| 高精度ENO格式在射流数值模拟中的应用 |
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| 引用本文： | 徐文灿,黄振宇.高精度ENO格式在射流数值模拟中的应用[J].空气动力学学报,2001,19(4):401-406. |
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| 作者姓名： | 徐文灿 黄振宇 |
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| 作者单位： | 1. 北京理工大学机电控制工程系,北京,100081:
2. 中国船舶研究中心上海分部,上海,200011 |
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| 摘 要： | 本文分析了ENO格式的特点，并应用于全NS方程的迁移项和压力顶，模拟了轴对称和三维射流。首先对轴对称自由射流为算例比较了高阶TVD格式和ENO格式，证实了ENO格式捕获复杂激波波系的能力；其次计算了四喷管湍射流干扰流场，给出了相应的计算结果；最后计算了四股射流流入圆管内的流场，给出了物理量沿壁面和截面的分布。
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| 关 键 词： | 计算流体力学 ENO格式 数值模拟 轴对称射流 干扰流场 |
| 文章编号： | 0258-1825(2001)04-0401-06 |
| 修稿时间： | 2000年5月8日 |
Calculation of jets flowfield with high resolution ENO |
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| XU Wen can ,HUANG Zhen yu.Calculation of jets flowfield with high resolution ENO[J].Acta Aerodynamica Sinica,2001,19(4):401-406. |
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| Authors: | XU Wen can HUANG Zhen yu |
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| Institution: | XU Wen can 1,HUANG Zhen yu |
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| Abstract: | The third order ENO scheme has been applied to discrete convective terms and pressure terms of Navier Stokes equations, whose characteristics have also been analyzed. At first, the high order TVD and ENO schemes are compared with the calculation of axis symmetrical free jet and the capacity of the ENO scheme to capture complex shock waves is proven. Then the interaction turbulent flow field of four jets is calculated and its results are given. Finally,the fourengine plume in a tube is calculated and the distributions of the variables in sections and on the wall are given. |
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| Keywords: | computational fluid dynamics ENO jet flow in a tube |
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