We present a computational module for interactively visualizing, large-scale, 3D un-structured meshes. Scientists and engineers routinely solve large-scale computational boundary value problems on unstructured grids. These grids typically range from several hundred thousand elements to millions of elements. With this ability to solve such large-scale problems comes the challenge of viewing the ...

We present a computational module for interactively visualizing large scale D un structured meshes Scientists and engineers routinely solve large scale computational boundary value problems on unstructured grids These grids typically range from several hundred thousand elements to millions of elements With this ability to solve such large scale problems comes the challenge of viewing the D nite...

Over the years, multigrid has been demonstrated as an efficient technique for solving inviscid flow problems. However, for viscous flows, convergence rates often degrade. This is generally due to the required use of stretched meshes (i.e., the aspect ratio AR = ∆y/∆x << 1) in order to capture the boundary layer near the body. Usual techniques for generating a sequence of grids that produce prop...

A great challenge for flow simulators of new generation is to gain more accuracy at well proximity within complex geological structures. For this purpose, a new approach based on hybrid mesh modeling was proposed in 2D in [1]. In this hybrid mesh, the reservoir is described by a structured quadrilateral mesh and drainage areas around wells are represented by radial circular meshes. In order to ...

The accuracy of the least-squares technique for gradient reconstruction on unstructured meshes is examined. While least-squares techniques produce accurate results on arbitrary isotropic unstructured meshes, serious di culties exist for highly stretched meshes in the presence of surface curvature. In these situations, gradients are typically under-estimated by up to an order of magnitude. For v...

We have recently introduced a new cell-centered Lax-Wendroff HLL hybrid scheme for Lagrangian hydrodynamics [Fridrich et al. J. Comp. Phys. 326 (2016) 878-892] with results presented only on logical rectangular quadrilateral meshes. In this study we present an improved version unstructured meshes, including uniform triangular and hexagonal meshes non-uniform polygonal The performance of the is ...

A number of research studies have employed a wide variety of mesh styles and levels of grid convergence to assess velocity fields and particle deposition patterns in models of branching biological systems. Generating structured meshes based on hexahedral elements requires significant time and effort; however, these meshes are often associated with high quality solutions. Unstructured meshes tha...

Some recent results obtained using adaptive finite clement methods and so-called smart algorithms in twoand three-dimensional problems in /1uid mechanics arc discussed. These include applications of hand h-p-adaptive methods on unstructured meshes. 3. LOCAL APPROXI~IATION OF THE NAVIER-STOKES EQUATIONS ON UNSTRUCTURED MESHES Having an estimate of the error in the solution at a grid celL what ca...

We propose methods that allow the investigation of local modifications of aerodynamic design data represented by discrete unstructured surface meshes. A displacement measure is suggested to evaluate local differences between the shapes. The displacement measure provides information on the amount and direction of surface modifications. Using the displacement measure in conjunction with statistic...

We present a novel approach to fluid simulation, allowing us to take into account the surface energy in a precise manner. This new approach combines a novel, topology-adaptive approach to deformable interface tracking, called the deformable simplicial complexes method (DSC) with an optimization-based, linear finite element method for solving the incompressible Euler equations. The deformable si...