. If the buoy is above the water surface then the value at the water surface is reported.

Connection force, connection GX force, connection GY force, connection GZ force

These connection force results are only available for buoys that are connected to other objects. They report the total force applied to the buoy by the object to which it is connected, including structural inertia loads and added inertia loads.

Connection force reports the magnitude of the connection force. The $GX$, $GY$ and $GZ$ results report the components of the connection force in the global axes directions.