| 超临界水通道内压降特性分析 | |
| 徐莉 ; 臧金光 ; 曾小康 ; 闫晓 ; XU Li ; ZANG Jin-guang ; ZENG Xiao-kang ; YAN Xiao | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 超临界水 积分效应 摩擦系数 物性效应 supercritical water integration effect frictional coefficient material property effect TL33 |
| 其他题名 | Analysis of Pressure Drop Characteristic in Supercritical Water Channel |
| 中文摘要 | 超临界水冷堆是以超临界水作为冷却剂和慢化剂的第4代核能系统之一,超临界水在拟临界区附近剧烈的物性变化会给通道内的压降特性带来影响。本文分析了超临界条件下重力压降、加速压降和摩擦压降的特点,并对具体的计算方式提供了一些建议和参考:重力压降需考虑沿程的积分效应;基于隐式PKN公式得到了显式PKN公式,用于求解等温流动摩擦系数;采用CFD数值分析工具比较了超临界条件下不同摩擦关系式的异同,发现Kirillov公式与CFD计算结果较为接近。; Supercritical water-colded reactor(SCWR)is one of the fourth generation nuclear energy systems with the supercritical water as the reactor coolant and moderator.The sharp variation of fluid property near the pseudo-critical point will have influence on the pressure drop characteristics of the flow channel.In this study,the pressure drops due to gravity,acceleration and friction were investigated under supercritical conditions and some suggestions were provided as reference.The flow path integration effect in gravity pressure drop needed to be accounted for.The explicit PKN formula was obtained based on the implicit PKN form which could be applied into isothermal flow.The comparison of different frictional pressure drop correlations with CFD numerical simulation results was made,and it is found that the Kirillov correlation is close to CFD calculation results. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/143137]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 徐莉,臧金光,曾小康,等. 超临界水通道内压降特性分析[J],2016, 2016. |
| APA | 徐莉.,臧金光.,曾小康.,闫晓.,XU Li.,...&YAN Xiao.(2016).超临界水通道内压降特性分析.. |
| MLA | 徐莉,et al."超临界水通道内压降特性分析".(2016). |
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