【摘要】 本文在宽广的参数范围内，对垂直并联管内高压汽水两相流压力降型脉动特性进行了试验研究，得出了系统参数对脉动起始点、周期和振幅的影响。根据两相流的均相模型，对压力降型脉动的周期和振幅进行了数值计算。此方法考虑了系统非线性的影响，与试验结果符合较好。更多还原

【Abstract】 In the range of wide parameters, the pressure drop type of high pressure steam water two-phase flow instability in vertical upward parallel pipes with inner diameter of 12 mm was studied experimentally. The effects of system parameters on the oscillation thresh old, period and amplitude were obtained. Based on the homogeneous model, the numerical computation for the oscillation period and amplitude of pressure drop type instability was conducted. The predictions of the model were in good agreement with the experimental results.更多还原