Figure 1

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Schematic illustration of the TCC-III engine showing the coordinate system, PIV measurement plane (y = −4.5 mm) and the flame imaging fields-of-view. The white box in the PIV field-of-view image shows a 12 × 6 mm region near the spark plug (x = 4 to −8 mm, z = −2 to −8 mm) in which flow parameters have been averaged in the subsequent analysis.