MODELING OF THE REYNOLDS STRESS IN THE BURSTING LAYER AFFECTED BY TYPHOON

Tomokazu Murakami, Jun Yoshino, Takashi Yasuda

Abstract


When large and intensive water surface displacements are caused by developed wind waves due to a typhoon, it is impossible in the Eulerian coordinate system to measure water particle velocities continuously in a domain between the wave trough level and the mean water level. Consequently, the domain between the wave trough level and the mean water level becomes a void zone where the Reynolds stress cannot be described. By treating the sea surface boundary layer including the void zone as a bursting layer, we modeled the Reynolds stress in the bursting layer. Validity of that modeling was verified by performing comparisons with experimentally obtained results.

Keywords


Reynolds stress; sea surface boundary layer; wind-wave breakers

References


Craig, P.D., and M.L. Banner. 1994. Modeling wave-enhanced turbulence in the ocean surface layer, J. Phys. Oceanogr., 24, 2546–2559. http://dx.doi.org/10.1175/1520-0485(1994)024<2546:MWETIT>2.0.CO;2

Hirt, C.W., B.D. Nichols, and N.C. Romero. 1975. SOLA-A numerical solution algorithm for transient fluid flows, Los Alamos Scientific Laboratory Report, LA-5852.

Mellor, G.L., and A.F. Blumberg. 2004. Wave breaking and ocean surface layer thermal response, J. Phys. Oceanogr., 34, 693–698. http://dx.doi.org/10.1175/2517.1

Murakami, T., and T. Yasuda. 2008. Bursting-Layer Modeling Based on the Assumption of the Averaged Sea Surface for Strong Wind-Driven Current, J. Phys. Oceanogr., 38, 896–908. http://dx.doi.org/10.1175/2007JPO3618.1

Ogasawara, T., and T. Yasuda. 2004. Mass flux and vertical distribution of currents caused by strong winds in a wave tank, J. Phys. Oceanogr., 34, 2712–2720. http://dx.doi.org/10.1175/JPO2659.1

Ogasawara, T., T. Yasuda and M. Takeda. 2002. Roles of wind wave breakers in momentum transfer processes from wind to currents and turbulence, Proc. 12th Int. Offshore & Polar Eng. Conf., 85–91.

Skachko, S., J.M. Brankart, B.F. Castruccio, P. Brasseur, and J. Verron. 2009. Improved Turbulent Air-Sea Flux Bulk Parameters for Controlling the Response of the Ocean Mixed Layer: A Sequential Data Assimilation Approach, J. Atmos. Oceanic Technol., 26, 538–555. http://dx.doi.org/10.1175/2008JTECHO603.1

Soloviev, A., and R. Lukas. 2006. The Near-Surface Layer of the Ocean: Structure, Dynamics and Applications, Springer, 144–217.

Wu, J. 1980. Wind-stress coefficients over sea surface near neutral conditions, J. Phys. Oceanogr., 10, 727–740. http://dx.doi.org/10.1175/1520-0485(1980)010<0727:WSCOSS>2.0.CO;2


Full Text: PDF

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.