Mixing of supersonic carrier gas and backward-jet

Document Type

Article

Publication Date

12-1-2006

Abstract

Under the condition of different backward-jet angle, the experiment was carried on to research the mixing effect of the heating project by supersonic counter flow mixing. Combustion mixtures of hydrogen and air, used as supersonic carrier gas, were mixed with the room-temperature air used as a backward jet. The temperature distributions of flow fields before and after the mixing process were used as the criterion to evaluate the mixing effect of carrier gas and backward-jet. Experimental results indicated that mixing was becoming relatively homogeneous with the increment of the mixing distance. The mixing effect was optimal when the backward-jet angle was approximately 40°. Increasing the initial pressure of backward-jet was an effective way to increase the specific flux between the backward jet and carrier gas, and thus the mixing effect raised.

Publication Source (Journal or Book title)

Kongqi Donglixue Xuebao/Acta Aerodynamica Sinica

First Page

430

Last Page

432

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