핵융합로 디버터 다중충돌제트 냉각시스템의 형상변화가 열수력학적 특성에 미치는 영향

• Published in: 한국전산유체공학회지 Vol. 22; no. 1; pp. 26 - 36
• Main Authors: 정효연(H.Y. Jung), 김광용(K.Y. Kim)
• Format: Journal Article
• Language: Korean
• Published: 한국전산유체공학회 2017
• Subjects: 기계공학; 다중 충돌제트 냉각(Multiple Jet Impingement Cooling); 헬륨-냉각 디버터(He-cooled Divertor); 레이놀즈 평균 나비어-스톡스 방정식(Reynolds-Averaged Navier-Stokes Equations); 핵융합로(Nuclear Fusion Reactor)
• ISSN: 1598-6071; 1598-6071
• DOI: 10.6112/kscfe.2017.22.1.026

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 and angle , respectively, and that the pressure drop was decreased by up to 1.8% by the angle . KCI Citation Count: 0