The order-disorder transition in colloidal suspensions under shear flow
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چکیده
We study the order-disorder transition in colloidal suspensions under shear flow by performing Brownian dynamics simulations. We characterize the transition in terms of a statistical property of time-dependent maximum value of the structure factor. We find that its power spectrum exhibits the power-law behaviour only in the ordered phase. The power-law exponent is approximately -2 at frequencies greater than the magnitude of the shear rate, while the power spectrum exhibits the 1/f -type fluctuations in the lower frequency regime. PACS numbers: 05.40.-a, 05.70.Fh, 83.80.Hj The order-disorder transition in colloidal suspensions under shear flow 2
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The order-disorder transition of colloidal suspensions under shear flow
We study the order-disorder transition of colloidal suspensions under shear flow by performing Brownian dynamics simulations. We characterize the transition in terms of a statistical property of time-dependent maximum value of the structure factor. We find that its power spectrum exhibits the power-law behaviour only in the ordered phase. The power-law exponent is roughly -2 in the higher frequ...
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تاریخ انتشار 2008