首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Computing sensitivity coefficients by using complex differentiation: Application to heat conduction problem
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Computing sensitivity coefficients by using complex differentiation: Application to heat conduction problem

机译:使用复杂分化计算灵敏度系数:应用于导热问题

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摘要

A simple and efficient computational method for Sensitivity Coefficient calculation is presented. Sensitivity analysis are carried out for a simple one-dimensional heat conduction problem with respect to two parameters: thermal conductivity (k) and volumetric heat capacity (c). Results obtained by finite difference and complex step differentiation are compared with analytical solution in non-dimensional form. With an arbitrary small step-size, the complex differentiation method can achieve near analytical accuracy in languages that support complex arithmetic. Further implementation of complex step differentiation in Matlab environment is explained with some precautions.
机译:提出了一种简单有效的敏感系数计算的计算方法。 对两个参数的简单一维导热问题进行灵敏度分析:导热率(k)和体积热容量(c)。 将通过有限差异和复杂的步骤分化获得的结果与非尺寸形式的分析溶液进行比较。 随着任意的小步进大小,复杂的差异化方法可以在支持复杂算术的语言中实现接近的分析精度。 进一步实施Matlab环境中的复杂步骤差异化以一些预防措施来说解释。

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