Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods

Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods

Bibliographic Details
Main Author: Knapke, Robert D.
Language:English
Published: University of Cincinnati / OhioLINK 2011
Subjects:
Aerospace Materials
counter-rotation
aspiration
compressor
CFD
suction
unsteady
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=ucin1324409778
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-ucin13244097782021-08-03T06:15:19Z Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods Knapke, Robert D. Aerospace Materials counter-rotation aspiration compressor CFD suction unsteady An analysis of the MIT counter-rotating aspirated compressor (CRAC) has been conducted using two different 3D viscid turbulent unsteady solvers. The Turbo phase-lag time accurate and the Numeca FineTurbo Non-Linear Harmonic (NLH) methods were utilized to gain an understanding of the flow field. Grid dependency studies and comparisons with experimental data were conducted where appropriate. Speedline simulations were conducted to better understand the off-design performance of this compressor stage. Both simulation methods show good agreement with the experimental data. The best agreement is found between the FineTurbo simulation when using iso-thermal boundary conditions. Comparisons of simulations with and without aspiration illustrate the importance of aspiration on the stage performance. Unsteady analysis of the flow field is presented to show the details of the blade row interactions. A detailed analysis of the aspiration slot and plenum was also performed. 2011 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1324409778 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1324409778 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Aerospace Materials
counter-rotation
aspiration
compressor
CFD
suction
unsteady
spellingShingle Aerospace Materials
counter-rotation
aspiration
compressor
CFD
suction
unsteady
Knapke, Robert D.
Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods
author Knapke, Robert D.
author_facet Knapke, Robert D.
author_sort Knapke, Robert D.
title Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods
title_short Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods
title_full Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods
title_fullStr Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods
title_full_unstemmed Unsteady Analysis of a Counter-Rotating Aspirated Compressor Using Phase-Lag and Non-Linear Harmonic Methods
title_sort unsteady analysis of a counter-rotating aspirated compressor using phase-lag and non-linear harmonic methods
publisher University of Cincinnati / OhioLINK
publishDate 2011
url http://rave.ohiolink.edu/etdc/view?acc_num=ucin1324409778
work_keys_str_mv AT knapkerobertd unsteadyanalysisofacounterrotatingaspiratedcompressorusingphaselagandnonlinearharmonicmethods
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