Effect of strut angle on performance of hydrogen multi-jets inside the cavity at combustion chamber. (6th November 2020)

• Record Type: Journal Article
• Authors: Liu, Xinglong; Barzegar Gerdroodbary, M.; Sheikholeslami, M.; Moradi, R.; Shafee, Ahmad; Li, Zhixiong
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 55(2020)
• Page Start: 31179
• Page End: 31187
• Publication Date: 2020-11-06
• Subjects: Strut -- Supersonic flow -- CFD -- Multi jets -- Hydrogen mixing; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.08.124
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Cavity flameholder is known as a promising technique to improve fuel mixing within the combustion chamber. This article studied the influences of the strut angle on the mixing performance of multi jets released inside the cavity flameholder. Finding the optimum jet configuration is done to promote the mixing performance of fuel through chamber when strut is applied in the upstream of the cavity flameholder. The impact of strut angle, fuel jet direction, and free-stream Mach number on the performance of three multi jets inside the chamber is disclosed in our research. For the simulation of our model, turbulent SST model is employed to obtain fuel distribution through the cavity. Our findings indicate that the counter jet is more operative in mixing of the fuel than co-jet since the main circulation is close to counter-jet, and fuel could efficiently distribute by the main circulation. Highlights: The impact of strut angle on fuel mixing inside the cavity is studied. CFD method is applied for the simulation of the supersonic flow in the model. The orientation of the multi hydrogen jet on fuel distribution is investigated. The impact of jet pressure on the penetration and mixing rate is examined.