Numerical modelling of electromagnetic loads on fusion device structures

2nd International Conference on Mathematical Modeling in Physical Sciences 2013

物理学;数学

Bettini, Paolo^1,2 ; Palumbo, Maurizio Furno^1 ; Specogna, Ruben^3

Università di Padova, Dipartimento di Ingegneria Industriale (DII), 35131 Padova, Italy^1

Consorzio RFX, EURATOM-ENEA Association, 35127 Padova, Italy^2

Università di Udine, Dipartimento di Ingegneria Elettrica, Gestionale e Meccanica (DIEGM), 33100 Udine, Italy^3

关键词: Abnormal operation;    Detailed modeling;    Electromagnetic loads;    In-vessel components;    Magnetic confinement fusions;    Mechanical structures;    Open field lines;    Vertical displacement events;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/490/1/012078/pdf
DOI  :  10.1088/1742-6596/490/1/012078

来源: IOP

【 摘 要 】

In magnetic confinement fusion devices, during abnormal operations (disruptions) the plasma begins to move rapidly towards the vessel wall in a vertical displacement event (VDE), producing plasma current asymmetries, vessel eddy currents and open field line halo currents, each of which can exert potentially damaging forces upon the vessel and in-vessel components. This paper presents a methodology to estimate electromagnetic loads, on three-dimensional conductive structures surrounding the plasma, which arise from the interaction of halo-currents associated to VDEs with a magnetic field of the order of some Tesla needed for plasma confinement. Lorentz forces, calculated by complementary formulations, are used as constraining loads in a linear static structural analysis carried out on a detailed model of the mechanical structures of a representative machine.