Numerical simulation on two-phase flow in the trapped vortex flame holder-based powdered fuel ramjet

A trapped vortex flame holder was designed for the powdered fuel ramjet,and the configration of trapped vortex flame holder-based powdered fuel ramjet was put forward.The 3D two-phase flow field in the magnesium powdered fuel ramjet was numerically simmulated by the particle trajectory model.The effects of the ramjet internal flow field on the combustion efficiency was contrastively analyzed between the two configrations,so as to provide references for the further experimental investigation.The results show that the ramjet combustion efficiency is improved by 10% with the application of trapped vortex flame holder.