每年出版 6 期
ISSN 打印: 1948-2590
ISSN 在线: 1948-2604
INVESTIGATION OF CHARACTERISTIC PROPERTIES OF FLOWS IN DUCTS DURING INTERFERENCE BETWEEN PERTURBATIONS AND PSEUDO-SHOCK
摘要
The phenomenon of recirculation zones during the interaction of free or fixed pseudo-shock with perturbations from a thin needle, vortex filament and low-pressure jet is considered. The effect of this interaction on the integral characteristics of flows in ducts and the methods of their control are evaluated. Based on studies of the interaction of vortex filament generated ahead of the entry of the duct with pseudo-shock, a method to improve the characteristics of the flow in the duct in the case of a vortex filament passing into the inlet is offered. Improvement can be accomplished by the creation of a local recirculation zone at the duct entry by the sharp needle placed in front of the entry plane.
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