This post is about a 2D NACA 0012 heaving aerofoil. Heaving motion is achieved by changing the angle of attack on the aerofoil based on the Eqn. 1.
αe = arctan[2*π*Sta*cos(2*π*fh*t)]+ αi Eqn. 1
w.r.t. Eqn. 1, αe is the effective angle of attack, Sta is Strouhal number, fh is the heaving frequency.
The case S1 and H6 from [1] are compared in the animations below.
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References
[1] https://doi.org/10.1121/10.0001419
