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- This paper deals with experimental and numerical computation analysis of the critical heat flux (CHF) occurrence at the conditions of subcooled boiling flow in rod bundles with grid spacers. 本文采用实验和数值计算分析相结合的方法,研究了带定位格架棒束通道内过冷流动沸腾工况下临界热流密度(CHF)发生情况。
- Experimental Research on Subcooled Boiling Flow Instability of Natural Circulation 自然循环过冷沸腾流动不稳定性实验研究
- subcooled boiling flow 过冷流动沸腾
- Three kinds of possible flow modes were observed, namely, subcooled boiling oscillation under lower heating flux, stable flow and heat transfer region and dry-out mode under higher heating flux. 在低功率区,过冷沸腾和携带机制造成启动过程的两相流振荡;进入稳定工况区后,系统具有自调适能力,能够维持恒定的循环质量流率;
- With the re-defined diameter, the subcooled boiling CHF model is modified based on the liquid sublayer dryout model, and the annular flow CHF model is also modified based on liquid film dryout model. 采用重新定义后的当量直径对圆管过冷沸腾液相底层烧干机理模型和环状流液膜烧干模型进行修正。
- Experimental research was conducted in the view of subcooled boiling high frequency oscillations. 对自然循环过冷沸腾高频脉动进行了实验研究。
- The critical heat flux (CHF) of subcooled boiling is theoretically predicted by using the microlayer model. 本文利用微液层模型对过冷沸腾的临界热流密度(CHF)进行了理论预测。
- Several models for calculating the initial points of subcooled boiling were introduced. 介绍了国外几个典型的计算流动欠热沸腾起始点的模型。
- An experimental investigation was conducted to explore fundamental characteristics of subcooled boiling in mini-tubes. 摘要通过系统地可视化实验,观察了小管径管内沸腾。
- These can lay good basis for study and application on subcooled boiling in natural circulation in future. 此研究结果为今后研究和应用自然循环的欠热沸腾奠定了基础。
- The subcooled boiling states were visualized by Shadowgraph visualization technique and the pressure oscillation was measured by the pressure sensor. 在过冷态超流氦沸腾中,运用可视化方法对不同过冷度下的沸腾过程进行了观测,同时运用压力传感器详细研究了沸腾过程中的压力振荡。
- He felt himself pressing onward with the rushing, boiling flow of the floodwaters as his heart filled with holy pride. 他感到自己正随着一泻而下的滚滚洪流向前挺进,他心里充满了神圣的豪情。
- The experimental results for the initial point of net vapor generation in up-flow subcooled boiling in an internally-heated annulus are given. 给出了在低压条件下,竖直的环形通道内,流动欠热沸腾过程中净蒸汽产生起始点的实验结果。
- The calculation of the void fraction in subcooled boiling is different from that in saturated boiling, it is characterized thermal in equilibrium. 欠热沸腾下的空泡份额计算不同于饱和沸腾,具有热不平衡特点。
- The results indicate that the fuzzy mathematics method can be used to more accurately analyze ONB data for subcooled boiling in natural circulation. 结果表明,模糊数学的应用使自然循环欠热沸腾起始点分析得到一种符合实际和较为准确的描述,该方法是一种有前途的可开发数学方法。
- This paper presented an experimental investigation to subcooled boiling heat transfer on the declining downward surface. 对大气压力下倾斜下表面的过冷池沸腾换热进行了实验研究。
- Studies on visualization of the behavior,of subcooled boiling bubbles,in narrow rectangular slit shaped channels,have been conducted with the help of a high-speed digital camera. 采用高速摄像仪,对矩形窄缝流道内过冷沸腾时的汽泡行为进行了可视化实验研究。
- The results showed: (1) Under large perturbation such as accident conditions the void reactivity feedback caused by subcooled boiling is considerable, and, bigger difference exists between various subcooled boiling models. 结果表明:(1)在大扰动(如事故工况)下,过冷沸腾引起的空泡反应性反馈对系统稳定性影响显著,不同过冷沸腾模型之间存在较大差别;
- By dynamic data acquisition system (DDAS) and through time series analysis, the subcooled boiling thermoacoustic effect in two-phase tube is investigated and an AR model is established. 摘要通过对欠热沸腾两相热声效应的实验研究及声压波动时序的动态数据采集,运用时间序列分析方法进行实验建模,建立近似AR时序模型。
- The kettle was boiling away merrily on the fire. 壶水烧开了咕嘟咕嘟地滚泡。