TY - JOUR AU - Zhang, Le AB - The rotor disc in the gas turbine creates a pump effect that entrains the fluid near it to radially outward. The hot gas in the mainstream enters the stator–rotor wheel space to maintain mass balance, leading to gas ingestion. The mechanism of the gas ingestion, and the spoiling effect of purge flow on mainstream, and the formation and transform mechanism of the source and core fluid regions in rotor–stator system are revealed in this research. In addition, a radial–radial–axial clearance rim seal (RRACS) is proposed to form a new stator–stator cavity to buff the ingestion flow. Numerical results show that the minimum mass flow rate for seal of the RRACS is 15.76% of the standard axial clearance rim seal. TI - Buffer effect of turbine rim cavity on hot gas ingestion JF - "Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy" DO - 10.1177/09576509221082449 DA - 2022-09-01 UR - https://www.deepdyve.com/lp/sage/buffer-effect-of-turbine-rim-cavity-on-hot-gas-ingestion-TZD4N6r3ek SP - 1083 EP - 1096 VL - 236 IS - 6 DP - DeepDyve ER -