Influence of the Amplitude of Inlet Axial Pulsating Flow on Turbine Working Characteristics. Issue 5 (January 2021)

• Record Type: Journal Article
• Authors: Ji, Bing; Wang, Zhiduo; Li, Jun
• Is Part Of: Journal of physics. Volume 1748:Issue 5(2021)
• Publication Date: 2021-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1748/5/052031
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The flow field at the outlet of the rotating detonation combustor has strong pulsation characteristics, and this strong impact will bring fatal damage to the downstream turbine. In this paper, the simplified sine wave model was used to simulate the rotating detonation wave to study the characteristics of the turbine working in a pulsating flow field. The results show that the greater the amplitude of the incoming flow pulsation, the stronger the non-uniformity of the aerodynamic parameters and heat transfer parameters of the flow field inside the turbine. The increase in the amplitude of the incoming flow pulsation will aggravate the separation of the end wall secondary flow and the cascade flow, resulting in greater flow loss and reducing the working efficiency of the turbine.