Research Article

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

Figure 7

Pressure fluctuation FFT analysis: (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)