Numerical Investigation of Two-phase Unstable Combustion in High Temperature Rise Flame Tube. Issue 1 (1st May 2022)

• Record Type: Journal Article
• Authors: Long, Wang; Ren, Jiande; Cai, Wenxiang; Chen, Xiong
• Is Part Of: Journal of physics. Volume 2235:Issue 1(2022)
• Publication Date: 2022-05-01
• Subjects: Oscillation Combustion -- Two-phase Combustion -- Three-stage Axial Swirl -- Numerical Simulation; Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2235/1/012077
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Intense acoustic pressure oscillation, caused by instability combustion, poses a huge challenge for the performance and the structural integrity of high temperature rise combustor. Transient process of combustion in the flame tube with three-stage axial swirler was investigated by numerical methods. Simulation results show that a wide range of velocity fluctuations appear at swirler's outlet and recirculation zone move periodically at flame tube's circumferential center plane, which cause the oscillation combustion.