A time-efficient optimization of subsonic centrifugal compressors with vaneless diffuser using 1D mean line approach based on empirical loss correlations

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

A time-efficient optimization of subsonic centrifugal compressors with vaneless diffuser using 1D mean line approach based on empirical loss correlations

Popis výsledku v původním jazyce

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%.

Název v anglickém jazyce

A time-efficient optimization of subsonic centrifugal compressors with vaneless diffuser using 1D mean line approach based on empirical loss correlations

Popis výsledku anglicky

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%.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

<a href="/cs/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Centrum pokročilých leteckých technologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Engine Research

ISSN

1468-0874

e-ISSN

2041-3149

Svazek periodika

26

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

17

Strana od-do

1563-1579

Kód UT WoS článku

001464115700001

EID výsledku v databázi Scopus

2-s2.0-105002463533