| 基于CSPM方法对二维管嘴出流的数值模拟 |
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| 引用本文： | 顾声龙,吴玉帅,解宏伟,袁晓伟.基于CSPM方法对二维管嘴出流的数值模拟[J].水利水电技术,2016,47(9):39-43. |
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| 作者姓名： | 顾声龙 吴玉帅 解宏伟 袁晓伟 |
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| 作者单位： | （青海大学水利电力学院，青海西宁810016） |
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| 摘 要： | 针对传统SPH方法计算效率低和计算精度差的问题,采用CSPM方法对二维管嘴出流问题进行了数值模拟,利用机群进行并行计算。结果表明:通过计算可得出一定精度的二维管嘴出流流态、出口断面流速、管嘴内压强分布以及水平喷射距离,并且证明了CSPM方法可以改善传统SPH方法数值不稳定性。所得成果可为同类研究提供参考。
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| 关 键 词： | SPH CSPM 出流 二维管嘴 数值模拟 并行计算 |
| 收稿时间： | 2015-10-29 |
CSPM method-based numerical simulation on outflow from 2-D pipe nozzle |
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| GU Shenglong,WU Yushuai,XIE Hongwei,YUAN Xiaowei.CSPM method-based numerical simulation on outflow from 2-D pipe nozzle[J].Water Resources and Hydropower Engineering,2016,47(9):39-43. |
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| Authors: | GU Shenglong WU Yushuai XIE Hongwei YUAN Xiaowei |
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| Affiliation: | （School of Water Resource and Eletric Power，Qinghai University，Xining810016，Qinghai, china） |
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| Abstract: | Aiming at the problem of lower calculation efficiency and poor calculation accuracy from the conventional calculation method—SPH （Smoothed Particle Hydrodynamics），a numerical simulation on the outflow from 2-D pipe nozzle is made with the method of SCPM （corrective smoothed particle method），and then the relevant parallel calculation is carried out by computer cluster. The result shows that the outflow pattern，flow velocity through the outlet section，pressure distribution inside of the nozzle and horizontal jetting distance with certain accuracies can be obtained through the calculation，thus it is verified that the method of CSPM can improve the instability of the numerical values got from the conventional SPH method. The result obtained herein can provide a reference for the similar study concerned. |
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| Keywords: | SPH CSPM outflow 2-D pipe nozzle numerical simulation parallel calculation |
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