Nanjing University of Aeronautics and Astronautics, Jiangsu Province Key Laboratory of Aerospace Power System, Nanjing 210016, China
This paper presents the influence of the cavity air injection panels on the flow and combustion performance in the UCC. A combustor model was used to replicate the circumferential mixing utilized in UCC configurations to study the effects of centrifugal forces on combustion stability and efficiency. It is found that changing the diameter of cavity air injection panel changes the equivalence ratio of fuel to air, and at the same time affects the cavity and core air flow rate. The vector field in the combustion cavity changes, thereby affecting the combustion within the combustion ring. Reducing the diameter of the panel increases the combustion temperature in the cavity, providing evidence to the higher temperature in the outlet of the combustion chamber. However, a minimal diameter of the air
injection panels might lead to insufficient airflow in the cavity, while delaying the combustion and decreasing the combustion efficiency, which needs further research in future.
वि.सं.२०७६ वैशाख २३ सोमवार १०:०८ मा प्रकाशित