Using synthetic jet generators in the systems of control of separated flows of turbomachines

Authors

DOI:

https://doi.org/10.15587/2312-8372.2015.46933

Keywords:

generators of synthetic jets, pulse-periodic systems, blade rows, separated flows, moving element

Abstract

The article presents the features of the use of pulse-periodic systems, which are presented in the form of generators of synthetic jets and can be used to eliminate flow separation of blade rows of turbomachines.

It is known that the control system of separated flows characterized by greater efficiency in the modes of operation of stages of turbomachines that are close to resonance. Therefore, ensuring the flexibility of the control system of separated flows and the possibility of its adjustment under certain operating conditions of stages of turbomachines, greatly expand the range of effectiveness of the latter. Such flexibility of the control system of separated flow can be achieved by using a moving element, which is used as a vibration exciter. With moving parts can configure the system to the required frequency range, the moving element can also play the role of a diagnostic element of the system.

It should be noted that the integral separated wake on the stages of axial turbomachines has a requirement for control method for the presence of feedback, which in turn needs a shaping procedure and settings.

Adjusting the natural frequency of the control system of separated flows will provide expansion of its range of effective work, as well as increase the efficiency of stages of turbomachines in general. The study results can be used for the selection of configuration of moving parts of repetitively pulsed systems.

Author Biographies

Микола Юрійович Богданов, National Aviation University, Kosmonavta Komarova 1, Kyiv, Ukraine, 03058

Senior teacher

Aviation engines department

Федір Іванович Кірчу, National Aviation University, Kosmonavta Komarova 1, Kyiv, Ukraine, 03058

Candidate of Technical Sciences, Associate Professor

Aviation engines department

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Published

2015-07-23

How to Cite

Богданов, М. Ю., & Кірчу, Ф. І. (2015). Using synthetic jet generators in the systems of control of separated flows of turbomachines. Technology Audit and Production Reserves, 4(3(24), 13–20. https://doi.org/10.15587/2312-8372.2015.46933

Issue

Vol. 4 No. 3(24) (2015): Mathematical modeling. Systems and control processes

Section

Systems and Control Processes: Original Research

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Copyright (c) 2016 Микола Юрійович Богданов, Федір Іванович Кірчу

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