摘要
1 Introducti on Spray and combustion characteristics of an oxidantcentered liquid oxygen/liquid methane(LOX/LCH_(4))pintle injector under different momentum ratio control modes are studied by numerical simulation.Results show a high total momentum ratio(TMR)can be good for boosting overall combustion efficiency.Either an increase in LOX injection pressure drop or a reduction in LCH_(4) pressure drop can increase the TMR and promote the diffusion of the high-temperature zone along the length direction of the combustion chamber.
基金
supported by the National Natural Science Foundation of China(Nos.11572346 and 12072367)
the Natural Science Foundation of Hunan Province(No.2020JJ4666),China。
