Numerical investigation of relation between unsteady behavior of tip leakage vortex and rotating disturbance in a transonic axial compressor rotor

K. Yamada, K. Funazaki, H. Sasaki

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

16 Citations (Scopus)

Abstract

The purpose of this study is to have a better understanding of the unsteady behavior of tip clearance flow at near-stall condition from a multi-passage simulation and to clarify the relation between such unsteadiness and rotating disturbance. This study is motivated by the following concern. A single passage simulation has revealed the occurrence of the tip leakage vortex breakdown at near-stall condition in a transonic axial compressor rotor, leading to the unsteadiness of the tip clearance flow field in the rotor passage. These unsteady flow phenomena were similar to those in the rotating instability, which is classified in one of the rotating disturbances. In other words, it is possible that the tip leakage vortex breakdown produces a rotating disturbance such as the rotating instability. Three-dimensional unsteady RANS calculation was conducted to simulate the rotating disturbance in a transonic axial compressor rotor (NASA Rotor 37). The four-passage simulation was performed so as to capture a short length scale disturbance like the rotating instability and the spike-type stall inception. The simulation demonstrated that the unsteadiness of tip leakage vortex, which was derived from the vortex breakdown at near-stall condition, invoked the rotating disturbance in the rotor, which is similar to the rotating instability.

Original languageEnglish
Title of host publication2008 Proceedings of the ASME Turbo Expo
Subtitle of host publicationPower for Land, Sea, and Air
Pages425-436
Number of pages12
EditionPART A
DOIs
Publication statusPublished - Dec 1 2008
Event2008 ASME Turbo Expo - Berlin, Germany
Duration: Jun 9 2008Jun 13 2008

Publication series

NameProceedings of the ASME Turbo Expo
NumberPART A
Volume6

Other

Other2008 ASME Turbo Expo
CountryGermany
CityBerlin
Period6/9/086/13/08

Fingerprint

Compressors
Vortex flow
Rotors
Unsteady flow
NASA
Flow fields

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Yamada, K., Funazaki, K., & Sasaki, H. (2008). Numerical investigation of relation between unsteady behavior of tip leakage vortex and rotating disturbance in a transonic axial compressor rotor. In 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air (PART A ed., pp. 425-436). (Proceedings of the ASME Turbo Expo; Vol. 6, No. PART A). https://doi.org/10.1115/GT2008-50779

Numerical investigation of relation between unsteady behavior of tip leakage vortex and rotating disturbance in a transonic axial compressor rotor. / Yamada, K.; Funazaki, K.; Sasaki, H.

2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. PART A. ed. 2008. p. 425-436 (Proceedings of the ASME Turbo Expo; Vol. 6, No. PART A).

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

Yamada, K, Funazaki, K & Sasaki, H 2008, Numerical investigation of relation between unsteady behavior of tip leakage vortex and rotating disturbance in a transonic axial compressor rotor. in 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. PART A edn, Proceedings of the ASME Turbo Expo, no. PART A, vol. 6, pp. 425-436, 2008 ASME Turbo Expo, Berlin, Germany, 6/9/08. https://doi.org/10.1115/GT2008-50779
Yamada K, Funazaki K, Sasaki H. Numerical investigation of relation between unsteady behavior of tip leakage vortex and rotating disturbance in a transonic axial compressor rotor. In 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. PART A ed. 2008. p. 425-436. (Proceedings of the ASME Turbo Expo; PART A). https://doi.org/10.1115/GT2008-50779
Yamada, K. ; Funazaki, K. ; Sasaki, H. / Numerical investigation of relation between unsteady behavior of tip leakage vortex and rotating disturbance in a transonic axial compressor rotor. 2008 Proceedings of the ASME Turbo Expo: Power for Land, Sea, and Air. PART A. ed. 2008. pp. 425-436 (Proceedings of the ASME Turbo Expo; PART A).
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