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SUMMARY An octree-based mesh generation method is proposed to create reasonable-quality, geometry-adapted unstructured hexahedral meshes automatically from triangulated surface models without any sharp geometrical features. A new, easy-to-implement, easy-to-understand set of refinement templates is developed to perform local mesh refinement efficiently even(More)
Mesh generation is a critical step in high fidelity computational simulations. High quality and high density meshes are required to accurately capture the complex physical phenomena. A parallel framework has been developed to generate large-scale meshes in a short period of time. A coarse volume mesh is generated first to provide the basis of block(More)
A three-dimensional (3D) geometric model obtained from a 3D device or other approaches is not necessarily watertight due to the presence of geometric deficiencies. These deficiencies must be repaired to create a valid surface mesh on the model as a preprocess of computational engineering analyses. This procedure has been a tedious and labor-intensive step,(More)
In this paper, we propose a robust isotropic tetrahedral mesh generation method. An advancing front method is employed to control local mesh density and to easily preserve the original connectivity of boundary surfaces. Tetrahedra are created by each layer. Instead of preparing a background mesh for mesh spacing control, this information is estimated at the(More)
We describe the software architecture of a system for doing multi-physics simulation of a coupled fluid, thermal, and mechanical fracture problem. The system is organized as a collection of geographically-distributed software components in which each component provides a web service, and uses standard web-service protocols to interact with other components.(More)
This paper describes our experience in designing and building a tool for visualizing the results of the CE-QUAL-ICM Three-Dimensional Eutrophication Model, as applied to water quality in the Chesapeake Bay. This model outputs a highly multidimensional dataset over very many timesteps – outstripping the capabilities of the visualization tools available to(More)
Topological representations are being used to define geometric models suitable for grid generation and grid generation tools are being developed that work directly on topological entities. While there are standards for topological representation, there is no standard for Application Programming Interface (API) for grid generation over topological models.(More)
This paper deals with structured grid generation using Floater's parametri-zation algorithm fors urface triangulation. It gives an outline of the algorithm in the context of structured grid generation.Then it explains how the algorithmcan be used to generate a structured grid over a singular NURBS surface patch. This is an alternatem ethod to the known(More)
We propose an unstructured mesh redistribution method without using skewed elements for steady-state problems. The regions around solution features are indicated by a sensor function. The medial axes of the strong feature regions are calculated so that elements can be clustered around the most important solution features efficiently. Two approaches , a(More)