Andy Ross wrote > > Drew wrote: > > IMHO, it's best to use interpolation tables rather than equations if > > you're trying to curve fit empirical data. > > Not in this context. The data here isn't being used to model a > specific engine, but to provide sane parameters for all > (super/turbochared) engines. The performance and code size advantages > of an equation here are significant. >
At the moment we are looking at gear driven centrifugal compressors. Although I haven't researched it in any detail, the output of turbo-driven centrifugal compressors do not have a direct relationship with rpm (turbo lag), and the situation is complicated by the wastegate which operates on the turbo rather than the compressor. I suspect that this is another black art! Gear driven is easy in comparison. When someone comes up with a turbo we may have to have separate models. Regards, Vivian _______________________________________________ Flightgear-devel mailing list [email protected] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
