Calculate all the derivatives that do not involve any composition derivatives

@param T Temperature in K @param p Pressure in Pa @param psi_w Water mole fraction in mol_w/mol_ha @returns v Molar volume on a humid-air basis in

// Transport Property Functions // // Return viscosity in [Pa-s]

Return the pressure in Pa

Return the molar density in mol/m^3

Removed in v8 -- use :func:`HAPropsSI` (SI units) instead.

Helper: run a round-trip DHSU_T flash test. 1. PT flash at (P, T) to get reference state 2. Read the target property (D, H, S, or U) 3. Flash with (Y,

* @brief Calculate the first "two-phase" derivative as described by Thorade and Sadaat, EAS, 2013 * * Implementing the algorithms and ideas of

a -> xi in [0, 1]. Out-of-range inputs map outside [0,1] (no clamp); callers can check before / after.

void ResidualHelmholtzGeneralizedExponential::allEigen(const CoolPropDbl &tau, const CoolPropDbl &delta, HelmholtzDerivatives &derivs) throw() { d

Return the mass-based constant pressure specific heat in J/kg/K

Get the numerical critical temperature in K

Set the fractions @param fractions The vector of fractions of the components converted to the correct input */

* @brief Solves the two-phase isothermal-isobaric flash problem * * A hybrid implementation that combines: * 1. Robust Successive Substitution (SS)

* @brief Convert a number encoded as a string to a double * @param s The string to be converted * * @note */

In the Halley's method solver, two derivatives of the input variable are needed, it yields the following method: \f[ x_{n+1} = x_n - \frac {2 f(x_n)

The name of the backend being used

Re-flash a fresh state via (D, other) and verify it reproduces the inputs. T_expect > 0 adds a temperature-recovery check. Records failures (throw or

Helper: run a round-trip HSU_P flash test. 1. PT flash at (P, T) to get reference state 2. Read the target property (H, S, or U) 3. Flash with (Y, P)

xi in [0, 1] -> a.