CFD analysis of rewetting vertical nuclear fuel rod by dispersed fluid jet impingement

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• 作者：Ajoy Debbarma ; ^{ajoy@debbarma.me" class="auth_mail" title="E-mail the corresponding author} ; Krishna Murari Pandey ^{kmpandey2001@yahoo.com" class="auth_mail" title="E-mail the corresponding author} ; Deepak Sharma ^{deep.cool.u@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Gautam Choubey ^{gautam_dadaa@yahoo.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Rewetting temperature ; Wetting delay ; Dispersed fluid ; Jet impinging
• 刊名：Perspectives in Science
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：8
• 期：Complete
• 页码：110-112
• 全文大小：998 K

文摘

Numerical analysis of cooling assessment in hot vertical fuel rod is carryout using ANSYS 14.0 – CFX Solver. Rewetting is the process of re-establishment of coolants with hot surfaces. Numerical validation exercise carried out with number of turbulence and shear stress turbulence model fairly predict the experimental data and used for further investigation. In the present paper, dispersed fluid is simulating with CFX solver to investigate the flow boiling process in emergency cooling of vertical fuel rod. When coolants come in contact on the hot surface this may not initiated the wetting patch. However, this paper introduces the unique jet impingement direction to remove the heat from the hot surface. In this report, the rewetting temperature and wetting delay also described during in progress of wetting front movement in hot vertical rod.