Howto:Modelling hydrodynamics in JSBSim: Difference between revisions

Jump to navigation Jump to search
m
Line 362: Line 362:
* The hydrodynamic-planing-floats system in FlightGear 2017.1.x and earlier appear to have some wires crossed - the float with the negative y-axis location appears to be on the right side of the aircraft which is not intended. Fixed before 2017.2.x.
* The hydrodynamic-planing-floats system in FlightGear 2017.1.x and earlier appear to have some wires crossed - the float with the negative y-axis location appears to be on the right side of the aircraft which is not intended. Fixed before 2017.2.x.
* The hydrodynamics planing model often reacts poorly to non-smooth water surfaces (in the terrain mesh, not waves) which is not that uncommon in FlightGear's terrain. Quickly reducing speed may help.
* The hydrodynamics planing model often reacts poorly to non-smooth water surfaces (in the terrain mesh, not waves) which is not that uncommon in FlightGear's terrain. Quickly reducing speed may help.
* The hydrodynamics planing model requires a significantly increased FDM rate (the /sim/model-hz property) for good simulation results. This increases the CPU use by JSBSim (which usually is in the low single digit percent before). On some systems this change in CPU use appears to have a considerable impact on the frame rate while on other systems it has no effect (i.e. CPU isn't the bottleneck).
* The hydrodynamics planing model requires a significantly increased FDM rate (the /sim/model-hz property) for good simulation results. This increases the CPU use by JSBSim (which usually is in the low single digit percent before). On some systems this change in CPU use appears to have a considerable impact on the frame rate while on other systems it has no frame rate impact (i.e. CPU isn't the bottleneck).




{{JSBSim}}
{{JSBSim}}
789

edits

Navigation menu