Research goal Tilted angle, θ (deg) Temperature of bottom wall, (°C) Temperature of water film inlet, T l,in (°C) Temperature of air inlet, (°C) Velocity of air inlet, (m/s) Mass flow rate of water film inlet, (kg/s) Relative humidity of air inlet, φ (%) Grid analysis 90 84.72 70 44.59 2 0.18 36.0 Evaluation about θ 15, 30, 45, 60, 75, 90 85 70 45 6 0.18 27.5 Evaluation about 90 75, 80, 85, 90, 95, 98 70 45 6 0.18 27.5 Evaluation about T l ,in 90 85 20, 30, 40, 50, 60, 70, 80 45 6 0.18 27.5 Evaluation about 90 85 70 45 6 0.09, 0.18, 0.36, 0.72, 1.44 27.5 Evaluation about 90 85 70 45 2, 4, 6, 8 0.18 27.5 Evaluation about 90 85 70 5, 25, 45, 65, 85 6 0.18 27.5 Evaluation about φ 90 85 70 45 6 0.18 10.0, 27.5, 50.0, 70.0, 90.0