This study computationally investigates the hydrodynamics of different serpentine flow field designs for redox batteries, which considers Poiseuille in channel and Darcy porous substrate. Computational Fluid Dynamics (CFD) results in-house developed code based on Finite Volume Method (FVM) conventional (CSFF) agreed well with those obtained via experiment. The deviation pressure drop was less t...

Automatic Resolution Control for the Finite Volume Method (FVM) shows signs of rapid development in recent years. The objective of the procedure is to obtain a numerical solution of prescribed accuracy with minimum eeort in terms of time and computational resources. It consists of two parts: an a-posteriori error estimate and an appropriate modii-cation of the spatial and temporal discretisatio...

Abstract. We present pre-stack depth-imaging results for a case study of 3D reflection seismic exploration at the Blötberget iron oxide mining site belonging to Bergslagen mineral district in central Sweden. The goal is directly image ore-bearing horizons and delineate their possible depth extension below depths known from existing boreholes. For this purpose, we applied tailored pre-processing...

In simulations of Computational Fluid Dynamics (CFD), the numerical dissipation generated from discretization of governing equations can rarely be ignored. Estimating numerical dissipation rate and numerical viscosity is not only pressing for subgrid scale (SGS) modelling in Large Eddy Simulations (LES) and low order methods such as Finite Volume Method (FVM) in commerical codes, but also helpf...

The outdoor ultra-high voltage (UHV) dry-type air-core smoothing reactors (DASR) of High Voltage Direct Current systems are equipped with a rain cover and an acoustic enclosure. To study the convective heat transfer between the DASR and the surrounding air, this paper presents a coupled model of the temperature and fluid field based on the structural features and cooling manner. The resistive l...

We introduce a numerically improved image reconstruction technique for imaging two-phase oil–gas pipe flows using electrical capacitance tomography, based on simulated annealing and iterative linear forward modelling. In the simulated annealing method, a permittivity image is reconstructed by minimizing iteratively an energy function related to the difference between the measured ECT data and t...

INTRODUCTION The educational program for health care personnel is important for reducing preanalytical errors and improving quality of laboratory test results. The aim of our study was to assess the level of knowledge on preanalytical phase in population of biomedicine students through a cross-sectional survey. MATERIALS AND METHODS A survey was sent to students on penultimate and final year ...