| 无波动,无自由参数的耗散差分格式（NND）在喷流计算中的应用 |
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| 引用本文： | 郑敏,张涵信.无波动,无自由参数的耗散差分格式（NND）在喷流计算中的应用[J].空气动力学学报,1989,7(3):273-281. |
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| 作者姓名： | 郑敏 张涵信 |
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| 作者单位： | 中国空气动力研究与发展中心
(郑敏)，中国空气动力研究与发展中心(张涵信) |
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| 摘 要： | 本文用文献1]建立的无波动、无自由参数的耗散差分格式(NND格式),对无粘喷流流动进行了数值模拟,并就一典型的自由射流流动,与国外高精度、高分辨率的PLM差分格式(Piecewise-Linear Method)的计算结果和实验结果作了比较,得到了很一致的结果,且所用的计算时间少于PLM格式。
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| 关 键 词： | 空气动力学 喷流 耗散 差分格式 |
APPLICATION OF NON-OSCILLATORY AND NON-FREE-PARAMETERS DISSlPATIVE FINIT DIFFERENCE SCHEME TO THE CALCULATION OF FREE-JET FLOWS |
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| Zheng Min Zhang Hanxin.APPLICATION OF NON-OSCILLATORY AND NON-FREE-PARAMETERS DISSlPATIVE FINIT DIFFERENCE SCHEME TO THE CALCULATION OF FREE-JET FLOWS[J].Acta Aerodynamica Sinica,1989,7(3):273-281. |
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| Authors: | Zheng Min Zhang Hanxin |
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| Institution: | China Aerodynamics Reseach and Development Center |
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| Abstract: | The inviscid jet flow field was Simulated Numerically using the Non-Oscillatory and Non-Free-Parameters Dissipative finite difference scheme which had been established in reference 1]. For a typical Free-jet flow,the comparison of the results obtained by NND scheme and that by Piecewise-Linear Method2], which is a high resolution and high accuracy finite difference scheme, and the experimental results have been made, it shows that the results in this paper are in good agree-ment with the results obtained by PLM and the experimental results; Particularly, the computer time of NND Scheme is much less than PLMs. |
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| Keywords: | computational aerodynamics finite difference method inviscid flow jet-flow |
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