Implementation of a General Mesh Refinement Technique

نویسندگان

  • Paul Hammon
  • Petr Krysl
چکیده

1 Undergraduate student, University of California, San Diego, CA, U.S.A. 2 Professor, University of California, San Diego, U.S.A Abstract In this paper, we describe a pilot implementation of a hierarchical adaptive mesh refinement technique. While the focus is on the implementation in one-dimensional problems, the methodology is generic in nature in that it is equally applicable to the construction of adaptive approximations in multi-dimensional domains, as is also being demonstrated on some examples of steady-state heat conduction and other potential-like equations (EEG).

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Thickness-based adaptive mesh refinement methods for multi-phase flow simulations with thin regions

a r t i c l e i n f o a b s t r a c t Adaptive mesh refinement Digital topology Volume-of-fluid Multi-phase simulation In numerical simulations of multi-scale, multi-phase flows, grid refinement is required to resolve regions with small scales. A notable example is liquid-jet atomization and subsequent droplet dynamics. It is essential to characterize the detailed flow physics with variable len...

متن کامل

Effective adaptation technique for hexahedral mesh

This paper describes easy and effective adaptive technique for Finite Element Method. Utilize Hex-R which refine an existing mesh. Refined mesh keeps original coarse mesh topologically. Finally capability of adaptive method using Hex-R is mentioned. Introduction Adaptive technique is one of the most important issues in order to realize effective FEM analysis process. Many works for adaptive mes...

متن کامل

Interface Conditions for Wave Propagation Through Mesh Refinement Boundaries

We study the propagation of waves across fixed mesh refinement boundaries in linear and nonlinear model equations in 1–D and 2–D, and in the 3–D Einstein equations of general relativity. We demonstrate that using linear interpolation to set the data in guard cells leads to the production of reflected waves at the refinement boundaries. Implementing quadratic interpolation to fill the guard cell...

متن کامل

N-Body Code with Adaptive Mesh Refinement

We have developed a simulation code with the techniques which enhance both spatial and time resolution of the PM method for which the spatial resolution is restricted by the spacing of structured mesh. The adaptive mesh refinement (AMR) technique subdivides the cells which satisfy the refinement criterion recursively. The hierarchical meshes are maintained by the special data structure and are ...

متن کامل

Algorithms and Data Structures for Handling a Fully Flexible Refinement Approach in Mesh Generation

This paper presents new algorithms and data structures required for the generation of grids based on mixed element trees and using flexible refinement approach. Mixed elements trees is an extension of modified octrees that uses several well-shaped primitives such as cuboids, prisms, pyramids and tetrahedra as internal nodes. A flexible refinement approach fits the object geometry and fulfills t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003