悬移质颗粒的运动方程求解

作者：顾伟

单位：珠光工程发展有限公司

关键词：悬移质颗料  运动方程  流速

分类号：TV14

出版年,卷(期):页码：1997,21(4):27-29

摘要：

本文提出了悬移质颗粒运动方程的新解，相对于早期将由流体加速度引起的颗料运动速度Up划分为──水体速度u、通过静止水体的沉降速度ω、和偏移速度V三个部分的研究成果更为准确。由于施滞力可以用重力和比值|Up-u|／ω来表示，而使问题进一步简化，尽管E．G．Ho（1964）和Svendsenetal（1997）已经提出了层流条件下，颗粒运动的线性解，但本文提出了更进一步的定量分析解。

A new solving to the equation of motion of the suspended load particle is given in this paper. The result ismore accurate comparing with the early achievements that the moving velocity of the suspended load particle UPcaused by fluid acceleration is divided into three parts of the water body velocity (u ), the settlement velocitythrough still waters (co) and deviation velocity (v ).Because towing tension can be represented as gravity and ratio | Up-u | /to, the matter is further simplified,although E. G. Ho (1964) and Svendsen et al (1977) had suggested a linear solution of particle movement underthe laminar condition, the further quantitative ana1ysis solution is advanced in this paper.

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参考文献：

[1] Bhattacharya, P K(1971).Sediment Suspension inShoaling Waves.Ph D Thesis,Univ of lowa,100PP. [2] Ho,H W(1964).Fall Velocity of a SphEre in anoscillating Fluid Ph D thesis, Umv of Iova. [3] Kennedy,J F and F R Locher(1972).Sediment Suspension by Water Waves.in:Waves on Beaches,ed.Meyer.Academic Press. [4] Hation, M (196). The MeChanics of Suspended Sediment due to Standing Waves.Coastal Engineering inJapan, Vol 12, pp 69-81. [5] Svendsen(1977). A Model Of Sediment Motion UnderWaves. Internal Researcn Note,ISVA,Teen Univ Denmark.

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