Molten salt self-cooled solid first wall and blanket design based on advanced ferritic steel

Direct numerical simulation of MHD heat transfer in high Reynolds number turbulent channel flows for Prandtl number of 25

“…In this study, for the first time, we perform a high-accuracy DNS of an MHD turbulent channel flow with high-Pr (=25) heat transfer. We report the MHD turbulent heat transfer characteristics and demonstrate that heat transfer degradation corresponded to the typical design conditions such as the Reynolds number, Hartmann number, and Prandlt number for molten salt blankets [8]. The obtained database is of considerable importance for the quantitative and qualitative studies of MHD turbulent heat transfer models for the blanket design of a fusion reactor.…”

Discussion on heat transfer correlation in turbulent channel flow imposed wall-normal magnetic field

“…6, Reynolds number dependency on heat transfer degradation cannot be found, even though in the narrow range of Re b (= 7400-20,000). More importantly, the typical design parameters for molten salt blankets was Ha = 20, Re b = 12,000 [13]. Therefore, the new correlation (9) can be useful for the assessments of MHD heat transfer degradation in the blanket design utilizing molten salt coolants.…”

DNS of turbulent heat transfer under a uniform magnetic field at high Reynolds number

“…The mean velocity of liquid coolant in a reactor is strongly influenced by magnetic field, and hence it becomes necessary to understand the behavior of turbulent MHD flow under a magnetic field perpendicular to the flow direction. Furthermore, because the flow characteristics of coolant at high Reynolds number [2] are assumed to be different from the usual turbulent MHD flow, it becomes necessary to investigate high-Reynolds number flow under a magnetic field for the design of actual working system.…”