Difference between revisions of "Polar file formats"
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− | The easiest way to define a polar is to use the .polar file format. This is a single text file defining sets of polars with points for lift, drag and pitch moment as a function of angle of attack, at a fixed flap deflection. Here is an example, from a file called naca0012.polar. | + | The easiest way to define a polar is to use the .polar file format. This is a single text file defining sets of polars with points for lift, drag and pitch moment as a function of angle of attack, at a fixed flap deflection. Here is an example, from a file called naca0012.polar, trimmed down for simplicity. |
# Polar file for naca0012 | # Polar file for naca0012 | ||
# This is a comment | # This is a comment | ||
# This is another | # This is another | ||
− | + | ||
# Polar with -20.0 degrees flap | # Polar with -20.0 degrees flap | ||
set { | set { |
Revision as of 22:18, 5 March 2007
The easiest way to define a polar is to use the .polar file format. This is a single text file defining sets of polars with points for lift, drag and pitch moment as a function of angle of attack, at a fixed flap deflection. Here is an example, from a file called naca0012.polar, trimmed down for simplicity.
# Polar file for naca0012 # This is a comment # This is another # Polar with -20.0 degrees flap set { deflection = -20.0 p = [ -20.000 -1.2712 0.303250 0.2140 ] p = [ -15.000 -1.6465 0.097880 0.0669 ] : : p = [ -10.000 -1.7037 0.036230 0.0953 ] p = [ 13.000 0.5736 0.026330 0.1448 ] p = [ 16.000 0.9769 0.032570 0.1119 ] } # Polar with 0.0 degrees flap set { deflection = 0.0 p = [ -2.000 -0.2144 0.005810 -0.0030 ] p = [ -1.000 -0.1075 0.005490 -0.0014 ] p = [ 0.000 0.0000 0.005400 0.0000 ] : : p = [ 6.000 0.6940 0.009730 -0.0041 ] p = [ 7.000 0.8267 0.010940 -0.0093 ] p = [ 8.000 0.9101 0.012100 -0.0040 ] } # Polar with 20.0 degrees flap set { deflection = 20.0 p = [ -2.000 -0.2144 0.005810 -0.0030 ] p = [ -1.000 -0.1075 0.005490 -0.0014 ] p = [ 0.000 0.0000 0.005400 0.0000 ] : : p = [ 6.000 0.6940 0.009730 -0.0041 ] p = [ 7.000 0.8267 0.010940 -0.0093 ] p = [ 8.000 0.9101 0.012100 -0.0040 ] }