The finite element method (FEM) has the potential of simulating plasma waves seamlessly from the core to the vacuum and antenna regions. We explored the possibility of using a versatile FEM solver package, COMSOL, for lower hybrid (LH) wave simulation. Special care was paid to boundary conditions to satisfy toroidal symmetry. The non-trivial issue of introducing hot plasma effects was addressed...

We present efficient domain decomposition solvers for a class of non-standard finite element methods (FEM). These methods utilize PDE-harmonic trial functions in every element of a polyhedral mesh, and use boundary element techniques locally in order to assemble the finite element stiffness matrices. For these reasons, the terms BEMbased FEM or Trefftz-FEM are sometimes used in connection with ...

A new method for the automated generation of eecient meshings for the nite element method (FEM) is presented and applied to a general problem from the eld of computer graphics | radiosity. Radiosity designates a class of algorithms which calculate the global ow of light in a virtual three-dimensional environment. The representation of radiosity computed by using an FEM approach can be regarded ...

In order to study the performance of rare earth PM brushless DC motor with skewed stator slots for lunar rover driving wheel at extreme temperatures of lunar surface rapidly and accurately, a computational method based on 2D FEM was proposed. The skewed motor was equivalent to a certain number of straight slot motor units in series and the mathematical expression of calculation accuracy was ded...

Graphene sheets are combined of Honeycombs lattice carbon-carbon bonds which have high natural frequencies, high strength, and high conductivity. Due to important applications of the graphene sheets particularly at higher frequencies, the study of their dynamic behavior is important in this frequency range. From Molecular Dynamics (MD) point of view as the dimensions of graphene sheet incline, ...

This paper deals with steady-state analysis of the magnetic field by using Finite Element Method (FEM) in salient poles synchronous motor with damper (SPSMD). The knowledge of electromechanical characteristics is very important in performance analysis of electrical machines, in general. In this paper it presents a methodology for numerical calculation of electromechanical quantities, starting w...

Methods A Finite Element Method (FEM) model is used to simulate industrial forming processes such as bending and deepdrawing. The model consists of multiple polymer and metal layers. The simulations are performed using the FEM programMARC, which is coupled to an external program. The coupling is required for the meshing of the model and other features. Results Bending and deep-draw simulations ...

Thermal engineering has long been left out of the concurrent engineering environment dominated by CAD (computer aided design) and FEM (finite element method) software. Current tools attempt to force the thermal design process into an environment primarily created to support structural analysis, which results in inappropriate thermal models. As a result, many thermal engineers either build model...

many earthquakes occur in iran every year and some of these earthquakes cause loss of life and property. consequently earthquake is one of challenging topics not only in iran but also in other active tectonic regions in the world. investigating the mechanism of earthquake as a natural disaster is the first and important step. to study earthquakes, different information such as geometry and beha...