供取料条件对分离性能影响的数值研究
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- 英文论文题名：Numerical analysis of the influence of the feed and extraction conditions on separation performance
- 论文作者：徐璐 ; 曾实 ; 陈念念 ; 姜宏民
- 英文论文作者：XU Lu ; ZENG Shi ; CHEN Nian-nian ; JIANG Hong-min ; Department of Engineering Physics ; Tsinghua University ; Research Institute of Physics and Chemical Engineering of Nuclear Industry
- 年：2015
- 作者机构：清华大学工程物理系;核工业理化工程研究院;
- 论文关键词：供取料条件 ; 分离性能 ; 数值研究
- 英文论文关键词：Feed and extraction conditions ; Separation performance ; Numerical analysis
- 会议召开时间：2015-09-21
- 会议录名称：中国核科学技术进展报告（第四卷）——中国核学会2015年学术年会论文集第4册（同位素分离分卷）
- 语种：中文
- 分类号：TH69
- 学会代码：EGVD
- 会议名称：中国核学会2015年学术年会
- 会议地点：中国四川绵阳
- 主办单位：中国核学会
- 学会名称：中国核学会
- 页数：7
- 文件大小：329k
- 原文格式：O
- 会议级别：全国
摘要
供取料驱动对旋转机械分离性能有重要的影响,需要对其进行详细研究。采用有限差分法对非线性NavierStokes方程组进行离散,使用循环中点求积下降Newton法求解非线性代数方程组,得到了其内部流场分布。获得流场结果后,其分离性能通过对非线性丰度方程组进行数值求解获得。研究供取料条件对分离性能的影响,发现供料条件存在着最佳的供料位置与角度,同时供料宽度与角向速度扰动量的对分离性能的影响密切相关,需要综合考虑。对取料条件的研究则表明精取料器位置靠近内边界可以得到更高的分离功率,而贫取料器在侧壁附近存在着最佳取料器径向位置,同时取料口宽度对分离功率的影响较小,精取料口宽度的影响可忽略。
The feed and extraction drive have important influence on the separation performance of a rotating cylinder and need to be labored.Finite difference method was applied to discrete nonlinear Navier-Stokes equations,using a mid-point mensuration with Newton-Raphson scheme to solve the nonlinear algebra equations and the flow field was obtained.Then the separation performance was obtained by solving the nonlinear concentration equations with a numerical method.The influence of feed and extraction conditions on the separation performance is studied,and it is found that optimum feed position and axial velocity disturbance exists for the given model.The influence of feed width and angular velocity disturbance has close correlation and need to be considered synthetically.Study on the extraction conditions shows that larger separation power was obtained when the radial position of product scoop was closer to the inner boundary and an optimum radial position of waste scoop was found near the side wall.The width of scoops has little influence on the separation performance and influence of width of product scoop can even be ignored.
The feed and extraction drive have important influence on the separation performance of a rotating cylinder and need to be labored.Finite difference method was applied to discrete nonlinear Navier-Stokes equations,using a mid-point mensuration with Newton-Raphson scheme to solve the nonlinear algebra equations and the flow field was obtained.Then the separation performance was obtained by solving the nonlinear concentration equations with a numerical method.The influence of feed and extraction conditions on the separation performance is studied,and it is found that optimum feed position and axial velocity disturbance exists for the given model.The influence of feed width and angular velocity disturbance has close correlation and need to be considered synthetically.Study on the extraction conditions shows that larger separation power was obtained when the radial position of product scoop was closer to the inner boundary and an optimum radial position of waste scoop was found near the side wall.The width of scoops has little influence on the separation performance and influence of width of product scoop can even be ignored.
引文
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[5]刘冰,姜东君,曾实.供料条件对气体离心机分离性能影响的数值研究[J].原子能科学技术,2012,46(10):1153-1157.
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[2]陈伟波.气体离心机供料射流及其驱动环流的数值模拟[D].北京:清华大学,1994.
[3]FU Ruifeng,CHEN Weibo,YING Chuntong.Numerical study of the feed flow and its influence on the separation efficiency of a gas centrifuge[J].Tsinghua Science and Technology,1996,1(1)161-65.
[4]ZHOU Chenlong,DING Baogeng,WANG Ying.3D numerical analysis of feed flow field for gas separation[C].The 9th International Workshop on Separation Phenomena in Liquids and Gases.Beijing:Tsinghua Universitj Press,2006:36-39.
[5]刘冰,姜东君,曾实.供料条件对气体离心机分离性能影响的数值研究[J].原子能科学技术,2012,46(10):1153-1157.
[6]Olander D R.The theory of uranium enrichment by the gas centrifuge[J].,Progress in Nuclear Energy,1981,i(1):1-33.