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yt.yutian.金虫 (小有名气)
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Equation 1 assumes that the particles are completely pinched to the wall of the pinched section before entering the broadened section. Yamada et al.39 use the assumption of large width to depth ratio (wp/h . 1) microchannels for developing a compact relation that predicts the ratio of bulk streamflow rate QB and particle streamflow rate QP required for pinching the particle laden stream to the channel wall. This equation assumes that the velocity profile can be modeled as two infinite plates and does not account for the transverse velocity profile. Yamada’s relation underpredicts the actual flow rate ratio required to pinch the particle stream to the wall. Using the exact analytical solution for fully developed flow in a rectangular duct,43 we can predict the required flow rate ratio with greater accuracy. This analysis is given in the Supporting Information section S1. Here we use the flow rate ratios predicted using this theory. |
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【答案】应助回帖
yt.yutian.(金币+10, 翻译EPI+1): 谢谢 2011-05-28 21:37:02
| Equation 1 assumes that the particles are completely pinched to the wall of the pinched section before entering the broadened section. 方程式1假设，在进入扩宽部分之前，粒子被完全挤压在紧缩部分的壁上。Yamada et al.39 use the assumption of large width to depth ratio (wp/h . 1) microchannels for developing a compact relation that predicts the ratio of bulk streamflow rate QB and particle streamflow rate QP required for pinching the particle laden stream to the channel wall. Yamada 等利用大宽度深度比微流通道的假设来开发一种简洁的关系式，以预测为将含颗粒液流挤压到通道壁上所需的总体流速和粒子流速间的比值。This equation assumes that the velocity profile can be modeled as two infinite plates and does not account for the transverse velocity profile. 这一方程式假定速度变化图可被模式化为两个极大的平板，而且不考虑横断面速度变化的情形。Yamada’s relation underpredicts the actual flow rate ratio required to pinch the particle stream to the wall. 实际的为将含颗粒液流挤压到通道壁上所需的流速比值比Yamada 关系式估计的要高。Using the exact analytical solution for fully developed flow in a rectangular duct,43 we can predict the required flow rate ratio with greater accuracy. 利用用于矩形管道完全展开流的准确分析解法，我们可以更高的准确度预测所需的流速比。This analysis is given in the Supporting Information section S1. 这一分析在Supporting Information S1部分给出。Here we use the flow rate ratios predicted using this theory.这里我们使用应用这一理论预测的流速比。 |
2楼2011-05-28 11:49:22
