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

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 different window shapes and diffuser plates under downward flow.