| 流体在环形通道中作层流流动时的规律 |
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| 引用本文： | 徐继红,陶俊. 流体在环形通道中作层流流动时的规律[J]. 阜阳师范学院学报(自然科学版), 2001, 18(2): 17-19 |
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| 作者姓名： | 徐继红 陶俊 |
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| 作者单位： | 淮南工业学院职业技术学院化工系,淮南,232007 |
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| 摘 要： | 对于环形流道,流速分布受两个圆筒壁面的影响,最大流速位置必然出现在内径和外径之间,通过对环形通道分区域受力分析,得出分区域的速度分布公式,并根据连续性原理,最大速度只有一个,推导出最大速度位置、平均速度,进而得出摩擦系数计算式中常数的计算公式,并通过极限验证了公式的正确性,得出了流体在平行板间流动时 M=96的结论。
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| 关 键 词： | 环形通道 牛顿粘性定律 速度分布 摩擦系数 平行板 |
| 文章编号： | 1004-4329(2001)02-0017-03 |
| 修稿时间： | 2001-12-28 |
The Fluid-flow Rule at Laminar-flow in Ring-shape-channel |
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| Xu Jihong,Tao Jun. The Fluid-flow Rule at Laminar-flow in Ring-shape-channel[J]. Journal of Fuyang Teachers College:Natural Science, 2001, 18(2): 17-19 |
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| Authors: | Xu Jihong Tao Jun |
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| Abstract: | For ring-shape-channel,velocity distributing of flow is affected by two cylinders,the loca- tion of max-velocity cannot but present between inner-diameter and outer-diameter.Via sub-area bearing- force-analysis in ring-shape-channel,comes out a sub-area velocity-distributing formula.Basing on continu- ity-principle,max-velocity is only one,and the location of max-velonity,and average-velocity are derivated; moreover,the invariable calculation formula of friction-modulus are worked out.Via seeking limit,we vali- date the correctness of the formulas,and reach the conclusion of M=96 when fluid flowing between par- alle-board. |
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| Keywords: | Ring-shape-channel Newton viscidity-law Velocity distrbuting Friction-modulus Parallel-board |
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