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.
采用坐标变换和函数展开成
级数的
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.
采用坐标变换和函数展开成级数的法,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.
用比较直接的法证明幂级数的和函数在收敛域内可以逐项微分的公式；并得到了计算系数的一种简便法.
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