Effect of rotor–stator rim cavity flow on the turbine-Reference-Cited by-同舟云学术

Effect of rotor–stator rim cavity flow on the turbine

Published:2021-05-20 Issue:0 Volume:0 Page:
ISSN:2191-0332
Container-title:International Journal of Turbo & Jet-Engines
language:en
Short-container-title:

Author:

Jia Xingyun¹,Wang Wenhao¹,Shi Hongrui²,Zhang Le¹,He Lidong¹

Affiliation:

1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology , Beijing , 100029 , P. R. China

2. AECC Harbin Dongan Engine Co., Ltd , Harbin , 150066 , P. R. China

Abstract

Abstract Relative high pressure in the rotor–stator (RS) cavity helps to improve its seal effectiveness. However, every 1% increase in the cavity flow results in a decrease of the stage power of turbine by about 0.32% and a decrease in the aerodynamic efficiency by about 0.33%. With rim cavity flow, the pressure distribution in the suction side of rotor blade domain and the turbine flow structure show obvious circumferential differences, which are caused by the interactions between the RS cavity flow and the mainstream. The flow characteristic in the false externally-induced ingress in rim clearance is proposed for the first time to reveal the flow mechanism in the effect of RS rim cavity flow on the turbine.

Publisher

Walter de Gruyter GmbH

Subject

Aerospace Engineering

Link

https://www.degruyter.com/document/doi/10.1515/tjeng-2021-0009/pdf

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