"数值模拟结果及验证分析 4.6.1 模拟可靠性分析 将非定常模拟的" ~ 중 영어 번역
중국어
数值模拟结果及验证分析
4.6.1 模拟可靠性分析
将非定常模拟的结果与瞬态试验得到的流量和出口含气率曲线规律进行对比，可以发现自吸时间均为30s左右，且均在20s左右进入自吸突变阶段，流量和出口含气率的变化规律也基本一致，出口含气率在数值上略低于模拟结果，主要原因是模拟的理想状态条件的设置与现场试验的现实条件之间形成的无法避免的细微差别，如密封性等因素，且由于出口含气率界面的监测与试验台出口科式流量计的安装位置不同，故后期出口含气率的模拟与试验存在时间先后的差别。以上所述差别均能在误差范围内得到合理解释，所以模拟可靠。
영어
Numerical simulation results and verification analysis
4.6.1 Simulated Reliability Analysis
By comparing the results of unsteady simulation with those of transient test, it can be found that the self-priming time is about 30 seconds, and all of them enter the self-priming catastrophe stage in about 20 seconds. The variation of flow rate and outlet void fraction is basically the same, and the outlet void fraction is slightly lower than the simulation results. The main reason is the unavoidable slight difference between the setting of simulated ideal state conditions and the actual conditions of field tests, such as sealing and other factors. Because the monitoring of outlet void fraction interface is different from the installation position of the test bed outlet conventional flowmeter, the simulation and test of outlet void fraction exist in the later stage. Differences in order. The differences mentioned above can be reasonably explained within the error range, so the simulation is reliable.