The asymmetrical flow field of combustor inlet was obtained by which the oriented vane was installed in the axial diffuser of a reverse-flow combustor test piece

and how the combustor performance was affected by the variety of the combustor inlet flow field was simulated based on experiments verification

and the scheme included no vane

vane deflexion angle of 25° and vane deflexion angle of 35°. The results indicate that the unevenness of the flow field of the combustor inlet is caused by the oriented vane with deflection angle. The flow of combustor inlet takes on a certain deflexion angle and tangential velocity. The airflow direction of the primary holes and dilution holes has a deflexion angle. When the deflexion angle of the oriented vane increases

the axial velocity of the primary holes and dilution holes increases to a certain extent

and the tangential velocity of the primary holes and dilution holes increases greatly. The total pressure recovery coefficient decreases when the deflexion angle of the oriented vane increases. With the increase of deflection angle of the oriented vane

the combustion efficiency is invariable basically. The outlet temperature distribution factor(OTDF) decreases greatly

and the temperature circumferential distribution unevenness decreases at the same radial height.