Ejectors for pressure recovery systems of supersonic chemical lasers
- Authors: Malkov V.M.1,2, Kiselev I.A.2, Shatalov I.V.1, Duk A.A.1, Emelyanova A.V.2
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Affiliations:
- SPE Advent
- Ustinov Voenmekh Baltic State Technical University
- Issue: Vol 24, No 3 (2017)
- Pages: 431-447
- Section: Article
- URL: https://journals.rcsi.science/1531-8699/article/view/216974
- DOI: https://doi.org/10.1134/S0869864317030118
- ID: 216974
Cite item
Abstract
Results of a numerical study of performance characteristics of supersonic ejectors with nozzles of different types are reported. The work was carried out with the aim of developing a high-performance ejector for pressure recovery systems of supersonic chemical lasers. A specific feature of the operation of ejectors in pressure recovery systems consists in that, in this case, the ejecting and ejected gases, as they undergo mixing, have different thermodynamic properties, and the ejection coefficient depends on the ratio between the temperatures of the gases and on the ratio of their molecular masses. Since the operation of an ejector is based on the mixing process, the task consisted in intensification of this process using nozzles of special geometries. The performance of ejectors was judged considering an integral parameter, the product of induction by compression ratio. The calculations of the 3D viscous gas flow in the ejector channel were performed using ANSYS software. In verifying the numerical model, a comparison with experimental data obtained earlier on a model ejector facility and during tests of real pressure recovery systems in operation with supersonic chemical lasers was performed.
About the authors
V. M. Malkov
SPE Advent; Ustinov Voenmekh Baltic State Technical University
Author for correspondence.
Email: v.m.malkov@gmail.com
Russian Federation, Saint Petersburg; Saint Petersburg
I. A. Kiselev
Ustinov Voenmekh Baltic State Technical University
Email: v.m.malkov@gmail.com
Russian Federation, Saint Petersburg
I. V. Shatalov
SPE Advent
Email: v.m.malkov@gmail.com
Russian Federation, Saint Petersburg
A. A. Duk
SPE Advent
Email: v.m.malkov@gmail.com
Russian Federation, Saint Petersburg
A. V. Emelyanova
Ustinov Voenmekh Baltic State Technical University
Email: v.m.malkov@gmail.com
Russian Federation, Saint Petersburg