乙烯超燃燃烧室菱形孔射流的数值优化
Numerical Optimization on Supersonic Combustion using Ethylene with Diamond-shaped Orifices
Received date: 2015-07-07
Online published: 2025-05-30
张涵 , 吴达 , 王应洋 , 王旭东 . 乙烯超燃燃烧室菱形孔射流的数值优化[J]. 弹箭与制导学报, 2016 , 36(3) : 60 -64 . DOI: 10.15892/j.cnki.djzdxb.2016.03.017
Based on investigation of influence of diamond-shaped orifices with different length-width ratio and various deflection angle on cold flow characteristics of supersonic combustion, numerical simulation was done for evaluating several patterns for mixing enhancement.It is found that the diamond-shaped orifice whose length-width ratio is 5 behaves the best in mixing efficiency and fuel penetration among these different models, but this kind of diamond-shaped orifice heightens total pressure loss.With increase of deflection angle of injector, penetration height of the fuel and mixing efficiency firstly increase and then decrease.The model with 30 degree deflection angle of injector has the best characteristics, but the distance between the flow field and the injector is longer, the effect on increasing penetration height of the fuel is weaker.
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