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
N1 - Publisher Copyright:
© 2015 by ASME.
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 -