A time-efficient optimization of subsonic centrifugal compressors with vaneless diffuser using 1D mean line approach based on empirical loss correlations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00381306" target="_blank" >RIV/68407700:21220/25:00381306 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1177/14680874251328054" target="_blank" >https://doi.org/10.1177/14680874251328054</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1177/14680874251328054" target="_blank" >10.1177/14680874251328054</a>
Alternative languages
Result language
angličtina
Original language name
A time-efficient optimization of subsonic centrifugal compressors with vaneless diffuser using 1D mean line approach based on empirical loss correlations
Original language description
The present paper focuses on the time-efficient optimization of subsonic centrifugal compressors with vaneless diffuser using a one-dimensional mean line approach based on empirical loss correlations. The main motivation for this research is the application of a compressor loss model, in-house developed and tested, in optimization task for the preliminary design of centrifugal compressor used in turboprop applications. While operational, various loss mechanisms and physical phenomena may occur in centrifugal compressors. Models of these losses, which are precisely described in this work, combined with off-design performance prediction algorithm, constitute an essential tool for predicting the offdesign behaviour of centrifugal compressors. This study utilizes an off-design performance prediction algorithm based on an iterative loop as the core of the geometry optimization process. The reconstruction of the subsonic Eckardt-O compressor’s geometry is described in great detail, and it is then transformed into parametric model using Bezier curves for further optimization. This process included the optimization of a total of 36 parameters describing various geometrical elements. A suitable candidate was found as a result of this optimization. By comparing the flow paths, it was concluded that the optimized compressor is more economical in terms of connection dimensions, which can be important in certain applications. Another comparison showed that the optimized compressor achieves comparable results in terms of pressure ratio as the original geometry and surpasses it in terms of efficiency by 1.49%.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20304 - Aerospace engineering
Result continuities
Project
<a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Engine Research
ISSN
1468-0874
e-ISSN
2041-3149
Volume of the periodical
26
Issue of the periodical within the volume
10
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
1563-1579
UT code for WoS article
001464115700001
EID of the result in the Scopus database
2-s2.0-105002463533