摘要
对具有相同出口面积的波瓣喷管和圆喷管两种引射系统，在低压比条件下进行了引射能力和混合效率的对比研究，同时对波瓣喷管引射系统的三维流场进行了测试。结果表明：与圆喷管相比，波瓣喷管可使引射系统的引射能力和混合效率得到显著的改善，其原因在于波瓣喷管能够在其尾缘形成大尺度的轴向旋涡和较低的静压。
he lobed nozzle and round nozzle experiments,both with the same exit areas,are in low pressure ratio ejector systems to investigate the pumping capability and mixing efficiency.And the 3-D flow fields inside the lobed nozzle ejector are measured.The results show that the ejector pumping capability and nuxing efficiency are obviously improved by using the lobed noz-zle which can generate large-scale axial vortiees and cause lower static pressure at the nozzle exit.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1994年第12期1512-1514,共3页
Acta Aeronautica et Astronautica Sinica
