Air water slug flows through a 25.4-mm diameter horizontal tube in microgravity condition (less than 1% of earth’s normal gravity). The liquid phase consists of water with dynamic viscosity of μ_l = 85.5 × 10^-5 kg/m · s, density of ρ_l = 997 kg/m³, thermal conductivity of k_l = 0.613 W/m · K, and Prandtl number of Pr_l = 5.0. The gas phase consists of air with dynamic viscosity of μg = 18.5 × 10^-6 kg/m·s, density P_g = 1.16 kg/m3, and Prandtl number Pr_g = 0.71. At superficial gas velocity of V_sg = 0.3 m/s, superficial liquid velocity V_sl = 0.544 m/s, and void fraction of α = 0.27, estimate the two-phase heat transfer coefficient h_tp. Assume the dynamic viscosity of water evaluated at the tube surface temperature to be 73.9 × 10^-5 kg/m · s.