Keywords: Noise mapping Grid refinement Uncertainty Interpolation GIS Noise maps are usually represented as contour or isolines maps describing the sound levels in a region. Using this kind of representation the user can easily find the noise level assigned to every location in the map. But the acoustic calculations behind the map are not performed for every single location on it; they are only...

The Grid Workflow scheduling is considered an important issue in Workflow management. Workflow scheduling is a process of assigning workflow tasks to suitable computational resources. Workflow scheduling significantly affects the performance and the execution time of the workflow. A Workflow scheduling approach falls in one of three categories: static, dynamic or adaptive. Grid environment is a...

In this paper we present three improvements over the BergerColella’s adaptive mesh refinement (AMR) approach: adaptive clustering algorithm, conservative prolongation and restriction for cylindrical and spherical grid, and divergence-free reconstruction for AMR.

This work concerns the development of an adaptive multi-solver approach for CFD simulation of viscous flows. Curvilinear grids are used near solid bodies to capture boundary layers, and stuctured adaptive Cartesian grids are used away from the body to fill the majority of the computational domain. An edge-based meshless scheme is used in the interface region to connnect the near-body and off-bo...

We introduce an iterative grid redistribution method based on the variational approach which enables us to gain more precise control of the grid distribution near the regions of large solution variations. The method is particularly effective for solving PDEs with singular solutions (e.g. blow up solutions).

Various faults and disturbances often make the grid unbalanced distorted. To grid-connected converters resilient to distorted grid, real-time estimation of voltage sequences are essential. Adaptive-observer based grid-synchronization techniques very suitable for this purpose. In paper, a comparative analysis three recently proposed adaptive observer-based technique presented frequency sequence ...