3D spinodal decomposition in the inertial regime
3D spinodal decomposition in the inertial regime
复制标题
DOI：
10.1103/physrevlett.83.576
复制
发表时间：
1999-07-19
影响因子：
8.6
通讯作者：
Cates, ME
中科院分区：
文献类型：
--
作者：
Kendon, VM;Desplat, JC;Cates, ME
我们用格子玻尔兹曼方法模拟了三维对称二元流体的后期粗化过程。随着长度和时间的减少，l和t分别（粘度，密度和表面张力设置的尺度），我们的数据集覆盖1小于或类似于l小于或类似于10（5）和10小于或类似于t小于或类似于10（8）。雷诺数接近350。当Re大于或接近100时，我们发现了古川惯性标度的明显证据（l类似于t（2/3）），尽管从粘性区域（l类似于t）的交叉非常宽。尽管不能排除这种可能性，但我们没有发现任何迹象表明Re具有M提出的自限性（l类似于t（1/2））。格兰特和K.R. [物理学] S2，14（1999）]。
We simulate late-stage coarsening of a 3D symmetric binary fluid using a lattice Boltzmann method. With reduced lengths and times, l and t, respectively (with scales set by viscosity, density, and surface tension), our data sets cover 1 less than or similar to l less than or similar to 10(5) and 10 less than or similar to t less than or similar to 10(8). We achieve Reynolds numbers approaching 350. At Re greater than or similar to 100 we find clear evidence of Furukawa's inertial scaling (l similar to t(2/3)), although the crossover from the viscous regime (l similar to t) is very broad. Though it cannot be ruled out, we find no indication that Re is self-limiting (l similar to t(1/2)) as proposed by M. Grant and K.R. Elder [Phys. Rev. Lett. S2, 14 (1999)].