为了提高超燃冲压发动机燃烧室的性能，本文提出了燃料喷注支板与烧蚀支板组合的燃烧室新方案，并研究了新方案对超燃冲压发动机燃烧室性能的影响。相比于单燃料喷注支板方式而言，加入烧蚀支板后，虽然燃烧室内的总压恢复系数有所下降，但燃烧室内燃料与空气的混合效率、燃烧效率均有显著提高，燃烧效率的提高弥补了燃烧室内总压损失所带来的机械能损失，使得燃料喷注支板和烧蚀支板组合方式下的燃烧室比冲高于单燃料喷注支板时的比冲。
In order to enhance the fuel-air mixing and promote the combustion efficiency, a novel seramjet combustor with assembled struts was proposed by setting an ablative strut behind the fuel strut injector in this paper. Compared with the scramjet combustor with one fuel strut injector, although the total pressure loss increases in some extent in the combustor with assembled struts, the fuel-air mixing, the flame stabilization and combustion efficiency are improved in a remarkable extent in the scramjet combustor with assembled struts. The specific impulse of the combustor increases due to the improvement of combustion efficiency in the scramjet combustor with assembled struts.
参考文献
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| [2] | 陈立红,顾洪斌,张新宇.支板凹腔一体化超燃冲压发动机实验研究[J].工程热物理学报,2007(04):717-719. |
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