Second-order semi-implicit projection methods for micromagnetics simulations
نویسندگان
چکیده
منابع مشابه
High-Order Semi-Implicit Schemes for Unsteady Compressible Flow Simulations
Direct numerical simulation of stability and transition of compressible boundary layers requires high-orderaccurate and computationally ef cient numerical methods to resolve a wide range of timeand length scales associated with wave elds in the boundary layers. Explicit methods have been used mainly in such simulations to advance the compressible Navier–Stokes equations in time. However, the...
متن کاملA second-order semi-implicit δfδf method for hybrid simulation
A second-order accurate semi-implicit Lorentz force ions, fluid electrons df hybrid model has been developed using a ‘‘current closure’’ scheme. The model assumes quasi-neutrality and is fully electromagnetic. The implicit field solver improves numerical accuracy by separating the equilibrium terms in the presence of small perturbations. The equilibrium part of the generalized Ohm’s law is solv...
متن کاملImproved Gauss–Seidel Projection Method for Micromagnetics Simulations
The Gauss–Seidel projection method (GSPM) (Wang et al., J. Comp. Phys., vol. 171, pp. 357–372, 2001) is a simple, efficient, and unconditionally stable method for micromagnetics simulations. We present an improvement of the method for small values of the damping parameter. With the new method, we are able to carry out fully resolved simulations of the magnetization reversal process in the prese...
متن کاملEnhanced Second-order Implicit Constraint Enforcement for Dynamic Simulations
This paper proposes a second-order implicit constraint enforcement method which yields enhanced controllability compared to a first-order implicit constraints enforcement method. Although the proposed method requires solving a linear system twice, it yields superior accuracy from the constraints error perspective and guarantees the precise and natural movement of objects, in contrast to the fir...
متن کاملA Framework for the Analysis of Second Order Projection Methods∗
In this paper we present a common framework for projection methods for the solution of incompressible Navier-Stokes systems. We address through both analysis and numerical experiments how the pressure update effects the temporal order and stability, and explain some observations that have been reported in the literature.
متن کاملذخیره 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: Journal of Computational Physics
سال: 2020
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2019.109104