In this article, one-phase and three dimensional computational fluid dynamics analysis was utilized to investigate the effect of annular field pattern of proton exchange membrane fuel cells (PEMFC) with different geometry on the performances and species distribution. This computational fluid dynamics code is used for solving the equation in single domain namely the flow field, the mass conserva...

We study the non-linear dynamics of a Penning trap plasma, including the effect of the finite length and end curvature of the plasma column. A new cylindrical PIC code, called KANDINSKY, has been implemented by using a new interpolation scheme. The principal idea is to calculate the volume of each cell from a particle volume, in the same manner as it is done for the cell charge. With this new m...

Computational Fluid Dynamics (CFD) is a fundamental step for the study and optimization of electricity production. Indeed, current power plants use water as a mean of convective heat transfer. Consequently, the simulation, analysis and visualization of fluid dynamics phenomena are of great importance for the energy industry. Electricite de France (EDF), being one of the biggest electricity prod...

This contribution is dedicated to demonstrating the high potential and manifold applications of state-of-the-art computational fluid dynamics (CFD) tools for free-surface flows in civil and environmental engineering. All simulations were performed with the academic research code ELBE (efficient lattice boltzmann environment, http://www.tuhh.de/elbe). The ELBE code follows the supercomputing-on-...

Dissipative particle dynamics (DPD) and its generalization – the fluid particle model (FPM) represent the “fluid particle” approach for simulating fluid-like behavior in the mesoscale. Unlike particles from molecular dynamics (MD) method, the “fluid particle” can be viewed as a “droplet” consisting of liquid molecules. In FPM, “fluid particles” interact by both central and non-central, short-ra...

Current multizone airflow network models assume air momentum effects, contaminant concentrations and air temperatures are uniformly and homogeneously distributed in a zone of a building. These assumptions can cause errors for zones where air and/or contaminant are not well mixed. A coupled multizone-CFD program has been developed to improve the multizone model by applying a CFD model to those p...