TY - GEN
T1 - Numerical study of wind effect on green island wake
AU - Liang, Shin Jye
AU - Kuo, Nan Jung
AU - Doong, Dong Jiing
AU - Hsu, Tai Wen
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/11/20
Y1 - 2014/11/20
N2 - Wind effect on Kuroshio-induced island wake downstream the Green Island, Taiwan is studied using a depth-averaged shallow-water model. Seasonal monsoon effect on spatial-temporal scales, such as aspect ratio, dimensionless width, and Strouhal number as well as propagation speed of the vortices of Reynolds number 50 is studied. It is found that northeast monsoon has more pronounced effect in wake characteristics than southwest monsoon does, in terms of flow speed and recirculation zone, the aspect ratio, and dimensionless width. Vortices are pushed back close to the island with a smaller size of recirculation when Kuroshio flows against the northeast monsoon; Vortices are pushed farther downstream with a larger size of recirculation when Kuroshio flows in favor of the southwest monsoon. However, wind effect on temporal variation of island wake seems insignificant. The Strouhal number is between 0.116 and 0.125 from numerical simulations. This value is close to result of previous reports.
AB - Wind effect on Kuroshio-induced island wake downstream the Green Island, Taiwan is studied using a depth-averaged shallow-water model. Seasonal monsoon effect on spatial-temporal scales, such as aspect ratio, dimensionless width, and Strouhal number as well as propagation speed of the vortices of Reynolds number 50 is studied. It is found that northeast monsoon has more pronounced effect in wake characteristics than southwest monsoon does, in terms of flow speed and recirculation zone, the aspect ratio, and dimensionless width. Vortices are pushed back close to the island with a smaller size of recirculation when Kuroshio flows against the northeast monsoon; Vortices are pushed farther downstream with a larger size of recirculation when Kuroshio flows in favor of the southwest monsoon. However, wind effect on temporal variation of island wake seems insignificant. The Strouhal number is between 0.116 and 0.125 from numerical simulations. This value is close to result of previous reports.
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U2 - 10.1109/OCEANS-TAIPEI.2014.6964532
DO - 10.1109/OCEANS-TAIPEI.2014.6964532
M3 - Conference contribution
AN - SCOPUS:84918586909
T3 - OCEANS 2014 - TAIPEI
BT - OCEANS 2014 - TAIPEI
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - OCEANS 2014 MTS/IEEE Taipei Conference: Oceans Regeneration
Y2 - 7 April 2014 through 10 April 2014
ER -