Direct numerical simulations of the Kraichnan model: Scaling exponents and fusion rules

被引:21
作者
Fairhall, AL
Galanti, B
Lvov, VS
Procaccia, I
机构
[1] Department of Chemical Physics, Weizmann Institute of Science, Rehovot
关键词
D O I
10.1103/PhysRevLett.79.4166
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present results from direct numerical simulations of the Kraichnan model for passive scalar advection by a rapidly varying random scaling velocity field for intermediate values of the velocity scaling exponent. These results are compared with the scaling exponents predicted for this model by Further, we test the recently proposed fusion rules which govern the scaling properties of multipoint correlations, and present results on the linearity of the conditional statistics of the Laplacian operator on the scalar field.
引用
收藏
页码:4166 / 4169
页数:4
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