calc_a1s_eff

despasito.equations_of_state.saft.compiled_modules.ext_gamma_mie_python.calc_a1s_eff

calc_a1s_eff(rho, Cmol2seg, l_ii_avg, zetax, epsilonii_avg, dii_avg)[source]

Return a1s,(rho*Cmol2seg,l_ij) in K

Parameters:

  • rho (numpy.ndarray) – Number density of system [mol/m^3]

  • Cmol2seg (float) – Conversion factor from from molecular number density, \(\rho\), to s egment (i.e. group) number density, \(\rho_S\). Shown in eq. 13

  • l_ii_avg (numpy.ndarray) – Average bead (i.e. group or segment) exponent in component (i.e. molecule) i.

  • zetax (numpy.ndarray) – Matrix of hypothetical packing fraction based on hard sphere diameter for groups (k,l)

  • epsilonii_avg (numpy.ndarray) – Average bead (i.e. group or segment) potential well depth in component (i.e. molecule) i.

  • dii_avg (numpy.ndarray) – Effective hard sphere diameter of the beads (i.e. groups or segments) in component (i.e. molecule) i.

Returns:

a1s_eff – Term used in the used in the calculation of the effective averaged molecular radial distribution function of a hypothetical one-fluid Mie system.

Return type:

numpy.ndarray