By using the method of coordination transformation and expandedness Fourier series, an analytic solution is obtained from studying the Newtonian fluids laminar flow in eccentric anulus.
采
变换和函数展开成傅立叶级数的方法,推导出了牛顿流体偏心环空轴向流动速度场的严格数学解析解.
By using the method of coordination transformation and expandedness Fourier series, an analytic solution is obtained from studying the Newtonian fluids laminar flow in eccentric anulus.
采变换和函数展开成傅立叶级数的方法,推导出了牛顿流体偏心环空轴向流动速度场的严格数学解析解.
A relatively direct method is expounded in this paper to prove the termwise differentiation of power series, and a simple method is expressed to calculate the Fourier coefficient.
比较直接的方法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算傅立叶系数的一种简便方法.
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