Computational Fluid Dynamics (CFD) deals with computing the equations of fluid flows using numerical methods instead of partial differential equations. The Discrete-Event System specification (DEVS) theory has already been used to approximate various continuous systems by applying a quantized state system approach. In this research, we experimented with a method based on Cell-DEVS theory and CF...

In this study, computational fluid dynamics (CFD) modeling was conducted to optimize gas sampling locations for the early detection of spontaneous heating in longwall gob areas. Initial simulations were carried out to predict carbon monoxide (CO) concentrations at various regulators in the gob using a bleeder ventilation system. Measured CO concentration values at these regulators were then use...

This paper shows distinctive features and some results obtained with a new numerical methodology for Computational Fluid Dynamics (CFD), which is the result of the right combination of Bond Graph concepts with elements of Numerical Methods. This methodology was used so far to model single-phase, single-component and single-phase, multicomponent flows. The main characteristics of this new method...

A reliable and comprehensive assessment of nasal breathing is problematic and still a common issue in rhinosurgery. Impairments of nasal breathing need an objective approach. In this regard, currently rhinomanometry is the only standard diagnostic tool available but has various limitations. However, in the last decade, computational fluid dynamics (CFD) has become a promising method in facing t...

Computational fluid dynamics (CFD) analysis may quantify the severity of anatomical airway restriction in obstructive sleep apnea syndrome (OSAS) better than anatomical measurements alone. However, optimal CFD model endpoints to characterize or assess OSAS have not been determined. To model upper airway fluid dynamics using CFD and investigate the strength of correlation between various CFD end...

Over the past thirty years, numerical methods and simulation tools for incompressible flows have been advanced as a subset of the computational fluid dynamics (CFD) discipline. Although incompressible flows are encountered in many areas of engineering, simulation of compressible flow has been the major driver for developing computational algorithms and tools. This is probably due to the rather ...

In the chemical process industry bubble columns are widely used and there is a lot of interest in the modelling of the gas-liquid flow in such equipment with the aid of Computational Fluid Dynamics (CFD). In order to validate CFD simulations of gas-liquid flows in bubble columns one needs detailed measurement data at moderate gas fractions (i.e. up to 5 vol.%). For the validation of CFD results...

In the framework of the ASCHLIM project, a group of European experts in thermal hydraulic calculation has been clustered to evaluate the state of the art of CFD (Computational Fluid Dynamics) codes applied to ADS designs. The work of this group, supported by the Vth Framework Program of the European Union, has been focused on CFD analysis of the experiments that includes thermal hydraulic pheno...

The computational fluid dynamics is concentrated on the forced air cooling of the CPU using a heat sink. This paper utilizes CFD to identify a cooling solution for a desktop computer, which uses an 80 W CPU maximum whereas this number will be increased in the range of 70-120W in the forthcoming desktop computer systems. This paper considers the optimal plate fin heat sink design and cylindrical...