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
展开成傅立
级的方法,
了牛顿流体偏心环空轴向流动速度场的严格学解析解.
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.
采用坐标变换和函展开成傅立级的方法,了牛顿流体偏心环空轴向流动速度场的严格学解析解.
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.
用比较直接的方法证明幂级的和函在收敛域内可以逐项微分的公式；并得到了计算傅立
的一种简便方法.
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