A space-time discretization for an electromagnetic problem with moving non-magnetic conductor
نویسندگان
چکیده
This paper deals with a space-time discretization scheme for an eddy current problem in multi-component domain moving non-magnetic conductor. We incorporate the Coulomb gauge to formulation, then propose fully-discrete finite element combined backward Euler's method find approximation of solution variational system. The convergence is proved, and error estimates first-order Lagrangian elements are established. Under appropriate assumptions on weak given initial data, we show optimal rate space suboptimal time discretization. Some numerical experiments performed support obtained theoretical results.
منابع مشابه
A Fractional Space-time Optimal Control Problem: Analysis and Discretization∗
We study a linear-quadratic optimal control problem involving a parabolic equation with fractional diffusion and Caputo fractional time derivative of orders s ∈ (0, 1) and γ ∈ (0, 1], respectively. The spatial fractional diffusion is realized as the Dirichlet-to-Neumann map for a nonuniformly elliptic operator. Thus, we consider an equivalent formulation with a quasi-stationary elliptic problem...
متن کاملA study of a Stefan problem governed with space–time fractional derivatives
This paper presents a fractional mathematical model of a one-dimensional phase-change problem (Stefan problem) with a variable latent-heat (a power function of position). This model includes space–time fractional derivatives in the Caputo sense and time-dependent surface-heat flux. An approximate solution of this model is obtained by using the optimal homotopy asymptotic method to find the solu...
متن کاملElectromagnetic Scattering from a Perfect Electromagnetic Conductor Cylinder Buried in a Dielectric Half-space
An analytical solution is presented for the electromagnetic scattering from a perfect electromagnetic conducting circular cylinder, embedded in the dielectric half-space. The solution utilizes the spectral (plane wave) representations of the fields and accounts for all the multiple interactions between the buried circular cylinder and the dielectric interface separating the two half spaces.
متن کاملAdaptive Time–Space Discretization for Combustion Problems
We present a self–adaptive finite element method to solve combustion problems in 1D, 2D, and 3D. An implicit time integrator of Rosenbrock type is coupled with a multilevel approach in space. A posteriori error estimates are obtained by constructing locally higher order solutions involving all variables of the problem. Adaptive strategies such as step size control, spatial refinement and coarse...
متن کاملa new type-ii fuzzy logic based controller for non-linear dynamical systems with application to 3-psp parallel robot
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied Numerical Mathematics
سال: 2022
ISSN: ['1873-5460', '0168-9274']
DOI: https://doi.org/10.1016/j.apnum.2021.12.009