Entropy cascade and energy inverse transfer in two-dimensional convective turbulence.
Entropy cascade and energy inverse transfer in two-dimensional convective turbulence.
复制标题
二维对流湍流中的熵级联和能量逆传递。
DOI：
10.1103/physrevlett.73.1501
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发表时间：
1994
影响因子：
8.6
通讯作者：
Suzuki
中科院分区：
文献类型：
--
作者：
Toh;Suzuki
二维系统建模的中心区域在实验箱的基础上的Boussinesq近似数值研究。它是假设的混合和边界层的中心区域上的效果被考虑作为强迫的温度动力学。中性稳定分层和均匀性也被假定。熵（T2）谱与实验结果进行了比较。结果表明，小尺度下的熵级联过程和大尺度模式诱导通过能量逆转移。
Two-dimensional system modeling a central region in an experimental box on the basis of the Boussinesq approximation is examined numerically. It is assumed that the effect of mixing and boundary layers on the central region is taken into account only as a forcing to the temperature dynamics. Neutrally stable stratification and homogeneity are also assumed. Entropy (T 2) spectra are compared with ones obtained by experiments. It is shown that smaller scales are governed by the entropy cascade process and large-scale modes are induced through the energy inverse transfer.