Meshless Difference Methods with Adaptation and High Resolution

نویسندگان

  • Qun Lin
  • J. G. Rokne
چکیده

Partial differential equations for domains with moving boundaries and moving interfaces are solved numerically using meshless finite difference schemes. The advantage of the approach is that it is easy to add nodes where there is a requirement of higher precision and delete nodes where the precision requirements are less stringent. TVD and ENO schemes are considered in this context and some numerical examples are computed showing applications of the methods.

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

A method based on the meshless approach for singularly perturbed differential-difference equations with Boundary layers

In this paper, an effective procedure based on coordinate stretching and radial basis functions (RBFs) collocation method is applied to solve singularly perturbed differential-difference equations with layer behavior. It is well known that if the boundary layer is very small, for good resolution of the numerical solution at least one of the collocation points must lie in the boundary layer. In ...

متن کامل

On Some Aspects of a Posteriori Error Estimation in the Multipoint Meshless Fdm

The higher order multipoint meshless finite difference method (MFDM) is considered in this paper. The new approach is based on arbitrary irregular meshes, the moving weighted least squares approximation and the local or various global formulations of boundary value problems. A priori and a posteriori errors constitute the important part of engineering problem analysis. The paper is focused on a...

متن کامل

Modeling heat transfer using adaptive finite methods

the web site http:llwww.unlv.edulResearch CentedNCACM. method has its merits and deficiencies. Additional infomation can be found on element and meshless methods for several heat transfer test problems. Each finite element scheme that employs h-adaptation are compared with boundary schemes that are especially promising. In this study, solutions obtained using a (handlor p-adaptation), boundary ...

متن کامل

Diagnostic Accuracy of Digitized Images Using Different Resolution Settings of Digital Camera in Detection of Proximal Caries

Objective: When none of digital systems and scanners is accessible and it is essential to have digitized images of conventional radiographs, digital cameras can be used. The Aim of this study was to investigate whether digital images obtained by different resolutions of a digital camera are matched to the original radiographs in evaluation of caries. Methods: In this diagnostic accuracy in v...

متن کامل

The smoothed particle hydrodynamics method for solving generalized variable coefficient Schrodinger equation and Schrodinger-Boussinesq system

A meshless numerical technique is proposed for solving the generalized variable coefficient Schrodinger equation and Schrodinger-Boussinesq system with electromagnetic fields. The employed meshless technique is based on a generalized smoothed particle hydrodynamics (SPH) approach. The spatial direction has been discretized with the generalized SPH technique. Thus, we obtain a system of ordinary...

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 2008