Study on Influence of Fuel Injection Direction on Performance of Micro-combustor
The relationship between fuel particle evaporation and combustion efficiency is obtained by numerical simulation for a micro turbofan engine combustion chamber,and the influence of fuel injection direction on the performance of the combustion chamber is studied under the condition that the fuel injection speed in the combustion chamber is constant.The results show that increasing appropriate circumferential deflection angle within 45° is beneficial to extending the residence time of fuel particles,which is conducive to the evaporation of larger fuel particles before reaching the outlet of the combustion chamber,so as to improve the overall fuel evaporation rate and improve the combustion efficiency.With the increase of the circumferential deflectio from 0° to 15°,the combustion efficiency raises from 96.3%to 97.2%.
万方数据
维普
