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Showing 1 to 17 of 17 for “"Advancing front"”.
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Parallelization of the Advancing Front Local Reconnection Mesh Generation Software Using a Pseudo-Constrained Parallel Data Refinement Method
… strength sequential mesh generator, called Advancing Front Local Reconnection (AFLR), are presented. AFLR has been under development for the last 25 years at the NSF/ERC center at Mississippi State University. The parallel procedure that is presented is called Pseudo-constrained (PsC) …
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Experimental Evaluation and Simulations of Fiber Orientation in Injection Molding of Polymers Containing Short Glass Fibers
… core layer, and microtextural description of the advancing front are included in this dissertation. The analysis and assessment of the radial evolution of fiber orientation and advancing front based on comparing the experimental data with simulation results are under ongoing investigation.
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Verification of a two-dimensional infiltration model for the resin transfer molding process
… flow rate conditions. The second, denoted the advancing front method, determines the permeability of a dry preform to an infiltrating fluid. Water, corn oil, and an epoxy resin, Epon 815, were used to determine the effect of fluid type and viscosity on the steady state permeability behavior of …
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Interfaces in disordered media. Scaling growth, avalanche dynamics, and microfluidic fronts
… all the physical forces that play a role at the advancing front, such as the random capillarity of the medium, the surface tension of the interface or the viscous pressure, induce the roughness of the front to show a rich variety of scaling regimes, with the unavoidable presence of crossover …
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Verification of a three-dimensional resin transfer molding process simulation model
… and compaction models. The steady-state and advancing front permeability measurement methods are compared. The results indicate that both methods yield similar permeabilities for a plain weave, bi-axial fiberglass fabric. Also, a method to determine principal directions and permeabilities is …
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High resolution algorithms for the Navier Stokes equations for generalized descretizations
… the unstructured grids were generated using an advancing front mesh generation procedure. Modifications to the three dimensional grid generator were necessary to discretize the surface grids for bodies with high curvature. In addition, mesh refinement algorithms were implemented to improve the …
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Improved Prediction of Glass Fiber Orientation in Basic Injection Molding Geometries
… disk injection molding geometry including the advancing front and simulating the sprue and gate region (SGM method) so that no assumption about fiber orientation at the mold entrance has to be made. Using a semi-flexible fiber model and orientation parameters obtained through rheology, …
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Adaptive unstructured spacetime meshing for four-dimensional spacetime discontinuous Galerkin finite element methods
We describe the spacetime discontinuous Galerkin method, a new type of finite-element method which promises dramatic improvement in solution speed for hyperbolic problems. These methods require the generation of spacetime meshes that satisfy a special causality constraint. This work focuses on the …
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Development of Finite Element Modeling Mesh Generation and Analysis Software for Light Wood Frame Houses
… and line constraints. The program implements the advancing front method for triangulation as discussed by Lee and Hobbs. The difference is made by implementing the algorithm using object oriented concepts and the extensive use of the powerful C++ Standard Template Library (STL). Quadrilateral mesh …
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Spreading of viscous fluids and granular materials on slopes
… of characteristics reveal how the speed of the advancing front depends importantly on the rate of fluid supplied at an earlier time. Viscous flows on surfaces with different shapes are described by similarity solutions to address problems motivated by engineering as well as geophysical …
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Modeling Temperature Dependence in Marangoni-driven Thin Films
… chosen such that these stresses lead to a stable advancing front.</p><p>Additional localized thermal Marangoni stress is used to control the thin film;</p><p>in particular, coating thickness is modulated through the intensity of such</p><p>localized forcing. As thermal effects are central to film …
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Improvement in Orientation Predictions of High-Aspect Ratio Particles in Injection Mold Filling Simulations
… to get aligned along the "-direction. In the frontal flow region orientation in the flow direction drops in all three layers due to fountain flow effects. Fiber orientation predictions in coupled and decoupled transient simulations using the Folgar-Tucker model, and the two slow versions of …
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Finite Element Modeling Driven by Health Care and Aerospace Applications
… mesh generation technique is a combination of Advancing Front type point placement, direct point insertion, and parallel multi-threaded connectivity optimization schemes. The mesh optimization is based on a speculative (optimistic) approach that has been proven to perform well on …
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Effects of fiber architecture and through-the-thickness stitching on permeability and compaction of textile preforms
… The results were then compared with a similar advancing front permeability test. The results were found to be extremely encouraging. The following work also involves the detailed study of compaction behavior of both multi-axial warp knit and braided preforms. Power law regression fit curves …
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Reynolds-Averaged Navier-Stokes Computation of Tip Clearance Flow in a Compressor Cascade Using an Unstructured Grid
… methods including Delaunay triangulation, advancing front method and advancing layer method. Then the whole computational domain including tip gap region is filled with prisms using the surface grids. Each prism is divided into three tetrahedrons. To accomplish this division in a consistent …
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Manufacturing of thermosetting polymers and composites using frontal polymerization: A numerical study
… manufacturing method for FRPCs based on Frontal Polymerization (FP) has been introduced by the Autonomous Materials Systems (AMS) group at the University of Illinois that greatly speeds up the process and substantially reduces the energy cost (by many orders of magnitude) duration of the …
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Spacetime damage-based cohesive model for elastodynamic fracture with dynamic contact
… to enable an efficient patch-by-patch, advancing-front solution scheme with O(N) computational complexity. Per-element balance properties, local adaptive operations, and the use of Riemann fluxes provide to the SDG method the extreme accuracy and efficiency required to solve multiscale …