PDF(Pubmed)
Abstract：
The present investigation examines the usage of rectangular multi-injectors for fuel injection in a supersonic combustion chamber. To evaluate the fuel jet penetration and distribution, a computational method is applied to model the supersonic compressible flow with cross multi-fuel jets released from annular rectangular nozzles with different nozzle configurations. The main effort of this work is to evaluate the jet interactions in the existence of cross-supersonic flow. Fuel jet penetration and distribution are evaluated for three proposed injector arrangements to attain the more efficient option for better fuel mixing. Our results show that reducing injector space improves fuel mixing inside the combustor via creation of strong vortices. Beside, injection of air from internal nozzle increase fuel interactions and fuel mixing inside combustion chamber.
摘要：
本研究检查了在超音速燃烧室中使用矩形多喷射器进行燃油喷射的情况。为了评估燃料射流的渗透和分布，一种计算方法应用于模拟从具有不同喷嘴配置的环形矩形喷嘴释放的交叉多燃料射流的超音速可压缩流。这项工作的主要工作是评估跨超音速流存在下的射流相互作用。对三种建议的喷射器布置评估了燃料射流的渗透和分布，以获得更有效的选择，以更好地混合燃料。我们的结果表明，减小喷射器空间可以通过产生强涡流来改善燃烧室内的燃料混合。旁边,从内部喷嘴喷射的空气增加了燃烧室内的燃料相互作用和燃料混合。
