Experiments were conducted to study the outlet temperature distribution of combustor for four different triple swirler schemes and two different dilution holes arrangement schemes with different inlet velocities and fuel-air ratios at fixed atmospheric pressure. The results show that: the outlet temperature distribution factors of different schemes change little with the inlet velocity and fule-ratio ratio; when intermediate swirler and outer swirler are counter-rotating

the outlet temperature distribution becomes more uniform; for two kinds of swirl number combination of 0.7-1-1.5 and 1.5-1-0.8

the outlet temperature distribution factor of the former is more sensitive to the change of outer swirler direction than that of the latter; compared with scheme B

the dilution holes arrangement of scheme A is more suitable for the triple swirler combustor; the dome and dilution holes arrangement should be matched properly in order to optimize the outlet temperature distribution.