Unsteady Aerodynamic Characteristics of Antenna Rotating in Different Elevation Angles

Figure 5

In one rotation period, aerodynamic coefficient with respect to elevation angle and reduced frequency. α = 0–30°, Δ = 10°; (a)–(d): K = 0.2, (e)–(h): K = 0.24, (i)–(l): K = 0.4.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)