Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall

Kenichiro Iwakiri, Masato Furukawa, Seiichi Ibaraki, Isao Tomita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Citations (Scopus)

Abstract

This paper presents a combined experimental and numerical analysis of rotating stall in a transonic centrifugal compressor impeller for automotive turbochargers. Stall characteristics of the compressor were examined by two high-response pressure transducers mounted on the casing wall near the impeller inlet. The pressure traces were analyzed by wavelet transforms to estimate the disturbance waves quantitatively. Three-dimensional unsteady internal flow fields were simulated numerically by Detached Eddy Simulation (DES) coupled LES-RANS approach. The analysis results show good agreements on both compressor performance characteristics and the unsteady flow features at the rotating stall. At stall inception, spiral-type breakdown of the full-blade tip leakage vortex was found out at some passages and the brokendown regions propagated against the impeller rotation. This phenomenon changed with throttling, and tornado-type separation vortex caused by the full-blade leading edge separation dominated the flow field at developed stall condition. It is similar to the flow model of short-length scale rotating stall established in an axial compressor rotor.

Original languageEnglish
Title of host publicationProceedings of the ASME Turbo Expo 2009
Subtitle of host publicationPower for Land, Sea and Air
Pages1611-1622
Number of pages12
EditionPART B
DOIs
Publication statusPublished - Dec 1 2009
Event2009 ASME Turbo Expo - Orlando, FL, United States
Duration: Jun 8 2009Jun 12 2009

Publication series

NameProceedings of the ASME Turbo Expo
NumberPART B
Volume7

Other

Other2009 ASME Turbo Expo
CountryUnited States
CityOrlando, FL
Period6/8/096/12/09

Fingerprint

Centrifugal compressors
Compressors
Flow fields
Vortex flow
Tornadoes
Pressure transducers
Unsteady flow
Wavelet transforms
Numerical analysis
Rotors

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Iwakiri, K., Furukawa, M., Ibaraki, S., & Tomita, I. (2009). Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall. In Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air (PART B ed., pp. 1611-1622). (Proceedings of the ASME Turbo Expo; Vol. 7, No. PART B). https://doi.org/10.1115/GT2009-59516

Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall. / Iwakiri, Kenichiro; Furukawa, Masato; Ibaraki, Seiichi; Tomita, Isao.

Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air. PART B. ed. 2009. p. 1611-1622 (Proceedings of the ASME Turbo Expo; Vol. 7, No. PART B).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Iwakiri, K, Furukawa, M, Ibaraki, S & Tomita, I 2009, Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall. in Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air. PART B edn, Proceedings of the ASME Turbo Expo, no. PART B, vol. 7, pp. 1611-1622, 2009 ASME Turbo Expo, Orlando, FL, United States, 6/8/09. https://doi.org/10.1115/GT2009-59516
Iwakiri K, Furukawa M, Ibaraki S, Tomita I. Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall. In Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air. PART B ed. 2009. p. 1611-1622. (Proceedings of the ASME Turbo Expo; PART B). https://doi.org/10.1115/GT2009-59516
Iwakiri, Kenichiro ; Furukawa, Masato ; Ibaraki, Seiichi ; Tomita, Isao. / Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall. Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea and Air. PART B. ed. 2009. pp. 1611-1622 (Proceedings of the ASME Turbo Expo; PART B).
@inproceedings{73b0a5c7f3df41fbb5576b5c69c5d468,
title = "Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall",
abstract = "This paper presents a combined experimental and numerical analysis of rotating stall in a transonic centrifugal compressor impeller for automotive turbochargers. Stall characteristics of the compressor were examined by two high-response pressure transducers mounted on the casing wall near the impeller inlet. The pressure traces were analyzed by wavelet transforms to estimate the disturbance waves quantitatively. Three-dimensional unsteady internal flow fields were simulated numerically by Detached Eddy Simulation (DES) coupled LES-RANS approach. The analysis results show good agreements on both compressor performance characteristics and the unsteady flow features at the rotating stall. At stall inception, spiral-type breakdown of the full-blade tip leakage vortex was found out at some passages and the brokendown regions propagated against the impeller rotation. This phenomenon changed with throttling, and tornado-type separation vortex caused by the full-blade leading edge separation dominated the flow field at developed stall condition. It is similar to the flow model of short-length scale rotating stall established in an axial compressor rotor.",
author = "Kenichiro Iwakiri and Masato Furukawa and Seiichi Ibaraki and Isao Tomita",
year = "2009",
month = "12",
day = "1",
doi = "10.1115/GT2009-59516",
language = "English",
isbn = "9780791848883",
series = "Proceedings of the ASME Turbo Expo",
number = "PART B",
pages = "1611--1622",
booktitle = "Proceedings of the ASME Turbo Expo 2009",
edition = "PART B",

}

TY - GEN

T1 - Unsteady and three-dimensional flow phenomena in a transonic centrifugal compressor impeller at rotating stall

AU - Iwakiri, Kenichiro

AU - Furukawa, Masato

AU - Ibaraki, Seiichi

AU - Tomita, Isao

PY - 2009/12/1

Y1 - 2009/12/1

N2 - This paper presents a combined experimental and numerical analysis of rotating stall in a transonic centrifugal compressor impeller for automotive turbochargers. Stall characteristics of the compressor were examined by two high-response pressure transducers mounted on the casing wall near the impeller inlet. The pressure traces were analyzed by wavelet transforms to estimate the disturbance waves quantitatively. Three-dimensional unsteady internal flow fields were simulated numerically by Detached Eddy Simulation (DES) coupled LES-RANS approach. The analysis results show good agreements on both compressor performance characteristics and the unsteady flow features at the rotating stall. At stall inception, spiral-type breakdown of the full-blade tip leakage vortex was found out at some passages and the brokendown regions propagated against the impeller rotation. This phenomenon changed with throttling, and tornado-type separation vortex caused by the full-blade leading edge separation dominated the flow field at developed stall condition. It is similar to the flow model of short-length scale rotating stall established in an axial compressor rotor.

AB - This paper presents a combined experimental and numerical analysis of rotating stall in a transonic centrifugal compressor impeller for automotive turbochargers. Stall characteristics of the compressor were examined by two high-response pressure transducers mounted on the casing wall near the impeller inlet. The pressure traces were analyzed by wavelet transforms to estimate the disturbance waves quantitatively. Three-dimensional unsteady internal flow fields were simulated numerically by Detached Eddy Simulation (DES) coupled LES-RANS approach. The analysis results show good agreements on both compressor performance characteristics and the unsteady flow features at the rotating stall. At stall inception, spiral-type breakdown of the full-blade tip leakage vortex was found out at some passages and the brokendown regions propagated against the impeller rotation. This phenomenon changed with throttling, and tornado-type separation vortex caused by the full-blade leading edge separation dominated the flow field at developed stall condition. It is similar to the flow model of short-length scale rotating stall established in an axial compressor rotor.

UR - http://www.scopus.com/inward/record.url?scp=77953228453&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77953228453&partnerID=8YFLogxK

U2 - 10.1115/GT2009-59516

DO - 10.1115/GT2009-59516

M3 - Conference contribution

SN - 9780791848883

T3 - Proceedings of the ASME Turbo Expo

SP - 1611

EP - 1622

BT - Proceedings of the ASME Turbo Expo 2009

ER -