/usr/share/doc/crrcsim-doc/windfield.txt is in crrcsim-doc 0.9.12-5build2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | Windfield simulation includes thermals. Please take a look into the
subdirectory "./thermals/" if you are interested.
Currently this file serves as a reminder and notebook on how to handle
windfield simulation in the future.
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Changelog:
2005-10-14: first version
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Current state (2005-10-14)
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Windfield is hardcoded, which means that (apart from thermals) it is not
worth describing it. Please take a look at windfield.cpp.
What needs to be done
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- random variations in direction and strength
- turbulences (the FDM needs work in this case, too)
- terrain dependend windfield
How does "Slope Soaring Sim" do it?
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enviroment.*
wind_field_generator.*
There are some methods "*wind_from_terrain", called from enviroment.cpp.
filtered_separated_wind_from_terrain
How does "runtime" work? Is it Velocity Environment::get_background_wind_from_terrain(const Position & pos,
bool thermal) const?
How does "JSBSim" do it?
------------------------
src/models/FGAtmosphere.cpp includes different models for turbulence. No
windfield simulation based on terrain. Maybe this is done somewhere else?
There must be a call to void SetWindNED(double wN, double wE, double wD)
somewhere. But I guess that this is in FlightGear, as JSBSim doesn't know
anything about the terrain?
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