提高热平衡积分法的求解精度  

Improving the Accuracy of Heat Balance Integral Methods

作　　者：王轶昆[1] 

机构地区：[1]内蒙古工业大学理学院,呼和浩特010051

出　　处：《内蒙古工业大学学报（自然科学版）》2012年第2期14-19,共6页Journal of Inner Mongolia University of Technology：Natural Science Edition

摘　　要：通过引入最小误差函数,并将其应用于传统的热平衡积分法,改进的热平衡积分法和替换的热平衡积分法,在求解的过程中来确定近似多项式的次数,有效降低了事先给定多项式次数引起的误差,通过对计算结果的比较,得出此方法求得的结果要明显优于传统的热平衡积分法,进而实现精度的提高.A minimum error function is employed in Heat Balance Integral Method, Refined Integral Method and Mternative Refined Integral Method, and the exponent of the approximating polynomal is deter- mined during solution process. The new solutions are compared with the known solutions,which surpass the traditional HIMB. So, the accuracy of the solutions is improved

关 键 词：传统的热平衡积分法 改进的热平衡积分法 替换的热平衡积分法 

分 类 号：O175.29[理学—数学]