Research Article
Influence of the Inner and Outer Secondary Air Ratios on the Combustion Characteristic and Flame Shape of a Swirl Burner with a Prechamber
Table 3
Flame shapes size for different ISA/OSA.
| | ISA/OSA | Upper flame surface | Downward flame surface | Flame diameter (mm) | Flame divergence angle (°) | Flame length (mm) | | Intercept (mm) | Slope | Intercept (mm) | Slope |
| | 2 : 1 | 941.9 | 0.3813 | 179.1 | 0.1670 | 762.8 | 12.1 | 4194 | | 1 : 1 | 542.4 | 0.1752 | 156.3 | −0.0102 | 386.1 | 10.5 | 5926 | | 1 : 2 | 947.3 | 0.1079 | 522.5 | −0.1033 | 424.8 | 11.9 | 5504 |
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