phi0DT: Second Derivative of the Ideal-Gas Part of the Dimensionless...
In IAPWS95: Thermophysical Properties of Water and Steam
phi0DT R Documentation
Second Derivative of the Ideal-Gas Part of the Dimensionless Helmholtz Energy Equation
with respect to Density and Temperature
Description
The function phi0DT(digits=9) returns the Second Derivative of the
Ideal-gas Part of the Dimensionless Helmholtz Energy Equation with respect to
Density and Temperature.
Usage
phi0DT(digits = 9)
Arguments
digits
Digits of results (optional)
Details
This function calls a Fortran DLL that solves the Helmholtz Energy Equation.
in accordance with the Revised Release on the IAPWS Formulation 1995 for the
Thermodynamic Properties of Ordinary Water Substance for General and Scientific
Use (June 2014) developed by the International Association for the Properties of
Water and Steam, http://www.iapws.org/relguide/IAPWS-95.html. It is valid
from the triple point to the pressure of 1000 MPa and temperature of 1273.
Value
The Second DT Derivative of Ideal-gas Part of the Helmholtz Energy: phi0DT and an Error
Message (if an error occur: errorCodes)
Examples
phi0_DT <- phi0DT()
phi0_DT
IAPWS95 documentation built on Sept. 11, 2023, 5:11 p.m.
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| phi0DT | R Documentation |
Second Derivative of the Ideal-Gas Part of the Dimensionless Helmholtz Energy Equation with respect to Density and Temperature
Description
The function phi0DT(digits=9) returns the Second Derivative of the
Ideal-gas Part of the Dimensionless Helmholtz Energy Equation with respect to
Density and Temperature.
Usage
phi0DT(digits = 9)
Arguments
digits |
Digits of results (optional) |
Details
This function calls a Fortran DLL that solves the Helmholtz Energy Equation. in accordance with the Revised Release on the IAPWS Formulation 1995 for the Thermodynamic Properties of Ordinary Water Substance for General and Scientific Use (June 2014) developed by the International Association for the Properties of Water and Steam, http://www.iapws.org/relguide/IAPWS-95.html. It is valid from the triple point to the pressure of 1000 MPa and temperature of 1273.
Value
The Second DT Derivative of Ideal-gas Part of the Helmholtz Energy: phi0DT and an Error Message (if an error occur: errorCodes)
Examples
phi0_DT <- phi0DT()
phi0_DT
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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