** ****Numerical
Consistency of ES_StableIF97 Dynamic Viscosity Functions**

ES_StableIF97 dynamic viscosity functions are based on IAPWS-IF97-Vis 2008 edition.

In the IAPWS-IF97-Vis document, the following table is provided for computer-program verification.

The sample points are temperature and density given, while the ES_StableIF97 does not have viscosity functions with temperature and density given.

Therefore, the internal subroutine of ES_StableIF97 for dynamic viscosity calculation with temperature and density given were used for the consistency check and the results of the internal subroutine are as below.

T (K) |
Rho (kg/m3) |
Myu (Pa-s x 10^(-6)) |

298.15 |
998 |
889.735100149805 |

298.15 |
1200 |
1437.64946668839 |

373.15 |
1000 |
307.883622341523 |

433.15 |
1 |
14.5383244857784 |

433.15 |
1000 |
217.685358265104 |

873.15 |
1 |
32.6192869739805 |

873.15 |
100 |
35.8022617218748 |

873.15 |
600 |
77.4301952272825 |

1173.15 |
1 |
44.2172445147164 |

1173.15 |
100 |
47.640433081067 |

1173.15 |
400 |
64.1546078483615 |

Consequently, the consistency of ES_StableIF97 dynamic viscosity functions are OK for IAPWS-IF97-Vis 2008 edition.

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