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. 2023 Mar 26;10(4):140. doi: 10.3390/jcdd10040140

Table 1.

Numerical model parameters for Impella 2.5.

Pump Rotational Speed (rpm) K1 K2 K3 K4 K5
25,000 −1.157·10−7 1.622·10−5 −0.0009846 −0.002613 1.102
35,000 −2.065·10−8 3.849·10−6 −0.0004192 0.001435 1.612
38,000 −1.668·10−8 2.976·10−6 −0.0002915 0.002004 1.812
40,000 −1.497·10−8 3.849·10−6 −0.000417 0.0005987 1.898
43,000 −1.084·10−8 2.59·10−6 −0.0002857 0.0006554 2.071
45,000 −4.085·10−9 9.128·10−7 −0.0001425 −0.002385 2.201
47,000 −3.011·10−9 6.504·10−7 −0.0001116 −0.0026555 2.31
50,000 −1.742·10−9 3.015·10−7 −6.007·10−5 −0.004055 2.446
51,000 −1.845·10−10 −2.204·10−7 −1.528·10−5 −0.000537 2.554