Direct simulation of 3-D MHD(magnetohydrodynamics) flows in liquid metal fusion blanket with flow channel insert(FCI) has been conducted.Two kinds of pressure equilibrium slot (PES) in FCI,which are used to balance th...Direct simulation of 3-D MHD(magnetohydrodynamics) flows in liquid metal fusion blanket with flow channel insert(FCI) has been conducted.Two kinds of pressure equilibrium slot (PES) in FCI,which are used to balance the pressure difference between the inside and outside of FCI,are considered with a slot in Hartmann wall or a slot in side wall,respectively.The velocity and pressure distribution of FCI made of SiC/SiC_f are numerically studied to illustrate the 3-D MHD flow effects,which clearly show that the flows in fusion blanket with FCI are typical three-dimensional issues and the assumption of 2-D fully developed flows is not the real physical problem of the MHD flows in dual-coolant liquid metal fusion blanket.The optimum opening location of PES has been analyzed based on the 3-D pressure and velocity distributions.展开更多
Based on an adaptive mesh refinement(AMR)technique,a multi-fluid MHD(magnetohydrodynamics)flow is directly simulated by using volume of fluid(VOF)method to capture the interface and charge conservation(consistent and ...Based on an adaptive mesh refinement(AMR)technique,a multi-fluid MHD(magnetohydrodynamics)flow is directly simulated by using volume of fluid(VOF)method to capture the interface and charge conservation(consistent and conservative)scheme to calculate the Lorentz force.Effects of magnetic field on bubble rising in a liquid are conducted,in which the magnetic strength and magnetic directions decide the trajectory and the velocity of rising bubble. The history of kinetic distribution and trajectory is illustrated to describe the effect of the magnetic field on bubble driven flows.展开更多
基金supported by National Natural Science Foundation of China with grant Nos.10872212,50936006National Magnetic Confinement Fusion Science Program in China with grant No.2009GB10401
文摘Direct simulation of 3-D MHD(magnetohydrodynamics) flows in liquid metal fusion blanket with flow channel insert(FCI) has been conducted.Two kinds of pressure equilibrium slot (PES) in FCI,which are used to balance the pressure difference between the inside and outside of FCI,are considered with a slot in Hartmann wall or a slot in side wall,respectively.The velocity and pressure distribution of FCI made of SiC/SiC_f are numerically studied to illustrate the 3-D MHD flow effects,which clearly show that the flows in fusion blanket with FCI are typical three-dimensional issues and the assumption of 2-D fully developed flows is not the real physical problem of the MHD flows in dual-coolant liquid metal fusion blanket.The optimum opening location of PES has been analyzed based on the 3-D pressure and velocity distributions.
基金Item Sponsored by National Natural Science Foundation of China[No.1112521250936006]ITER Project[No.2009GB 104001]
文摘Based on an adaptive mesh refinement(AMR)technique,a multi-fluid MHD(magnetohydrodynamics)flow is directly simulated by using volume of fluid(VOF)method to capture the interface and charge conservation(consistent and conservative)scheme to calculate the Lorentz force.Effects of magnetic field on bubble rising in a liquid are conducted,in which the magnetic strength and magnetic directions decide the trajectory and the velocity of rising bubble. The history of kinetic distribution and trajectory is illustrated to describe the effect of the magnetic field on bubble driven flows.
