Meshgen-2D, Last Version: 2.01, June 2005
Meshgen-2D is not distributed any longer and was fully replaced in 2008 with MESHGEN Plus.
Meshgen-2D is a Windows application for FEM data pre-processing and generating triangular meshes. It can be used as a stand-alone application or with programs Hydrus-2D and COCHEM Flow.
Main Features
- Meshgen-2D can be used to design two-dimensional computational domains of arbitrary shapes bounded by poly-lines, arcs and splines. The domain can have any number of holes, internal curves or internal points. All geometrical objects can be entered and edited graphically or numerically and coordinates of very complicated shapes can be imported from other programs (by using a text file). User interface is intuitive and easy to use.
- The program enables automatic generation of FE-meshes based on Delaunay triangulation. The mesh can be refined in any node or along any curve and meshes can be very fine (the mesh size is virtually unlimited - more than 2,000,000,000 triangles). The program has a number of advanced options that enable to create very special meshes (for example a combination of very coarse and very fine mesh, stretched meshes, etc.) But mostly only one or several few commands are enough to get required simple FEM mesh. All important information about the mesh can be exported to a text file in described simple format.
Advanced Options
- Mesh stretching. This option enables to define the degree of mesh anisotropy in a general direction. The mesh is then deformed in the given direction, which can be desirable for problems when, for example, a different spatial step is required in the X-direction and a different one in the Y-direction.
- Support of periodical boundary conditions. The periodical condition is often used in fluid mechanics to simulate some "infinite" problems like flow through a turbine blade cascade etc. It can be defined on two parts of a boundary curve that are exactly the same and differ each from other just by a vector of translation. This periodical condition requires a special mesh points distribution along boundaries - each point must have a corresponding "periodical point" and their positions differ by the vector of periodical translation. If the user specifies periodical conditions, program automatically checks and corrects the mesh to satisfy these periodical conditions.
- Mesh smoothing parameters. There are several options to optimize mesh smoothness. In most cases predefined values of these parameters give good results so it is not necessary to change them.
- Mesh generation step by step. This option enables to generate FEM mesh step by step and get some special results. For example it is possible to get the minimum triangular mesh for given distribution of points on boundaries, etc.
Main Features in version 2.xx
- Now it is possible to generate FEM meshes of virtually unlimited sizes (more the 2,000,000,000 triangles).
- The algorithm is faster and more stable
- Improved graphical selection of objects
- Double click on an object opens a dialog with its properties
- Functions "Undo" and "Redo" are available also for editing distribution of boundary points and FE-mesh generation
- Many other (less important) changes
Video Tutorials
Pricing and Ordering Information
Meshgen-2D is a commercial program that was distributed in 1997-2005 with Hydrus-2D or as a stand-alone application and its price was 600 USD. Distribution of old Hydrus-2D was terminated in 2006 because this program was replaced by a new version of HYDRUS (2D/3D). MESHGEN has been completely rewritten too and the new version is currently distributed under name MESHGEN Plus. For more information about MESHGEN pricing and ordering, please, visit the MESHGEN Plus page.
Download a Demo Version
Although we still enable downloading the Meshgen-2D demo version, please note that there may be some problems under new operating systems, for example Windows Vista or later. We recommend using the latest version of MESHGEN Plus. You can find the Meshgen-2D installation program on the MESHGEN Plus downloads page.