Fig. 3From: Numerical Study of Aeroacoustic Sound on Performance of Bladeless Fana) Four distinct heights of cross sections: (a)1.5 cm, (b) 2 cm, (c) 3 cm, (d) 4 cm; b) Airfoil cross section for outlet angles of 10º, 13º, 16º and 20º; c) Airfoil cross section for three outlet slits of 1 mm, 2 mm and 3 mmBack to article page