基于流场数值模拟的ADS靶件结构的设计优化  

Design Optimization of ADS Target Based on Numerical Simulations of Flow Field

作　　者：徐长江[1] 陈海燕[1] 

机构地区：[1]中国原子能科学研究院反应堆工程研究设计所,北京102413

出　　处：《原子能科学技术》2003年第2期111-115,共5页Atomic Energy Science and Technology

摘　　要：采用通用的计算流体力学(CFD)软件PHOENICS3 3和BFC计算网格生成技术,对加速器驱动次临界系统(ADS)靶件的流场进行数值模拟计算。结果表明:束窗下方导流板起引导流体沿束窗表面流动的作用,消除了束窗两侧下方较大的旋涡,对于改善束窗附近流体的流动结构、提高束窗表面及散裂靶的换热,效果显著。Numerical simulations of flow field are performed by using the PHOENICS 3.3 code for the proposed spallation target of accelerator-driven sub-critical system (ADS). The fluid motion in the target is axi-symmetric and is treated as a 2-D steady-state problem. A body-fitted coordinate system (BFC) is chosen and a two-dimensional mesh of the flow channel is generated. Results are presented for the ADS target under both upward and downward flow, and for the target with different window shapes and diffuser plates under downward flow.

关 键 词：数值模拟 ADS 靶件结构 加速器驱动次临界系统 散裂靶 流场 优化设计 计算机体力学软件 PHOENICS 3.3 

分 类 号：TL503.4[核科学技术—核技术及应用] TL334