Analysis of fluid insert noise reduction method with PIV

Jessica Morgan, Christopher Shoemaker, Dennis K. McLaughlin, Philip John Morris, Zachary P. Berger

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

Abstract

The fluid flow field of a supersonic jet from a converging-diverging nozzle with fluid inserts is studied in an experimental investigation. The Pennsylvania State University has developed a noise reduction method that uses corrugations or rows of fluid inserts in the diverging section of the nozzle. Far-field pressure measurements have successfully shown up to a 5 dB noise reduction in the peak noise direction. The current study utilizes Particle Image Velocimetry (PIV) to observe the near-field velocities directly at the exit plane of the nozzle. The flow field is analyzed and compared for various fluid insert configurations. The velocity field demonstrates the effect of the fluid inserts on the core flow of the jet. It is observed that the fluid inserts increase the width of the shear layer. A filtered Proper orthogonal decomposition (POD) method is discussed in the analysis of the flow field. The flow field results are compared to far-field measurements to better understand the mechanisms that produce noise reduction.

Original languageEnglish (US)
Title of host publication2018 AIAA/CEAS Aeroacoustics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105609
DOIs
StatePublished - Jan 1 2018
EventAIAA/CEAS Aeroacoustics Conference, 2018 - Atlanta, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 AIAA/CEAS Aeroacoustics Conference

Other

OtherAIAA/CEAS Aeroacoustics Conference, 2018
CountryUnited States
CityAtlanta
Period6/25/186/29/18

Fingerprint

Die casting inserts
Noise abatement
Velocity measurement
Flow fields
Fluids
Nozzles
Pressure measurement
Acoustic noise
Flow of fluids
Decomposition

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Aerospace Engineering

Cite this

Morgan, J., Shoemaker, C., McLaughlin, D. K., Morris, P. J., & Berger, Z. P. (2018). Analysis of fluid insert noise reduction method with PIV. In 2018 AIAA/CEAS Aeroacoustics Conference [AIAA 2018-3610] (2018 AIAA/CEAS Aeroacoustics Conference). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2018-3610
Morgan, Jessica ; Shoemaker, Christopher ; McLaughlin, Dennis K. ; Morris, Philip John ; Berger, Zachary P. / Analysis of fluid insert noise reduction method with PIV. 2018 AIAA/CEAS Aeroacoustics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2018. (2018 AIAA/CEAS Aeroacoustics Conference).
@inproceedings{342be2697b294dcca232032691c399d8,
title = "Analysis of fluid insert noise reduction method with PIV",
abstract = "The fluid flow field of a supersonic jet from a converging-diverging nozzle with fluid inserts is studied in an experimental investigation. The Pennsylvania State University has developed a noise reduction method that uses corrugations or rows of fluid inserts in the diverging section of the nozzle. Far-field pressure measurements have successfully shown up to a 5 dB noise reduction in the peak noise direction. The current study utilizes Particle Image Velocimetry (PIV) to observe the near-field velocities directly at the exit plane of the nozzle. The flow field is analyzed and compared for various fluid insert configurations. The velocity field demonstrates the effect of the fluid inserts on the core flow of the jet. It is observed that the fluid inserts increase the width of the shear layer. A filtered Proper orthogonal decomposition (POD) method is discussed in the analysis of the flow field. The flow field results are compared to far-field measurements to better understand the mechanisms that produce noise reduction.",
author = "Jessica Morgan and Christopher Shoemaker and McLaughlin, {Dennis K.} and Morris, {Philip John} and Berger, {Zachary P.}",
year = "2018",
month = "1",
day = "1",
doi = "10.2514/6.2018-3610",
language = "English (US)",
isbn = "9781624105609",
series = "2018 AIAA/CEAS Aeroacoustics Conference",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "2018 AIAA/CEAS Aeroacoustics Conference",

}

Morgan, J, Shoemaker, C, McLaughlin, DK, Morris, PJ & Berger, ZP 2018, Analysis of fluid insert noise reduction method with PIV. in 2018 AIAA/CEAS Aeroacoustics Conference., AIAA 2018-3610, 2018 AIAA/CEAS Aeroacoustics Conference, American Institute of Aeronautics and Astronautics Inc, AIAA, AIAA/CEAS Aeroacoustics Conference, 2018, Atlanta, United States, 6/25/18. https://doi.org/10.2514/6.2018-3610

Analysis of fluid insert noise reduction method with PIV. / Morgan, Jessica; Shoemaker, Christopher; McLaughlin, Dennis K.; Morris, Philip John; Berger, Zachary P.

2018 AIAA/CEAS Aeroacoustics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2018. AIAA 2018-3610 (2018 AIAA/CEAS Aeroacoustics Conference).

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

TY - GEN

T1 - Analysis of fluid insert noise reduction method with PIV

AU - Morgan, Jessica

AU - Shoemaker, Christopher

AU - McLaughlin, Dennis K.

AU - Morris, Philip John

AU - Berger, Zachary P.

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The fluid flow field of a supersonic jet from a converging-diverging nozzle with fluid inserts is studied in an experimental investigation. The Pennsylvania State University has developed a noise reduction method that uses corrugations or rows of fluid inserts in the diverging section of the nozzle. Far-field pressure measurements have successfully shown up to a 5 dB noise reduction in the peak noise direction. The current study utilizes Particle Image Velocimetry (PIV) to observe the near-field velocities directly at the exit plane of the nozzle. The flow field is analyzed and compared for various fluid insert configurations. The velocity field demonstrates the effect of the fluid inserts on the core flow of the jet. It is observed that the fluid inserts increase the width of the shear layer. A filtered Proper orthogonal decomposition (POD) method is discussed in the analysis of the flow field. The flow field results are compared to far-field measurements to better understand the mechanisms that produce noise reduction.

AB - The fluid flow field of a supersonic jet from a converging-diverging nozzle with fluid inserts is studied in an experimental investigation. The Pennsylvania State University has developed a noise reduction method that uses corrugations or rows of fluid inserts in the diverging section of the nozzle. Far-field pressure measurements have successfully shown up to a 5 dB noise reduction in the peak noise direction. The current study utilizes Particle Image Velocimetry (PIV) to observe the near-field velocities directly at the exit plane of the nozzle. The flow field is analyzed and compared for various fluid insert configurations. The velocity field demonstrates the effect of the fluid inserts on the core flow of the jet. It is observed that the fluid inserts increase the width of the shear layer. A filtered Proper orthogonal decomposition (POD) method is discussed in the analysis of the flow field. The flow field results are compared to far-field measurements to better understand the mechanisms that produce noise reduction.

UR - http://www.scopus.com/inward/record.url?scp=85051300460&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85051300460&partnerID=8YFLogxK

U2 - 10.2514/6.2018-3610

DO - 10.2514/6.2018-3610

M3 - Conference contribution

SN - 9781624105609

T3 - 2018 AIAA/CEAS Aeroacoustics Conference

BT - 2018 AIAA/CEAS Aeroacoustics Conference

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

ER -

Morgan J, Shoemaker C, McLaughlin DK, Morris PJ, Berger ZP. Analysis of fluid insert noise reduction method with PIV. In 2018 AIAA/CEAS Aeroacoustics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA. 2018. AIAA 2018-3610. (2018 AIAA/CEAS Aeroacoustics Conference). https://doi.org/10.2514/6.2018-3610