耦合物理场中包层的流动传热和结构安全分析

工程热物理学报 , 2015, 36(6): 1339-1344.

耦合物理场中包层的流动传热和结构安全分析

李明健 ^1, , 陈龙 ^2, , 倪明玖 ^3, , 张年梅 ^4,

1.中国科学院大学物理学院,北京,100190

2.中国科学院大学物理学院,北京,100190

3.中国科学院大学物理学院,北京,100190

4.中国科学院大学物理学院,北京,100190

基金项目: 国家自然科学基金(No.51376175) 科技部ITER专项(No.2013GB114001)

关键词：多物理场 , 流道插件 , 传热 , 热应力

Heat Transfer and Structural Analysis of Blanket Module in Coupled Fields

Keywords： multi-physics fields , FCI , heat transfer , thermal stress

包层结构是国际热核聚变实验堆(ITER)中的重要组件,它的力学行为与磁热-流-固多物理场的耦合效应密切相关.本文采用有限体积法和有限元方法,分析了磁场强度和流体入口速度对包层内流动传热效应和包层中流道插件(FCI)结构安全性的影响.对磁场效应的分析表明,虽然MHD效应对流体存在不利影响,但磁场效应引起的M型速度分布改变了流体的传热形式,可以增加流体出口平均温度,提高热效率;同时,射流可降低第一壁最高温度,减小FCI最大结构热应力.此外,磁场效应还降低了FCI的热膨胀趋势,使得侧壁和Hartmann壁的法向位移有所减小.对于入口流速的分析表明,当速度增加时,PbLi流体出口平均温度降低,使其热效率降低,但流道向氦气中的热泄露有所减少,增加了出口输出热功率.当速度超过0.06 m/s时,出口热功率占中子生成热功率的比例将稳定在85％左右,同时考虑到第一壁和FCI的结构安全性,入口速度选择在0.06～0.10 m/s间可使包层达到良好的传热性能和安全性能.

参考文献

[1]	C.P.C. Wong;M. Abdou;M. Dagher;Y. Katoh;R.J. Kurtz;S. Malang;E.P. Marriott;BJ. Merrill;K. Messadek;N.B. Morley;M.E. Sawan;S. Sharafat;S. Smolentsev;D.K. Sze;S. Willms;A. Ying;M.Z. Youssef .An overview of the US DCLL ITER-TBM program[J].Fusion engineering and design,2010(7/9):1129-1132.
[2]	Sergey Smolentsev;Rene Moreau;Leo Buehler;Chiara Mistrangelo .MHD thermofluid issues of liquid-metal blankets: Phenomena and advances[J].Fusion engineering and design,2010(7/9):1196-1205.
[3]	Smolentsev, S.;Cuevas, S.;Beltrán, A. .Induced electric current-based formulation in computations of low magnetic Reynolds number magnetohydrodynamic flows[J].Journal of Computational Physics,2010(5):1558-1572.
[4]	I.V.Vitkovsky;M.M.Golovanov;V.A.Divavin .Neutronic, thermal-hydraulic and stress analysis of RF lithium cooled test blanket module for ITER[J].Fusion engineering and design,2000(0):703-707.
[5]	Shahram Sharafat;Aaron Aoyama;Neil Morley;Sergey Smolentsev;Y. Katoh;Brian Williams;Nasr Ghoniem .DEVELOPMENT STATUS OF A SiC-FOAM BASED FLOW CHANNEL INSERT FOR A U.S.-ITER DCLL TBM[J].Fusion science and technology: An international journal of the American Nuclear Society,2009(2):883-891.
[6]	S. Sharafat;A. Aoyama;N. Ghoniem;B. Williams;Y. Katoh .Heat Testing of a Prototypical SiC-Foam-Based Flow Channel Insert[J].IEEE Transactions on Plasma Science,2010(10 Pt.2):2993-2998.
[7]	A. Ying;M. Abdou;H. Zhang;R. Munipalli;M. Ulrickson;M. Sawan;B. Merrill .Progress on an integrated multi-physics simulation predictive capability for plasma chamber nuclear components[J].Fusion engineering and design,2010(7/9):1681-1688.
[8]	Songlin Liu;Qiang Jin;Weihua Wang;Ming Li .Updated thermal-mechanical analysis of DFLL-TBM for ITER[J].Fusion engineering and design,2011(9/11):2347-2351.
[9]	S. SMOLENTSEV;N. B. MORLEY;M. ABDOU .MAGNETOHYDRODYNAMIC AND THERMAL ISSUES OF THE SiC_f/SiC FLOW CHANNEL INSERT[J].Fusion science and technology: An international journal of the American Nuclear Society,2006(1):107-119.
[10]	Ni, MJ;Munipalli, R;Huang, P;Morley, NB;Abdou, MA .A current density conservative scheme for incompressible MHD flows at a low magnetic Reynolds number. Part II: On an arbitrary collocated mesh[J].Journal of Computational Physics,2007(1):205-228.
[11]	Ni, M.-J.;Li, J.-F. .A consistent and conservative scheme for incompressible MHD flows at a low magnetic Reynolds number. Part III: On a staggered mesh[J].Journal of Computational Physics,2012(2):281-298.

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