Numerical calculation of prandtl number in the stratification of water column of the Hormuz Strait
Turbulence is a form of movement characterized by an irregular or agitated motion. Turbulent motions are very common in nature. Most flows in the lower atmosphere and in the upper ocean are turbulent. The Turbulence has long had a special attraction for physicists and mathematicians; it has been called “the last great unsolved problem of classical physics”. In this study, hydrophysical measured data in the southern part of the Strait of Hormuz and with time step of half an hour during the period December 1996 to March 1998, by the University of Miami, and the meteorological station in island of Gheshm are used, then turbulence was simulated by General Ocean Turbulence Model (GOTM) (the second-order turbulent closure of Cheng et al. (2002) using the k-ε equations). The results showed that, turbulent kinetic energy (TKE) in different seasons, with different penetration depths were appeared at during the year. In the cold season, the kinetic energy of the turbulent expands from surface to bottom and in the warm seasons because of existing the seasonal thermocline, depth penetration of TKE are limited, and only expands from surface to top of thermocline layer. In this study, investigation of the turbulent Prandtl number (Pr) shows that, effect turbulent viscosity Preference to the production buoyancy in the middle depth.
| Main Authors: | , , , |
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| Format: | article biblioteca |
| Language: | Persian |
| Published: |
2017
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| Subjects: | Oceanography, Iran, Strait of Hormuz, Turbulent kinetic energy, Prandtl number, Water, |
| Online Access: | http://hdl.handle.net/1834/39454 |
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