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An analysis of booster tone noise using a time-linearized Navier-Stokes solver

Wukie, Nathan A
http://orcid.org/0000-0002-0129-1992
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814807

Abstract Details

2016, MS, University of Cincinnati, Engineering and Applied Science: Aerospace Engineering.
This thesis details a computational investigation of tone noise generated from a booster(low-pressure compressor) in a fan test rig. The computational study consisted of sets of time-linearized Navier-Stokes simulations in the booster region to investigate the blade-wake interactions that act as the primary noise-generating mechanism for the booster blade-passing frequency and harmonics. An acoustic test database existed with data at several operating points for the fan test rig that was used to compare against the predicted noise data from the computational study. It is shown that the computational methodology is able to capture trends in sound power for the 1st and 2nd booster tones along the operating line for the rig. It is also shown that the computational study underpredicts one of the tones at low power and is not able to capture a peak in the data at the Cutback condition. Further investigation of this type is warranted to quantify the source of discrepancies between the computational and experimental data as the reflected transmisison of sound off the fan through the bypass duct was not accounted for in this study.
Paul Orkwis, Ph.D. (Committee Chair)
Shaaban Abdallah, Ph.D. (Committee Member)
Ephraim Gutmark, Ph.D. D.Sc. (Committee Member)
Mark Turner, Sc.D. (Committee Member)
109 p.
Aerospace Materials
Computational Aeroacoustics; Turbomachinery; Computational Fluid Dynamics; Acoustics; Frequency-Domain Solvers

Recommended Citations

Citations

  • Wukie, N. A. (2016). An analysis of booster tone noise using a time-linearized Navier-Stokes solver [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814807

    APA Style (7th edition)

  • Wukie, Nathan. An analysis of booster tone noise using a time-linearized Navier-Stokes solver. 2016. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814807.

    MLA Style (8th edition)

  • Wukie, Nathan. "An analysis of booster tone noise using a time-linearized Navier-Stokes solver." Master's thesis, University of Cincinnati, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1458814807

    Chicago Manual of Style (17th edition)

ucin1458814807
588
© 2016, some rights reserved.Creative Commons License An analysis of booster tone noise using a time-linearized Navier-Stokes solver by Nathan A Wukie is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.