10MW高温气冷堆90°弯头内氦气流动特性分析  

Characteristics of Helium Gas Flowing through 90° Elbow in HTR-10

作　　者：王世明[1] 封贝贝[1] 任成[1] 杨星团[1] 姜胜耀[1] 

机构地区：[1]清华大学核能与新能源技术研究院先进反应堆工程与安全教育部重点实验室,北京100084

出　　处：《原子能科学技术》2015年第4期634-639,共6页Atomic Energy Science and Technology

基　　金：高等学校博士学科点专项科研基金资助项目(20130002120015);摩擦学国家重点实验室开放基金资助项目(SKLTKF12B16)

摘　　要：为了在10MW高温气冷堆中引入弯头传感器,通过实验和数值模拟的方法对90°弯头内流体的流动特性进行了研究,以实验获得的弯头内弧面和外弧面上的压力分布数据来对CFD模型计算的可信性进行评估,并应用验证后的CFD模型对高温气冷堆蒸汽发生器内90°弯头处氦气的流动特性进行数值模拟。通过对比实验数据和CFD模拟结果发现,实验结果与数值模拟结果基本趋于一致,90°弯头内、外弧面的压力呈现明显的不均匀分布现象,在弯曲角度α=30°-50°之间,内、外弧面的压力差达到最大值并持续保持一段位置,k-ω模型能用于预测10 MW高温气冷堆蒸汽发生器内90°弯头处氦气的流动特性。In order to apply the elbow sensor in 10 MW High Temperature Gas‐cooled Reactor （HTR‐10） ,both of experimental measurements and numerical simulation were utilized to research the fluid flow characteristics in a 90° elbow pipe .The experimental data about the pressure distribution on the intrados and extrados of the elbow were used for validating the credibility of the computational approach and then the helium flow characteristics in the 90° elbow of the steam generator of HTR‐10 were simulated with the verified CFD model .Both measured and predicted wall static pressure distributions of 90° elbow are in satisfactory agreement .The pressure on the intrados and extrados performs an asymmetrical distribution according to the numerical and experimental results ,and the pressure difference approaches its maximum on the cross sections of elbow arch betw een angles α= 30°‐50° . T he main flow characteristics in the elbow of HTR‐10 can be successfully captured using CFD method .

关 键 词：10 MW高温气冷堆 90°弯头 数值模拟 氦气 

分 类 号：TL334[核科学技术—核技术及应用]