Simulating turbulent mixing caused by local instability of internal gravity waves
Simulating turbulent mixing caused by local instability of internal gravity waves
复制标题
模拟内部重力波局部不稳定引起的湍流混合
DOI:
10.1017/jfm.2021.119
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发表时间:
2021
影响因子:
3.7
通讯作者:
Dauxois Thierry
中科院分区:
文献类型:
--
作者:
Onuki Yohei;Joubaud Sylvain;Dauxois Thierry
With the aim of assessing internal wave-driven mixing in the ocean, we develop a new technique for direct numerical simulations of stratified turbulence. Since the spatial scale of oceanic internal gravity waves is typically much larger than that of turbulence, fully incorporating both in a model would require a high computational cost, and is therefore out of our scope. Alternatively, we cut out a small domain periodically distorted by an unresolved large-scale internal wave and locally simulate the energy cascade to the smallest scales. In this model, even though the Froude number of the outer wave, obtained here are larger by a factor of about two than previously reported.
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DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
S. D. B. Kops;J. Riley
通讯作者:
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影响因子:
1.7
作者:
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3.7
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