| Popis: |
It is often of great interest in geomechanical analysis to model localized phenomena, such as strain concentrations along failure planes or hydraulic gradient concentrations near discontinuities and exit points. Focus in recent years on massively parallel finite element codes with adaptive meshing algorithms, have left many previously developed libraries for adapting quadrilateral meshes difficult to find, and often unsupported. While large, parallel simulations are of great interest to researchers, an acceptable modeling outcome for many practical engineering problems can often be obtained using meshes with more modest numbers of elements (e.g. < 105), removing the need for use of large parallel libraries. This paper describes a software library written in modern Fortran for adaptive meshing of structured meshes. The library consists of less than 1,000 lines of code and is based on 4 Fortran functions making it quick to learn as an educational and research tool, and easy to implement in existing codes. The library is demonstrated through an example seepage problem of a point source (Poisson problem). |
