Experimental study of the effect of tangential swirling injection on diffuser effectiveness


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Abstract

The experimental data on studying the tangential swirling injection effect on the effectiveness of a conical diffuser with an aperture angle of 18° and the expansion ratio equal to four are presented. It has been indicated that the effect becomes maximal for a given diffuser at an insignificant initial thickness of the boundary layer, when the injected jet swirling angle is 15° and the relative injection rate is 7.7%, as a result of which the pressure increases from 0.48 to 0.79 if the injected jet energy is taken into account.

About the authors

A. N. Arbekov

Bauman Moscow State Technical University

Author for correspondence.
Email: arbekov@bmstu.ru
Russian Federation, Moscow, 107005

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