运动条件下并联矩形双通道流动不稳定性实验研究

发布时间：2018-06-10 04:37

  本文选题：矩形并联双通道 + 流动不稳定　； 参考：《核动力工程》2016年04期

【摘要】：在P为3~8 MPa的压力范围内,以截面尺寸为50 mm×2 mm的矩形并联双通道为实验本体,开展静止条件和倾斜、起伏、摇摆等运动条件下的密度波流动不稳定性实验。在时域和频域内,分析运动条件对流动失稳现象的影响。通过对比静止条件下的实验结果,分析运动条件对流动不稳定边界的影响。最后基于实验数据,拟合了流动不稳定边界的经验关系式。
[Abstract]:In the pressure range of P 3~8 MPa, a rectangular parallel double channel with a cross section size of 50 mm x 2 mm is used as the experimental body to carry out the density wave flow instability experiment under the conditions of static condition and tilt, fluctuation and swaying. In the time and frequency domain, the effect of the motion condition on the instability of the convective motion is analyzed. The experimental results are used to analyze the influence of the moving condition on the flow instability boundary. Finally, based on the experimental data, the empirical relation of the flow instability boundary is fitted.
【作者单位】： 中国核动力研究设计院中核核反应堆热工水力技术重点实验室;
【基金】：国家自然科学基金(11475161) 四川省青年基金(2014JQ0029)
【分类号】：U661.7
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本文编号：2001994