Energy transfer via bath gas collisions is an important factor in controlling the kinetics of many combustion reactions. Previous work [1, 2] demonstrated the feasibility and accuracy of trajectory calculations for predicting energy transfer parameters for use in the master equation calculations of pressure dependent rate coefficients. Here we use these methods to study collisions between acety...

In this paper, we present a fast and accurate method for the combined detection and interactive visualization of vortex structures in 3D flow and their corresponding velocity field. Vortex surfaces are extracted by identifying vortex core lines in combination with isosurfaces of λ2. The velocity field on those vortex surfaces is visualized by a surface LIC method that works in image space. An e...

There is a need for large-scale, real world, diverse, and context rich vehicle acceleration catalog that can be used to design, analyze, compare various intelligent transportation systems. This paper fulfills three primary objectives. First, it provides such through the Surface Accelerations Reference, which openly available as an interactive analytics tool well open downloadable dataset. The R...

In this paper, we introduce a new approach to mesh an animated implicit surface for rendering purposes. This approach is based on a double triangulation of the surface. In the first triangulation, the vertices are the nodes of a finite element model. The aim of this model is to uniformly and dynamically sample the surface. It is robust, efficient and prevents the inversion of triangles. The sec...

A hybrid automatic and interactive scheme is developed for partitioning the surfaces of mechanical parts represented by finite element meshes on the basis of geometric discontinuity. Given a finite element surface mesh M in three dimensions, the algorithm firstly finds a partition of M into k subregions k M M ,..., 1 on the basis of 1 G discontinuities in an automatic manner. Secondly, an inter...

Interactive applications such as virtual reality systems have become popular in recent years. A ground surface composed of a granular material can be deformed when it comes into contact with an object, and, in this paper, we propose a deformation algorithm for the ground surface which is useful for such applications. The deformation algorithm is divided into three steps: (1) detection of the co...

We present a novel and effective method for modeling a developable surface to simulate paper bending in interactive and animation applications. The method exploits the representation of a developable surface as the envelope of rectifying planes of a curve in 3D, which is therefore necessarily a geodesic on the surface. We manipulate the geodesic to provide intuitive shape control for modeling p...

We present new hardware-accelerated techniques for rendering surface light fields with opacity hulls that allow for interactive visualization of objects that have complex reflectance properties and elaborate geometrical details. The opacity hull is a shape enclosing the object with view-dependent opacity parameterized onto that shape. We call the combination of opacity hulls and surface light f...

Level-set methods, which deform implicitly defined surfaces using partial differential equations, have applications in a wide range of fields including vision, image processing, visualization, graphics, and computational physics. We propose a novel interactive parallel scalable level-set algorithm, based on a narrow band method, which incorporates dynamic load balancing. We show results on a di...