Experiments were conducted to study four different triple axial swirlers combustor about flow drag performance and combustion performance of a triple axial swirler combustor at different inlet airflow velocities

inlet airflow temperatures and fuel-air ratios with fixed atmospheric pressure. The test results show that: the total pressure loss coefficient of triple axial swirler combustor increases with inlet airflow velocity increasing (from 40m/s to 70m/s)

and inlet airflow temperature rise is helpful to ignition and lean blowout; by comparing the combustion performance of the triple axial swirler combustor of "clockwise—counterclockwise—clockwise"rotational direction combinations with the combustor of "counterclockwise—counterclockwise—clockwise" rotational direction combination

the total pressure loss coefficient is a little higher and the lean blowout performance is better

while the combustion efficiency is a little lower; decreasing the inner swirler airflow rate would lead to increase of total pressure loss coefficient

and decline of lean blowout fuel-air ratio and combustion efficiency.