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傅立叶级数
方法,推导出了牛顿
体偏心环空轴
速度场严格数学解析解.
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傅立叶级数方法,推导出了牛顿体偏心环空轴速度场严格数学解析解.
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.
用比较直接方法证明幂级数和函数在收敛域内可以逐项
公式；并得到了计算傅立叶系数一种简便方法.
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