Barbara Glut

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This paper presents a technique of incorporating anisotropic metric into the Delaunay triangulation algorithm for unstructured mesh generation on 3D parametric surfaces. Both empty circumcircle and inner angles criteria of Delaunay retriangulation can be successfully used with the developed method of coordinate transformation with little adjustments. We(More)
This work presents some aspects of beam-tracing techniques used in sound simulation. The Adaptive Frustum algorithm, which was designed for detecting obstacles using beam subdivision, was reviewed for its efficiency as well as its accuracy. Some possible improvements have been suggested; however, they do not fully solve the problems of using this algorithm(More)
Calculations using unstructured meshes arise in a wide variety of scienti c and engineering application areas. In order to take full advantage of parallel computers, which are currently a commonplace high performance computing platform, the mesh must be mapped onto all available processors. A parallel system has a very high level of performance if the(More)
The subject of this article concerns some aspects of the generation of 3D surface meshes, widely used in many scientific applications. This work contains a description of data structure used in the developed mesh generator and issues related to the management of this structure. The proper organization of this structure coupled with the appropriately(More)
The subject of the article concerns the issues of remeshing, transforming a polygonal mesh into a triangular mesh adapted to its surface. From the initial polygonal mesh, the curvature of surface and boundary is retrieved and used to calculate a metric tensor varying in three-dimensional space. In the proposed approach, the curvature is computed using local(More)
This paper examines the procedure of mesh adaptation on plane using the concept of an anisotropic metric. The metric is coupled with the curvature of the solution surface and it governs the process of mesh generation. The metric values are determined from the discrete data from the current simulation step and are stored in the background mesh with the(More)
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