Analytical Investigation into Effects of Capillary Force on Condensate Film Flowing over Horizontal Semicircular Tube in Porous Medium

Table 1

Physical parameters used in present analyses.

Symbol	Interpretation	Typical value
K	Permeability	6.4 × 10^−13 m^2
	Liquid density	957.9 kg/m^3
R	Radius of tube	0.1 m
Cp	Specific heat at constant pressure	4217 J/kg-°C
	Liquid viscosity	2.79 × 10^−4 kg/m-s
	Surface tension	5.94 × 10^−2 N/m
	Heat of vaporization	2257 kJ/kg
	Saturation temperature minus wall temperature (Tsat-)	5°C, 10°C, 25°C
	Porosity	0.38
		0.01, 0.02, 0.05
		1.76
Da		6.4 × 10^−11
Ra		2 × 10^11
		6.1 × 10^5