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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Hybrid spline difference method for heat transfer and thermal stresses in annular fins
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Hybrid spline difference method for heat transfer and thermal stresses in annular fins

机译：环状鳍片传热和热应力混合样条差分法

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摘要

This study proposes a high-accuracy numerical method-the hybrid spline difference method-which is as simple as the finite-difference method, and discusses its feasibility by analyzing the internal temperature and thermal stresses of rectangular annular fins changing the heat transfer coefficient. The hybrid spline difference method can simplify the complex computational process of the traditional spline method, and obtain the high accuracy of O(ξ ~4) regardless of whether the equation and boundary conditions have a first differential term. As compared with other numerical methods, the numerical accuracy of temperature and thermal stresses obtained by internal arithmetic is improved greatly considering the effects of heat transfer, convection, and radiation. The results prove that the proposed method can the replace traditional cubic spline method and finite-difference method directly, as a new simple and high-accuracy numerical method.
机译：本研究提出了一种与有限差分法一样简单的高精度数值方法-混合样条差法，并通过分析矩形环形翅片的内部温度和热应力改变传热系数来讨论其可行性。混合样条差分法可以简化传统样条方法的复杂计算过程，无论方程和边界条件是否具有一阶微分项，都可以获得O（ξ〜4）的高精度。与其他数值方法相比，考虑到传热，对流和辐射的影响，通过内部算术获得的温度和热应力的数值精度大大提高。结果证明，该方法可以直接替代传统的三次样条法和有限差分法，作为一种新的简单，高精度的数值方法。

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