Characterization of Periodic, Quasiperiodic, and Chaotic States in Nonpremixed Biodiesel/Air Jet Flames

Figure 5

𝑘_𝑐 in the case of periodic or quasiperiodic position series using the regression method (top) and correlation method (bottom): (a) 𝑘=0.5628; (b) 𝑘=0.6542; (c) 𝑘=0.7126; (d) 𝑘=0.5046, 𝑄1=15 kg/h, 𝑄2=150 m³/h for periodic position series; (e) 𝑘=0.7194, 𝑄1=18 kg/h, 𝑄2=250 m³/h for quasiperiodic time series; (f) 𝑘=0.7646, 𝑄1=20 kg/h, 𝑄2=260 m³/h for quasiperiodic position series. Red dashed lines in (a)–(f) stand for the median 𝑘 of 𝑘_𝑐.

(a)

(b)

(c)

(d)

(e)

(f)