高阶、高分辨率的WENO格式大大加强了对于复杂流场结构的分辨能力和计算精度，但计算时间较TVD格式有了明显的增加。近似隐式分裂的LU方法能够加快求解稳态问题的收敛速度。本文结合WENO格式和LU方法实现了求解稳态问题的有效方法，它使得求解稳态问题在收敛速度和计算精度上都有了较大的提高。通过算例的数值分析可以看出，上述方法不但收敛速度有了明显的提高，而且对于复杂流动现象仍然具有良好的分辨能力。%High order, high resolution WENO scheme can improved theresolution and accu racy of the complex flow structure. Approximated implicit split lower upper meth od can speedup the convergence for time-marching problem. By combining WENO sch eme and LU method, an efficient algorithm for steady flow calculating is presented. The numerical results show that the algorithm can speedup the convergence ,and is distinguished for describing the complex structure of flow.
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