Numerical Study on Acoustic Resonance Excitation in Closed Side Branch Pipeline Conveying Natural Gas

Figure 16

Phase plane: (a)  = 10 m/s, (b)  = 15 m/s, (c)  = 20 m/s, (d)  = 30 m/s, (e)  = 40 m/s, (f)  = 50 m/s, (g)  = 60 m/s, and (h)  = 70 m/s.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)