Impure curves at high pump speed because of inaccurate data of upper and lower limit of pump speed.
cHQN:
0.00000e+00, 0.00000e+00, 1.52394e-06;
0.00000e+00, 5.07893e-05, 0.00000e+00;
-4.42148e-03, 0.00000e+00, 0.00000e+000
cPQN:
8.61711e+01, -3.19500e-01, 3.36762e-04, -1.12746e-07, 1.59435e-11;
0.00000e+00, 0.00000e+00, 4.33938e-06, 0.00000e+00, 0.00000e+00;
0.00000e+00, 5.09522e-05, 0.00000e+00, 0.00000e+00, 0.00000e+00;
-4.54214e-03, 0.00000e+00, 0.00000e+00, 0.00000e+00, 0.00000e+00