Inside-out algorithms provide the ability to generate all hexahedral meshes by first introducing a structured mesh that bounds the complete body modeled, then secondly by manipulating the exterior of this structured mesh to fit the specific boundary of the body. Such algorithms generally provide high quality meshes on the interior of the body but suffer with lower quality elements on the bounda...

Successful design and operation of hydraulic structures require more effective and reliable tools to be used in a variety of practical problems, including bottom outlets, intakes and/or spillways. Until recently, physical modeling has been the principal approach in studying the flow pattern and behavior of such structures. The main concerns might generally be related to estimating of discharge ...

SolidWorks ® Flow Simulation is an intelligent, easy-to-use computational fluid dynamics (CFD) program that facilitates the work of design engineers who use SolidWorks 3D CAD software for design creation. This paper details the approach and theory behind the Cartesian mesh generation used in SolidWorks Flow Simulation. Detailed explanation and examples will support how this choice of mesh gener...

The goals for the NFEARS project | Providing computationally cheap nite element solutions, within a given tolerance from the exact solution to nonlinear, parameterized boundary value problems | and the means to reach the goals, are described in detail. Also it is explained how one particular subgoal of the project has been realized. This subgoal was to construct a theory for nding near optimal ...

Generating quadrilateral meshes is very important in many industrial applications such as finite element analysis and B-spline surface fitting. However, it is still a challenging task to design appropriate vertex connectivity in the quadrilateral meshes by respecting the shapes of the target object and its boundary. This paper presents an approach for interactively editing such mesh topology in...

Preserving the finite positive velocity of propagation of continuous solutions of wave equations is one of the key issues, when building numerical approximation schemes for control and inverse problems. And this is hard to achieve uniformly on all possible ranges of numerical solutions. In particular, high frequencies often generate spurious numerical solutions, behaving in a pathological manne...

In this paper, we present a method for generating hex-dominant meshes with targeted all-hex regions over closed volumes. The method begins by generating a piecewise-continuous metric tensor field over the volume. This field specifies desired anisotropy and directionality during the subsequent meshing stages. Meshing begins with field-guided tiling of individual structured hexahedral fronts wher...

The proposed research for the Computational Engineering and Sciences (CES) option of the Computational and Applied Mathematics (CAM) Ph.D. program is in the area of tetrahedral/hexahedral finite element meshing from volumetric imaging data with defined boundaries. The proposed research work is to extract adaptive tetrahedral and hexahedral finite element meshes with guaranteed quality directly ...