A SYMMETRICAL SOLUTION FOR VELOCITY PROFILE IN LAMINAR-FLOW THROUGH RECTANGULAR DUCTS
A SYMMETRICAL SOLUTION FOR VELOCITY PROFILE IN LAMINAR-FLOW THROUGH RECTANGULAR DUCTS
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DOI：
10.1016/0735-1933(94)90046-9
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发表时间：
1994-07-01
影响因子：
7
通讯作者：
MORINI, GL
中科院分区：
文献类型：
--
作者：
SPIGA, M;MORINI, GL
本文分析了矩形管道中牛顿流体在稳定状态、流体动力充分发展的层流中的速度分布。利用有限傅立叶变换，得到了描述速度分布和摩擦系数的解。给出二维速度分布的解形式上关于直角笛卡尔坐标x和y对称，并且与文献中通常引用的众所周知的速度分布相比，提供了更精确的数值结果，具有更短的计算时间。
The present analysis is concerned with the velocity distribution in steady state, hydrodynamically fully developed, laminar flow for Newtonian fluids in rectangular ducts. The solutions describing velocity profiles and friction factors are derived by using the finite Fourier transform. The solution giving the two-dimensional velocity distribution is formally symmetric with respect to the rectangular Cartesian coordinates x and y, and provides more accurate numerical results, with shorter computational times, in comparison to the well known velocity distributions usually quoted in literature.