摘要
将基于Godunov方法的高阶离散格式应用于两流体模型的数值求解。采用数值标准题进行验证,比较分析了迎风、MUSCL、无振荡格式(ENO)、Ultra-Bee等格式的计算结果。结果表明:高阶离散格式很好地改善了数值粘性,明显优于迎风格式;ENO格式略优于MUSCL格式,但是ENO格式较复杂,计算代价大;Ultra-Bee格式能很好地模拟不连续处,但是对于连续处,需要足够多的网格,才能得到可接受的计算结果。
The high order schemes based on Godunov method are applied to the numerical method of two-fluid model, and a numerical benchmark verification is carried out. The computation results of upwind, MUSCL, ENd and Ultra-Bee are compared and analyzed. The results show that the high order schemes are better than the upwind scheme. ENd is slightly better than MUSCL, however MUSCL is simpler than ENd, and the computation cost of MUSCL is smaller than that of ENd. Ultra-Bee shows a good ability to capture the discontinuity region, but in the continuity region the mesh number should be large enough.
作者
张昊
杨燕华
Zhang Had Yang Yanhua(Shanghai Jiaotong University, Shanghai, 200240, China State Nuclear Power Software Development Center, National Energy Key Laboratory of Nuclear Power Sol, ware, Beijing, 100029, China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2017年第3期29-33,共5页
Nuclear Power Engineering
基金
重大专项核电关键设计软件评估课题(2016ZX06004002)
