高阶离散格式在两流体模型中的初步应用研究

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

基金项目:

重大专项核电关键设计软件评估课题(2016ZX06004002)

A Preliminary Study on Application of High Order Scheme in Two-Fluid Model

1. Shanghai Jiaotong University, Shanghai, 200240, China;
2. State Nuclear Power Software Development Center, National Energy Key Laboratory of Nuclear Power Software, Beijing, 100029, China

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。
- 两流体模型 /
- Godunov方法 /
- MUSCL格式 /
- Ultra-Bee格式 /
- 无振荡格式(ENO)
Abstract: 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,ENO and Ultra-Bee are compared and analyzed.The results show that the high order schemes are better than the upwind scheme.ENO is slightly better than MUSCL,however MUSCL is simpler than ENO,and the computation cost of MUSCL is smaller than that of ENO.Ultra-Bee shows a good ability to capture the discontinuity region,but in the continuity region the mesh number should be large enough.
- Two-fluid model /
- Godunov’s method /
- MUSCL scheme /
- Ultra-Bee scheme /
- Essentially non-oscillatory scheme（ENO）