TY  - JOUR
AB  - Purpose Wave breaking significantly affects the exchange process between ocean and atmosphere. This paper aims to simulate the upper ocean dynamics under the influence of wave breaking, which may help to figure out the transport of energy by these breakers.Design/methodology/approach The authors use a breaker-LES model to simulate the oceanic boundary layer in hurricane conditions, in which breakers become the main source of momentum and energy instead of traditional wind stress.Findings The mean horizontal velocities and energy increase rapidly with wind speed, reflecting that input from atmosphere dominates the coherent structure in the upper ocean. The penetration ability of a breaker limits its effective depth and thus the total turbulent kinetic energy (TKE) decreases sharply near the surface. Langmuir circulation is the main source of TKE in deeper water. The authors compared the dissipation rate (e) in the simulations with two estimates and found that the model tends to the scaling of ε∼z–3.4 at extreme wind speeds.Originality/value The probability distribution of breakers is also discussed based on the balance between the input from atmosphere and output by wave breaking. The authors considered the contribution of micro-scale breakers and revaluated the probability density function. The results show stability in hurricane conditions.
VL  - 29
IS  - 3
SN  - 0961-5539
DO  - 10.1108/HFF-09-2018-0508
UR  - https://doi.org/10.1108/HFF-09-2018-0508
AU  - Wan Zhanhong
AU  - Lü Xiuyang
AU  - Jiawang Chen
AU  - Song Tianyu
AU  - Luo Shizhu
PY  - 2019
Y1  - 2019/01/01
TI  - Effects of wave breaking on the oceanic boundary layer in hurricane conditions
T2  - International Journal of Numerical Methods for Heat & Fluid Flow
PB  - Emerald Publishing Limited
SP  - 1167
EP  - 1177
Y2  - 2024/04/24
ER  -