Third-order structure functions for isotropic turbulence with bidirectional energy transfer
Third-order structure functions for isotropic turbulence with bidirectional energy transfer
复制标题
具有双向能量传递的各向同性湍流的三阶结构函数
DOI:
10.1017/jfm.2019.651
复制
发表时间:
2019
影响因子:
3.7
通讯作者:
Bühler, Oliver
中科院分区:
文献类型:
--
作者:
Xie, Jin-Han;Bühler, Oliver
We derive and test a new heuristic theory for third-order structure functions that resolves the forcing scale in the scenario of simultaneous spectral energy transfer to both small and large scales, which can occur naturally, for example, in rotating stratified turbulence or magnetohydrodynamical (MHD) turbulence. The theory has three parameters – namely the upscale/downscale energy transfer rates and the forcing scale – and it includes the classic inertial-range theories as local limits. When applied to measured data, our global-in-scale theory can deduce the energy transfer rates using the full range of data, therefore it has broader applications compared with the local theories, especially in situations where the data is imperfect. In addition, because of the resolution of forcing scales, the new theory can detect the scales of energy input, which was impossible before. We test our new theory with a two-dimensional simulation of MHD turbulence.
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DOI:
--
发表时间:
1999
期刊:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子:
--
作者:
D. Bernard
通讯作者:
D. Bernard
影响因子:
3.7
作者:
E. Lindborg
通讯作者:
E. Lindborg
影响因子:
2.4
作者:
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通讯作者:
A. Alexakis
DOI:
10.1103/physreve.60.5544
发表时间:
1999
期刊:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子:
--
作者:
V. Yakhot
通讯作者:
V. Yakhot
影响因子:
3.7
作者:
S. Kurien;L. Smith;B. Wingate
通讯作者:
B. Wingate