| 叶轮与叶片扩压器相干非定常流动的数值模拟 |
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| 引用本文： | 周莉,席光,王尚锦.叶轮与叶片扩压器相干非定常流动的数值模拟[J].工程热物理学报,2006,27(6):953-955. |
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| 作者姓名： | 周莉 席光 王尚锦 |
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| 作者单位： | 西安交通大学能源与动力工程学院,陕西,西安,710049;西北工业大学动力与能源学院,陕西,西安,710072;西安交通大学能源与动力工程学院,陕西,西安,710049 |
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| 摘 要： | 本文采用了不对粘性项作任何近似的时间倾斜算子,来处理转子和静子栅距不相等时的周期性边界条件施加时所出现的问题。对某一离心压缩机进行了非定常的数值模拟,并把其结果同实验测量数据和商用软件的结果进行了比较。结果表明两种非定常计算方法比定常计算结果更接近于实验测量值,定常的计算结果在某些测量平面上不能充足地预测出流场结构,本文所发展的时间倾斜算子的计算程序在总体上同实验测量结果吻合最好,应用其能很好地预测离心压缩机级的非定常流动。
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| 关 键 词： | 时间倾斜算子 非等栅距 离心压缩机 非定常 |
| 文章编号： | 0253-231X(2006)06-0953-03 |
| 修稿时间： | 2005年12月10 |
NUMERICAL SIMULATION OF THE UNSTEADY IMPELLER-DIFFUSER INTERACTION |
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| ZHOU Li,XI Guang,WANG Shang-Jin.NUMERICAL SIMULATION OF THE UNSTEADY IMPELLER-DIFFUSER INTERACTION[J].Journal of Engineering Thermophysics,2006,27(6):953-955. |
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| Authors: | ZHOU Li XI Guang WANG Shang-Jin |
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| Abstract: | A numerical method for the calculation of unsteady impeller/diffuser interaction in centrifugal compressor stage of arbitrary pitch ratio using time-inclined operator is presented. The viscous stress terms are not neglected in the viscous flow computation. The unsteady flowfield of a centrifugal compressor is simulated and compared with the experimental data and commercial software. The unsteady computation using the time-inclined operator is in best agreement with the experimental data. It shows the unsteady simulation using time-inclined method is able to capture the flow behavior quite successfully, and the program developed by the author can predict the flowfield in the centrifugal compressor accurately. |
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| Keywords: | time-inclined operator arbitrary pitch centrifugal compressor unsteady |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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