| 两方程湍流模型混合隐式迭代/解析算法研究 |
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| 引用本文： | 胡海洋,白鹏.两方程湍流模型混合隐式迭代/解析算法研究[J].力学学报,2011,43(4):646-652. |
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| 作者姓名： | 胡海洋 白鹏 |
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| 作者单位： | 中国航天空气动力技术研究院 |
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| 摘 要： | 采用通量修正二阶TVD格式和混合隐式时间推进/解析算法求解k-ε湍流模型的输运方程以克服其计算刚性. 通过过膨胀状态下轴对称喷管内流场、带圆转方型面二元喷管内外流场两个算例, 验证了其配合改进的多重网格算法对计算效率的提高. 计算结果与试验数据进行了对比.
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| 关 键 词： | 二元喷管 |
| 收稿时间： | 2010-04-26 |
| 修稿时间： | 2010-12-31 |
NUMERICAL SIMULATION OF NOZZLE'S FLOW FIELD BASED ON MIXED IMPLICIT ITERATION-ANALYSIS ALGORITHM FOR TWO EQUATION TURBULENCE MODEL |
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| Hu Haiyang Bai Peng.NUMERICAL SIMULATION OF NOZZLE'S FLOW FIELD BASED ON MIXED IMPLICIT ITERATION-ANALYSIS ALGORITHM FOR TWO EQUATION TURBULENCE MODEL[J].chinese journal of theoretical and applied mechanics,2011,43(4):646-652. |
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| Authors: | Hu Haiyang Bai Peng |
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| Institution: | Chinese Academy of Aerospace and Aeronautics, Beijing 100074, China |
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| Abstract: | The flux modification of Harten's second-order TVD scheme,coupled with implicit iteration-analysis algorithm,is employed to overcome the computational stiffness of k-e turbulence model.Internal flow field of an axisymmetric nozzle and internal-external flow field of a two-dimensional nozzle are simulated to confirm the improvement of calculation efficiency by the above methods when using improved multigrid strategy.The calculation results are compared with experimental data. |
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| Keywords: | two equation turbulence model stiffness multigrid numerical simulation two-dimensional nozzle |
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