Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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GEOMETRICAL EFFECTS ON THERMAL-HYDRAULIC PERFORMANCE OF A MULTIPLE JET IMPINGEMENT COOLING SYSTEM IN A DIVERTOR OF NUCLEAR FUSION REACTOR

핵융합로 디버터 다중충돌제트 냉각시스템의 형상변화가 열수력학적 특성에 미치는 영향

  • Jung, H.Y. (Dept. of Mechanical Engineering, Graduate School, Inha University) ;
  • Kim, K.Y. (Dept. of Mechanical Engineering, Inha University)
  • 정효연 (인하대학교 대학원 기계공학과) ;
  • 김광용 (인하대학교 기계공학부)
  • Received : 2016.11.09
  • Accepted : 2017.01.04
  • Published : 2017.03.31
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Abstract

A numerical study has been performed to evaluate thermal-hydraulic performance of a finger type cooling module with multiple-jet impingement in a divertor of nuclear fusion reactor. To analyze conjugate heat transfer in both solid and fluid domains, numerical analysis of the flow using three-dimensional Reynolds-averaged Navier-Stokes equations has been performed with shear stress transport turbulence model. The computational domain for the cooling module consisted of a single fluid domain and three solid domains; tile, thimble, and cartridge. The numerical results for the temperature variation on the tile were validated in comparison with experimental data under the same conditions. A parametric study was performed with four geometric parameters, i.e., angles between x-axis and centerlines of hole 1, 2, 3 and 4. The results indicate that the heat transfer rate was increased by 2.7% and 0.7% by the angle ${\theta}_1$ and angle ${\theta}_2$, respectively, and that the pressure drop was decreased by up to 1.8% by the angle ${\theta}_3$.

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References

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