The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern

Seyed Mohammad Hasheminejad; Hatsari Mitsudharmadi; S. H. Winoto; Kim Boon Lua; Hong Tong Low

doi:10.1115/IMECE201552897

The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern

Seyed Mohammad Hasheminejad, Hatsari Mitsudharmadi, S. H. Winoto, Kim Boon Lua, Hong Tong Low

Clean Combustion Research Center

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The evolution of streamwise counter-rotating vortices induced by different leading edge patterns is investigated quantitatively using hot-wire anemometer. A notched and triangular leading edge with the same wavelength and amplitude were designed to induce streamwise vortices over a flat plate at Reynolds number (based on the wavelength of the leading edge patterns) of 3080 corresponding to free-stream velocity of 3 m/s. The streamwise velocity at different streamwise locations collected and analyzed using a single wire probe hot-wire anemometer showed reveal different characteristics of boundary layer flow due to the presence of these two leading edge patterns. The major difference is the appearance of an additional streamwise vortex between the troughs of the notched pattern. Such vortices increase the mixing effect in the boundary layer as well as the velocity profile.

Original language	English (US)
Title of host publication	Fluids Engineering Systems and Technologies
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791857465
DOIs	https://doi.org/10.1115/IMECE201552897
State	Published - 2015
Event	ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 - Houston, United States Duration: Nov 13 2015 → Nov 19 2015

Publication series

Name	ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume	7A-2015

Other

Other	ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015
Country/Territory	United States
City	Houston
Period	11/13/15 → 11/19/15

Bibliographical note

Publisher Copyright:
© 2015 by ASME.

ASJC Scopus subject areas

Mechanical Engineering

Access to Document

10.1115/IMECE201552897

Cite this

Hasheminejad, S. M., Mitsudharmadi, H., Winoto, S. H., Lua, K. B., & Low, H. T. (2015). The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern. In Fluids Engineering Systems and Technologies (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 7A-2015). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201552897

Hasheminejad, Seyed Mohammad ; Mitsudharmadi, Hatsari ; Winoto, S. H. et al. / The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern. Fluids Engineering Systems and Technologies. American Society of Mechanical Engineers (ASME), 2015. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)).

@inproceedings{10807fdbe3ca4e66938be6d8371455b9,

title = "The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern",

abstract = "The evolution of streamwise counter-rotating vortices induced by different leading edge patterns is investigated quantitatively using hot-wire anemometer. A notched and triangular leading edge with the same wavelength and amplitude were designed to induce streamwise vortices over a flat plate at Reynolds number (based on the wavelength of the leading edge patterns) of 3080 corresponding to free-stream velocity of 3 m/s. The streamwise velocity at different streamwise locations collected and analyzed using a single wire probe hot-wire anemometer showed reveal different characteristics of boundary layer flow due to the presence of these two leading edge patterns. The major difference is the appearance of an additional streamwise vortex between the troughs of the notched pattern. Such vortices increase the mixing effect in the boundary layer as well as the velocity profile.",

author = "Hasheminejad, {Seyed Mohammad} and Hatsari Mitsudharmadi and Winoto, {S. H.} and Lua, {Kim Boon} and Low, {Hong Tong}",

note = "Publisher Copyright: {\textcopyright} 2015 by ASME.; ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015 ; Conference date: 13-11-2015 Through 19-11-2015",

year = "2015",

doi = "10.1115/IMECE201552897",

language = "English (US)",

series = "ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "Fluids Engineering Systems and Technologies",

}

Hasheminejad, SM, Mitsudharmadi, H, Winoto, SH, Lua, KB & Low, HT 2015, The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern. in Fluids Engineering Systems and Technologies. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), vol. 7A-2015, American Society of Mechanical Engineers (ASME), ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015, Houston, United States, 11/13/15. https://doi.org/10.1115/IMECE201552897

The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern. / Hasheminejad, Seyed Mohammad; Mitsudharmadi, Hatsari; Winoto, S. H. et al.
Fluids Engineering Systems and Technologies. American Society of Mechanical Engineers (ASME), 2015. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 7A-2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern

AU - Hasheminejad, Seyed Mohammad

AU - Mitsudharmadi, Hatsari

AU - Winoto, S. H.

AU - Lua, Kim Boon

AU - Low, Hong Tong

PY - 2015

Y1 - 2015

N2 - The evolution of streamwise counter-rotating vortices induced by different leading edge patterns is investigated quantitatively using hot-wire anemometer. A notched and triangular leading edge with the same wavelength and amplitude were designed to induce streamwise vortices over a flat plate at Reynolds number (based on the wavelength of the leading edge patterns) of 3080 corresponding to free-stream velocity of 3 m/s. The streamwise velocity at different streamwise locations collected and analyzed using a single wire probe hot-wire anemometer showed reveal different characteristics of boundary layer flow due to the presence of these two leading edge patterns. The major difference is the appearance of an additional streamwise vortex between the troughs of the notched pattern. Such vortices increase the mixing effect in the boundary layer as well as the velocity profile.

AB - The evolution of streamwise counter-rotating vortices induced by different leading edge patterns is investigated quantitatively using hot-wire anemometer. A notched and triangular leading edge with the same wavelength and amplitude were designed to induce streamwise vortices over a flat plate at Reynolds number (based on the wavelength of the leading edge patterns) of 3080 corresponding to free-stream velocity of 3 m/s. The streamwise velocity at different streamwise locations collected and analyzed using a single wire probe hot-wire anemometer showed reveal different characteristics of boundary layer flow due to the presence of these two leading edge patterns. The major difference is the appearance of an additional streamwise vortex between the troughs of the notched pattern. Such vortices increase the mixing effect in the boundary layer as well as the velocity profile.

UR - http://www.scopus.com/inward/record.url?scp=84982958627&partnerID=8YFLogxK

U2 - 10.1115/IMECE201552897

DO - 10.1115/IMECE201552897

M3 - Conference contribution

AN - SCOPUS:84982958627

T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)

BT - Fluids Engineering Systems and Technologies

PB - American Society of Mechanical Engineers (ASME)

T2 - ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015

Y2 - 13 November 2015 through 19 November 2015

ER -

Hasheminejad SM, Mitsudharmadi H, Winoto SH, Lua KB, Low HT. The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern. In Fluids Engineering Systems and Technologies. American Society of Mechanical Engineers (ASME). 2015. (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)). doi: 10.1115/IMECE201552897

The evolution of streamwise counter-rotating vortices in flat plate boundary layer with leading edge pattern

Abstract

Publication series

Other

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this