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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >CALCULATION OF ELECTROHYDRODYNAMIC FLOW IN A CIRCULAR CYLINDRICAL CONDUIT
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CALCULATION OF ELECTROHYDRODYNAMIC FLOW IN A CIRCULAR CYLINDRICAL CONDUIT

机译:圆形圆柱管道中电动力流的计算

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摘要

The electrohydrodynamic flow of a fluid in an ''ion drag'' configuration in a circular cylindrical conduit is governed by a non-linear second-order ordinary differential equation. The degree of non-linearity in this equation is determined by a nondimensional parameter alpha and the equation can be approximated by two different linear equations for very small or very large values of alpha respectively. Perturbation solutions of the fluid velocities for alpha much less than 1 and alpha much less than 1 are developed. A Gauss-Newton finite-difference solver combined with the continuation method and a Runge-Kutta shooting method are used to provide numerical results for the fluid velocity over a large range of values of alpha. Both numerical and analytical results are compared in order to establish the range of validity for the perturbation solutions. [References: 8]
机译:圆柱形导管中“离子阻力”配置的流体的电动流体流动由非线性二阶常微分方程控制。该方程式中的非线性程度由一个无量纲参数α决定,并且该方程式可以分别由两个不同的线性方程式近似,分别用于非常小的或非常大的α值。开发了远小于1的alpha和远小于1的alpha的流体速度摄动解。高斯-牛顿有限差分求解器与延续方法和Runge-Kutta射击方法相结合,可用于在很大的α值范围内提供流体速度的数值结果。比较数值结果和分析结果,以便确定扰动解的有效性范围。 [参考:8]

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