On Mon, 2010-08-23 at 23:16 -0600, Ron Jensen wrote: > On Monday 23 August 2010 21:37:06 Ampere K. wrote: > > > Thank you very much Jon and Ron. That certainly cleared things up for me. > > You're welcome > > > I only have one question left, which is my original question regarding > > turbofan in JSBsim. How does JSBsim simulates a turbofan engine? > > I am far from an expert on turbine engines, or the JSBSim turbine model, but > here it goes: (I'll use the f16 engine file, F100-PW-229.xml, as an example) >
There is a thermo/physics math model of a turbofan engine if you want to go in that direction. The down side is that is does not fit nicely into the current JSBsim or Yasim engine models. But it does model the twin spool configuration of a turbofan engine using compressor and turbine maps. It is based in part on the engine model developed for LeRC by the University of Toledo and Dr. Reed. A copy was sent to Jon a few years back but never made it into the CVS files. As I noted above it does no follow the standard method for engine modeling. However you can "drop it in" to replace the existing turbofan model (FGTurbine) with some minor changes to the basic engine class FGEngine. We used it in the 737NG simulator we delivered to NASA in 2008. It also has an accurate tanking model for 737 type aircraft and really *shines* on the 747. If that is an approach you're interested in pursuing Jon might still have a copy or I'll be happy to provide a copy of the source and the deltas to the basic JSBSim source. Only caveat --- no guarantees or warranties :-) John ------------------------------------------------------------------------------ Sell apps to millions through the Intel(R) Atom(Tm) Developer Program Be part of this innovative community and reach millions of netbook users worldwide. Take advantage of special opportunities to increase revenue and speed time-to-market. Join now, and jumpstart your future. http://p.sf.net/sfu/intel-atom-d2d _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
