Generating BSFC Maps
Generating BSFC Maps
(OP)
I am looking for software recommendations for fitting engine dynamometer fuel consumption data into iso-BSFC-line contour plots (e.g., BMEP vs RPM with lines of constant BSFC). What have you used in the past? What would you recommend? I have used SigmaPlot previously to do this but I have found it difficult to use. It requires the data to pass through a 3D smoothing sub-routine and the sub-routine fails on more than half of the data sets that I have put through it.
-Joe
-Joe





RE: Generating BSFC Maps
If you want to roll your own it depends how much you want to spend, and how much you want to learn programming wise. Excel, http://www.xlxtrfun.com/XlXtrFun/XlXtrFun.htm, matlab, octave, python and R all offer some form of 3d plots, but the real question is how do you fit the surface to the random scattering of rpm vs bmep vs sfc triads. This requires decisions to be made - for instance you probably won't have good coverage in some parts of the bbmep/rpm axes, and you won't have even coverage in general, and how much smoothing do you want to apply?
Cheers
Greg Locock
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RE: Generating BSFC Maps
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RE: Generating BSFC Maps
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RE: Generating BSFC Maps
RE: Generating BSFC Maps
"Formal education is a weapon, whose effect depends on who holds it in his hands and at whom it is aimed." ~ Joseph Stalin