Ejemplo n.º 1
0
    h = 0 * FT
    N = npy.linspace(1000, 12300, 5) * RPM

    Alpha = npy.linspace(-25, 25, 41) * ARCDEG
    V = npy.linspace(0, Vmax, 30) * FT / SEC

    Prop.CoefPlot(Alpha, fig=1)
    Prop.PTPlot(N, V, h, 'V', fig=2)
    #
    #    N = npy.linspace(0, 13000,31)*RPM
    #    V = npy.linspace(0,Vmax,5)*FT/SEC
    #
    #    Prop.PTPlot(N,V,h,'N', fig = 3)
    Prop.PlotTestData(fig=4)

    N = 12240 * RPM
    print "Max " + AsUnit(Prop.MaxRPM(), 'rpm', '%3.0f') + " at " + AsUnit(
        Prop.MaxTipSpeed, 'ft/s') + " tip speed "
    print
    print "Static Thrust   : ", AsUnit(Prop.T(N, 0 * FT / SEC, h), 'lbf')
    print "Measured Thrust : ", AsUnit(max(npy.array(Prop.ThrustData)[:, 1]),
                                       'lbf')
    N = 12660 * RPM
    print
    print "Static Torque   : ", AsUnit(
        Prop.P(N, 0 * FT / SEC, h) / N, 'in*ozf')
    print "Measured Torque : ", AsUnit(max(npy.array(Prop.TorqueData)[:, 1]),
                                       'in*ozf')

    pyl.show()
Ejemplo n.º 2
0
#
# These are corrected for standard day
#
#                 RPM,        Thrust
#Prop.ThrustData = [(8100  *RPM, 4 *LBF + 8*OZF),
#                   (9200  *RPM, 5 *LBF + 13*OZF),
#                   (11200 *RPM, 9 *LBF + 3*OZF)]
#
#                   RPM,        Torque
#Prop.TorqueData = [(11000 *RPM, 114.768*IN*OZF)]

################################################################################
if __name__ == '__main__':
    
    print "Max " + AsUnit(Prop.MaxRPM(), 'rpm', '%3.0f') + " at " + AsUnit(Prop.MaxTipSpeed, 'ft/s') + " tip speed ", 

    Vmax = 100
    h=0*FT
    N=npy.linspace(1000, 13000,4)*RPM
    
    Alpha = npy.linspace(-25,25,31)*ARCDEG
    V     = npy.linspace(0,Vmax,11)*FT/SEC
    
#    Prop.CoefPlot(Alpha,fig = 1)
    Prop.PTPlot(N,V,h,'V', fig = 2)

    N = npy.linspace(0, 13000,31)*RPM
    V = npy.linspace(0,Vmax,5)*FT/SEC

    Prop.PTPlot(N,V,h,'N', fig = 3)