Andy Ross writes:
> Actually, that sounds pretty good to me. Doing "realistic" turbulence
> models near the ground is essentially impossible, for all the same
> reasons that doing realtime fluid dynamics doesn't work.
>
> The only augmentation I can think about is that you might consider
> fading out only the turbulence component perpendicular to the ground.
> Horizontal turbulence (wind gusts) can and does happen in reality.
Sounds good -- I was hoping to provoke Jon into doing something like
that. Note that we do also model horizonal wind gusts (of longer
duration) through FGEnvironment.
As long as I have you on the line, Andy, how hard would it be for you
to adapt the FGAtmosphere::Turbulence() function (in
src/FDM/JSBSim/FGAtmosphere.cpp) for YASim? Currently, in JSBSim.cxx,
I'm deriving the turbulence gain from the /environment/turbulence-norm
property like this:
Atmosphere->SetTurbGain(turbulence->getDoubleValue() *
turbulence->getDoubleValue() *
100.0);
Squaring the normalized value seems to give a more intuitive range of
turbulence. I'm guessing that this would be a 1-hour job for you, or
less; it would be a fair bit more for me simply because I'm less
familiar with the YASim code.
All the best,
David
--
David Megginson, [EMAIL PROTECTED], http://www.megginson.com/
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