Surface Tension s (Liquid/Gas)

• DEFAULT: PPDS 14: (Output details)

  s/s^o = a₀ × t^a₁ ×(1 + a₂ × t) , where t = 1 - T/T_c and T_c is the critical temperature, and s^o = 1 N/m.

• Alternative 1: Yaws.SurfaceTension (Output details)

  s/s^o = exp(A)×{1 - ( T / T_c )}ⁿ, where s^o = 1 N/m

• Alternative 2: Watson (Output details)

  ln(s/s^o) = a₁ + åa_i ×T_r^i-1 ×ln(1-T_r) , where the summation is from i = 2 to nTerms -1

  T_r = T/T_c, T_c is the critical temperature, and s^o = 1 N/m

• Alternative 3: ISTExpansion (Output details)

  s/s^o = åa_i ×(1 - T/T_c)ⁱ, where the summation is from i = 1 to nTerms, and s^o = 1 N/m