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首页> 外文期刊>Annual review of marine science >Annual Review of Marine Science Mixing Efficiency in the Ocean
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Annual Review of Marine Science Mixing Efficiency in the Ocean

机译：海洋海洋科学混合效率的年度审查

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摘要

Mixing efficiency is the ratio of the net change in potential energy to the energy expended in producing the mixing. Parameterizations of efficiency and of related mixing coefficients are needed to estimate diapycnal diffusivity from measurements of the turbulent dissipation rate. Comparing diffusivities from microstructure profilingwith those inferred from the thickening rate of four simultaneous tracer releases has verified, within observational accuracy, 0.2 as the mixing coefficient over a 30-fold range of diapycnal diffusivities. Although some mixing coefficients can be estimated from pycnocline measurements, at present mixing efficiency must be obtained from channel flows, laboratory experiments, and numerical simulations. Reviewing the different approaches demonstrates that estimates and parameterizations for mixing efficiency and coefficients are not converging beyond the at-sea comparisons with tracer releases, leading to recommendations for a community approach to address this important issue.
机译：混合效率是潜在能量的净变化与能量的净变化的比率占生产混合的能量。需要效率和相关混合系数的参数化来估计与湍流耗散速率的测量值估计二数据扩散率。比较从来自四个同时示踪释放的增稠速率推断的微观结构分析的扩散性已经在观察精度内验证，0.2作为混合系数，以30倍的延迟扩散率。尽管可以从Pycnocline测量估计一些混合系数，但是目前必须从信道流，实验室实验和数值模拟中获得混合效率。审查不同的方法表明，混合效率和系数的估计和参数化不是与跟踪释放的海上比较融合，导致社区方法解决这个重要问题的建议。

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  • 来源
    《Annual review of marine science》 |2018年第1期|共31页
  • 作者

    M.C. Gregg; E.A. D’Asaro; J.J. Riley; E. Kunze;

  • 作者单位

    Applied Physics Laboratory and School of Oceanography University of Washington Seattle Washington 98105 USA;

    Applied Physics Laboratory and School of Oceanography University of Washington Seattle Washington 98105 USA;

    Department of Mechanical Engineering University of Washington Seattle Washington 98195 USA;

    Northwest Research Associates Redmond Washington 98052 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋学;
  • 关键词

    Mixing; Efficiency; the Ocean;

    机译：混合;效率;海洋;

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