Mesh Partitioning Technique for Three-dimensional Simulation of Coextrusion
نویسنده
چکیده
A new algorithm for simulation of polymer coextrusion is introduced. In the new algorithm, the finite element mesh of tetrahedral elements remains unaltered as the interface shape between adjacent polymer layers is developed during the simulation. The use of a fixed finite element mesh for coextrusion simulation is possible because in the new algorithm the interface between the two polymers is not required to match with an interelement boundary of the tetrahedral elements in the mesh. Instead, by partitioning the tetrahedral elements intersected by the interface into two tetrahedral, pyramidal or prismatic finite elements, in the new algorithm, the interface is allowed to pass through the interior of the tetrahedral elements in the original finite element mesh.
منابع مشابه
A two dimensional Simulation of crack propagation using Adaptive Finite Element Analysis
Finite element method (FEM) is one of the most famous methods which has many applications in varies studies such as the study of crack propagation in engineering structures. However, unless extremely fine meshes are employed, problem arises in accurately modelling the singular stress field in the singular element area around the crack tip. In the present study, the crack growth simulation has b...
متن کاملA Parallel Algorithm for the DynamicPartitioning of Particle - Mesh
Particle tracking methods are a versatile computational technique central to the simulation of a wide range of scientiic applications. In this paper we present a new parallel approach for the dynamic partitioning of particle-mesh computational systems. The approach uses a framework, the \in-element" particle tracking method, based on the assumption that particle trajectories are computed by pro...
متن کاملSequential Mesh Coding Using Wave Partitioning
Recently, various three-dimensional(3-D) mesh coding schemes have been proposed to improve compression efficiency or error resilience. However, we need to consider both coding efficiency and error resilience when we send 3-D mesh data over bandwidth-limited transmission channels. In this paper, we propose a sequential mesh coding algorithm using the vertex pedigree based on the wave partitionin...
متن کاملThree-dimensional simulation of human teeth and its application in dental education and research
Background: A comprehensive database, comprising geometry and properties of human teeth, is needed for dentistry education and dental research. The aim of this study was to create a three-dimensional model of human teeth to improve the dental E-learning and dental research. Methods: In this study, a cross-section picture of the three-dimensional model of the teeth was used. CT-Scan im...
متن کاملNumerical optimization of hydrofoil geometry for a Darrieus hydraulic turbine using dynamic mesh and central composite design
In this study, a Darrieus hydraulic turbine for power generation applications is chosen and the response surface methodology (RSM) based on central composite design (CCD) is applied to obtain the optimized design for its hydrofoil geometry to increase the torque coefficient. For this aim, all turbine performance factors, except hydrofoil geometry, were considered to be constant and the turbine ...
متن کامل