This paper presents an accurate and efficient computational strategy for the simulation of coupled masonry structures which combines a partitioned mesoscale modelling approach for brick-masonry components with a mortar mesh tying method for non-conforming interfaces. This allows the independent modelling of the individual structural components and the efficient tying of the subdomains with accu...

The development of adaptive numerical schemes for steady transport equations is addressed. A goal-oriented error estimator is presented and used as a refinement criterion for conforming mesh adaptation. The error in the value of a linear target functional is measured in terms of weighted residuals that depend on the solutions to the primal and dual problems. The Galerkin orthogonality error is ...

The continuing growth of complexity in physical models and the addition of more accurate geometrical features intensifies the weight placed on mesh generation. Driven by the increase of computational speed and the availability of multi-core CPUs current programming paradigms are not sufficient anymore to fully utilize the available computational power. A high performance mesh generation approac...

objectives: indicators of oral health-related quality of life (ohrqol) in children are widely adopted to evaluate the effects of oral problems. recently, the scale of oral health outcomes for 5-year-old children (soho-5) was developed based on the children’s self-reports. this study aimed to evaluate the validity and reliability of the persian version of the questionnaire in a sample of iranian...

The use of boundary-conforming finite-element methods is considered for the solution of surface-tensiondominated free-surface flow problems in three dimensions. This class of method is based upon the use of a moving mesh whose velocity is driven by the motion of the free surface, which is in turn determined via a kinematic boundary condition for the normal velocity. The significance of the meth...

This paper presents a novel formulation for static limit analysis of structures, which the Airy stress function is approximated using stabilized Radial Point Interpolation Mesh-free method (RPIM). The field determined as second-order derivatives function, and equilibrium equations are automatically satisfied priori. so-called Stabilized Conforming Nodal Integration (SCNI) employed to ensure pre...

A parallel tetrahedral mesh adaptation code is expanded to treat general, mixed-element unstructured meshes comprised of any combination of basic element types. Emphasis is placed on developing conforming mesh modification methods that are solver-independent. Specific developments include the implementation of a treatment for viscous, high aspect ratio near wall tetrahedra, and cell subdivision...

We consider space-time discretizations of non-linear parabolic equations. The temporal discretizations in particular cover the implicit Euler scheme and the mid-point rule. For linear equations they correspond to the well-known A-stable θ-schemes. The spatial discretizations consist of standard conforming finite element spaces that can vary from one time-level to the other. The spatial meshes m...

We present a method of constructing the volume meshes of the membrane-channel protein system for finite element simulation of ion channels. The membrane channel system consists of the solvent region and the membrane-protein region. Our method focuses on labeling the tetrahedra in the solvent and membrane-protein regions and collecting the interface triangles between different regions. It contai...

A higher-order accurate finite element method is proposed which uses automatically generated meshes based on implicit level-set data for the description of boundaries and interfaces in two and three dimensions. The method is an alternative for fictitious domain and extended finite element methods. The domain of interest is immersed in a background mesh composed by higher-order elements. The zer...