IUTAM Symposium on Flow Control and MEMS
IUTAM Symposium on Flow Control and MEMS
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IUTAM 流量控制和 MEMS 研讨会
DOI：
10.1007/978-1-4020-6858-4_33
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Hascoët E
中科院分区：
文献类型：
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作者：
Hascoët E
我们对电磁分形强制和瑞利阻尼二维流进行直接数值模拟 (DNS)。我们的模拟显示了宽带幂律能谱。当磁体分布的分形维数为Df=0.5时，p≈2.5，与之前的实验室实验一致。而且，当磁体的分形分布改变时，p随磁体的分形维数Df线性变化。因此，能谱的分形控制是可能的。
We perform Direct Numerical Simulations (DNS) of electromagnetically fractal-forced and Rayleigh-damped two-dimensional flows. Our simulations show broad band power law energy spectra. When the fractal dimension of the magnets’ distribution isDf=0.5 thenp≈ 2.5 in agreement with previous laboratory experiment. Moreover, when the fractal distribution of magnets is changed,pvaries linearly withDf, the fractal dimension of the magnet set up. Hence, fractal control of the energy spectrum is possible.