Boundary layer interaction with porous surface and implications for aerodynamic noise reduction

Syamir Alihan Showkat Ali; Carlos R.  Ilário da Silva

Boundary layer interaction with porous surface and implications for aerodynamic noise reduction

Syamir Alihan Showkat Ali
, Carlos R. Ilário da Silva

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

128 Downloads (Pure)

Abstract

The present study discusses the mechanisms of flow interaction with porous surfaces as a passive flow control method for blunt trailing edges. To better understand the effect of flow interaction with a porous surface, measurements have been carried out for the boundary layer growth and boundary layer surface pressure and velocity correlations. Hot-wire measurements are also performed to investigate the energy content of the turbulent structure within the boundary layer. Two types of porous materials are considered for this study. Results have shown that the use of porous materials can stabilize the boundary layer growth, lessen the surface pressure fluctuations and reduce the energy content of the large turbulent structure in the outer layer. These results are essential for understanding the flow-porous interaction in real world applications.

Original language	English
Title of host publication	Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016)
Subtitle of host publication	Athens, Greece, 10-14 July 2016
Publisher	International Institute of Acoustics and Vibration
Number of pages	8
ISBN (Print)	9789609922623
Publication status	Published - 29 Apr 2016

Publication series

Name	Proceedings of the International Congress on Sound and Vibration
Publisher	International Institute of Acoustics and Vibration
Volume	23
ISSN (Print)	2329-3675

Access to Document

Full-text PDF (final published version)
This is the final published version of the article (version of record). It first appeared online via IIAV at https://www.iiav.org/archives_icsv_last/2016_icsv23/content/papers/papers/full_paper_945_20160429162251372.pdf. Please refer to any applicable terms of use of the publisher.
Final published version, 627 KB

https://www.iiav.org/archives_icsv_last/2016_icsv23/index0e20.html?va=viewpage&vaid=401#toc_19

Handle.net

Persistent link

Cite this

Showkat Ali, S. A., & Ilário da Silva, C. R. (2016). Boundary layer interaction with porous surface and implications for aerodynamic noise reduction. In Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016): Athens, Greece, 10-14 July 2016 Article 945 (Proceedings of the International Congress on Sound and Vibration; Vol. 23). International Institute of Acoustics and Vibration. https://www.iiav.org/archives_icsv_last/2016_icsv23/index0e20.html?va=viewpage&vaid=401#toc_19

Showkat Ali, Syamir Alihan ; Ilário da Silva, Carlos R. . / Boundary layer interaction with porous surface and implications for aerodynamic noise reduction. Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016): Athens, Greece, 10-14 July 2016. International Institute of Acoustics and Vibration, 2016. (Proceedings of the International Congress on Sound and Vibration).

@inproceedings{d36814c01b4d4ad99f2ec0c688927fe5,

title = "Boundary layer interaction with porous surface and implications for aerodynamic noise reduction",

abstract = "The present study discusses the mechanisms of flow interaction with porous surfaces as a passive flow control method for blunt trailing edges. To better understand the effect of flow interaction with a porous surface, measurements have been carried out for the boundary layer growth and boundary layer surface pressure and velocity correlations. Hot-wire measurements are also performed to investigate the energy content of the turbulent structure within the boundary layer. Two types of porous materials are considered for this study. Results have shown that the use of porous materials can stabilize the boundary layer growth, lessen the surface pressure fluctuations and reduce the energy content of the large turbulent structure in the outer layer. These results are essential for understanding the flow-porous interaction in real world applications.",

author = "\{Showkat Ali\}, \{Syamir Alihan\} and \{Il{\'a}rio da Silva\}, \{Carlos R.\}",

year = "2016",

month = apr,

day = "29",

language = "English",

isbn = "9789609922623",

series = "Proceedings of the International Congress on Sound and Vibration",

publisher = "International Institute of Acoustics and Vibration",

booktitle = "Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016)",

}

Showkat Ali, SA & Ilário da Silva, CR 2016, Boundary layer interaction with porous surface and implications for aerodynamic noise reduction. in Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016): Athens, Greece, 10-14 July 2016., 945, Proceedings of the International Congress on Sound and Vibration, vol. 23, International Institute of Acoustics and Vibration. <https://www.iiav.org/archives_icsv_last/2016_icsv23/index0e20.html?va=viewpage&vaid=401#toc_19>

Boundary layer interaction with porous surface and implications for aerodynamic noise reduction. / Showkat Ali, Syamir Alihan; Ilário da Silva, Carlos R. .
Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016): Athens, Greece, 10-14 July 2016. International Institute of Acoustics and Vibration, 2016. 945 (Proceedings of the International Congress on Sound and Vibration; Vol. 23).

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Boundary layer interaction with porous surface and implications for aerodynamic noise reduction

AU - Showkat Ali, Syamir Alihan

AU - Ilário da Silva, Carlos R.

PY - 2016/4/29

Y1 - 2016/4/29

N2 - The present study discusses the mechanisms of flow interaction with porous surfaces as a passive flow control method for blunt trailing edges. To better understand the effect of flow interaction with a porous surface, measurements have been carried out for the boundary layer growth and boundary layer surface pressure and velocity correlations. Hot-wire measurements are also performed to investigate the energy content of the turbulent structure within the boundary layer. Two types of porous materials are considered for this study. Results have shown that the use of porous materials can stabilize the boundary layer growth, lessen the surface pressure fluctuations and reduce the energy content of the large turbulent structure in the outer layer. These results are essential for understanding the flow-porous interaction in real world applications.

AB - The present study discusses the mechanisms of flow interaction with porous surfaces as a passive flow control method for blunt trailing edges. To better understand the effect of flow interaction with a porous surface, measurements have been carried out for the boundary layer growth and boundary layer surface pressure and velocity correlations. Hot-wire measurements are also performed to investigate the energy content of the turbulent structure within the boundary layer. Two types of porous materials are considered for this study. Results have shown that the use of porous materials can stabilize the boundary layer growth, lessen the surface pressure fluctuations and reduce the energy content of the large turbulent structure in the outer layer. These results are essential for understanding the flow-porous interaction in real world applications.

M3 - Conference Contribution (Conference Proceeding)

SN - 9789609922623

T3 - Proceedings of the International Congress on Sound and Vibration

BT - Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016)

PB - International Institute of Acoustics and Vibration

ER -

Showkat Ali SA, Ilário da Silva CR. Boundary layer interaction with porous surface and implications for aerodynamic noise reduction. In Proceedings of the 23rd International Congress on Sound and Vibration (ICSV 2016): Athens, Greece, 10-14 July 2016. International Institute of Acoustics and Vibration. 2016. 945. (Proceedings of the International Congress on Sound and Vibration).

Boundary layer interaction with porous surface and implications for aerodynamic noise reduction

Abstract

Publication series

Access to Document

Handle.net

Fingerprint

Cite this