Active Suppression of Rotating Stall Inception with Distributed Jet Actuation

An analytical and experimental investigation of the effectiveness of full-span distributed jet actuation for active suppression of long length-scale rotating stall inception is carried out. Detailed modeling and experimental verification highlight the important effects of m...

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Main Author: Huu Duc Vo
Format: Article
Language:English
Published: Wiley 2007-01-01
Series:International Journal of Rotating Machinery
Online Access:http://dx.doi.org/10.1155/2007/56808
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author Huu Duc Vo
author_facet Huu Duc Vo
author_sort Huu Duc Vo
collection DOAJ
description An analytical and experimental investigation of the effectiveness of full-span distributed jet actuation for active suppression of long length-scale rotating stall inception is carried out. Detailed modeling and experimental verification highlight the important effects of mass addition, discrete injectors, and feedback dynamics, which may be overlooked in preliminary theoretical studies of active control with jet injection. A model of the compression system incorporating nonideal injection and feedback dynamics is verified with forced response measurements to predict the right trends in the movement of the critical pole associated with the stall precursor. Active control experiments with proportional feedback control show that the predicted stall precursors are suppressed to give a 5.5% range extension in compressor flow coefficient. In addition, results suggest that the proposed model could be used to design a more sophisticated controller to further improve performance while reducing actuator bandwidth requirements.
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institution Kabale University
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series International Journal of Rotating Machinery
spelling doaj-art-1d6be12c6dca44a9b212982dba1c0e972025-02-03T05:58:06ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342007-01-01200710.1155/2007/5680856808Active Suppression of Rotating Stall Inception with Distributed Jet ActuationHuu Duc Vo0Département de génie mécanique, École Polytechnique de Montréal, Campus Université de Montréal, 2900 boulevard Édouard-Montpetit, 2500 chemin de Polytechnique, bureau C318.9, Montréal, Québec H3T 1J4, CanadaAn analytical and experimental investigation of the effectiveness of full-span distributed jet actuation for active suppression of long length-scale rotating stall inception is carried out. Detailed modeling and experimental verification highlight the important effects of mass addition, discrete injectors, and feedback dynamics, which may be overlooked in preliminary theoretical studies of active control with jet injection. A model of the compression system incorporating nonideal injection and feedback dynamics is verified with forced response measurements to predict the right trends in the movement of the critical pole associated with the stall precursor. Active control experiments with proportional feedback control show that the predicted stall precursors are suppressed to give a 5.5% range extension in compressor flow coefficient. In addition, results suggest that the proposed model could be used to design a more sophisticated controller to further improve performance while reducing actuator bandwidth requirements.http://dx.doi.org/10.1155/2007/56808
spellingShingle Huu Duc Vo
Active Suppression of Rotating Stall Inception with Distributed Jet Actuation
International Journal of Rotating Machinery
title Active Suppression of Rotating Stall Inception with Distributed Jet Actuation
title_full Active Suppression of Rotating Stall Inception with Distributed Jet Actuation
title_fullStr Active Suppression of Rotating Stall Inception with Distributed Jet Actuation
title_full_unstemmed Active Suppression of Rotating Stall Inception with Distributed Jet Actuation
title_short Active Suppression of Rotating Stall Inception with Distributed Jet Actuation
title_sort active suppression of rotating stall inception with distributed jet actuation
url http://dx.doi.org/10.1155/2007/56808
work_keys_str_mv AT huuducvo activesuppressionofrotatingstallinceptionwithdistributedjetactuation