Howto:Modelling hydrodynamics in JSBSim: Difference between revisions

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The moments are split into the hydrodynamic body frame channels
The moments are split into the hydrodynamic body frame channels
(with the same sense as the normal body frame moments):
(with the same sense as the normal body frame moments):
* '''Pitch'''
* '''Pitch''' (angle: positive is nose up)
* '''Yaw'''
* '''Yaw'''
* '''Roll'''
* '''Roll''' (angle and moment: positive is left wing up)


The properties determining the location and orientation of the vessel w.r.t the the water surface and stream are:
The properties determining the location and orientation of the vessel w.r.t the the water surface and stream are:
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* <nowiki>hydro/beta-deg</nowiki>      - angle between the vessel's velocity vector through the water and its longitudinal axis. Analogous to aerodynamics/beta-deg.
* <nowiki>hydro/beta-deg</nowiki>      - angle between the vessel's velocity vector through the water and its longitudinal axis. Analogous to aerodynamics/beta-deg.
* <nowiki>hydro/pitch-deg</nowiki>    - angle between the vessel longitudinal axis and the water surface (ground plane).
* <nowiki>hydro/pitch-deg</nowiki>    - angle between the vessel longitudinal axis and the water surface (ground plane).
* <nowiki>hydro/roll-deg</nowiki>      - angle between the vessel traverse axis and the water surface (ground plane).
* <nowiki>hydro/roll-deg</nowiki>      - angle between the vessel transverse axis and the water surface (ground plane).
* <nowiki>hydro/v-fps</nowiki>        - The vessel's total speed relative the water.
* <nowiki>hydro/v-fps</nowiki>        - The vessel's total speed relative the water.


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