FLUID VORTICITY
Freestream U
2.0
Cylinder R
50
Circulation Γ
0
Streamlines
12
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Streamlines
Vorticity
Pressure
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POTENTIAL FLOW — MAGNUS EFFECT
ψ(r,θ) = U·r·sinθ·(1−R²/r²) + Γ/(2π)·ln(r)
Lift: L = ρUΓ (Kutta-Joukowski theorem)
Circulation Γ ≠ 0 → asymmetric stagnation → Magnus lift