A 2D axisymmetric computational fluid dynamics (CFD) model, coupled to a 1D bed has been developed capture the key processes that occur within rotary lime kilns. The model simulates calcination reaction using shrinking core and predicts start of degree at end kiln. heat transfer due radiation, convection conduction between gas, wall, chains, bed. gas models are by mass sinks simulate transfer, ...

In this paper, CFD assessment of the DYNASTY natural circulation loop, adopting a RANS turbulence modeling approach, is performed using OpenFOAM open source toolbox. The facility designed to investigate stability and dynamics heat-generating fluids, in particular molten salts, or forced regime as such, it one-of-a-kind, large scale for studying presence distributed heating. work, model set up v...

The effect of human motion on wake flow dynamics and particle dispersion were investigated by experimental visualisation and Computational Fluid Dynamics (CFD) modelling using a mannequin model with realistic human shape. A new smoke visualisation technique is proposed which made use of the chemical reaction between acetic acid and cyclohexylamine. The CFD model used a dynamic mesh to simulate ...

The overall efficiency of a regenerative chamber for a glass furnace mainly relies on the thermo-fluid dynamics of air and waste gas alternatively flowing through stacks of refractory bricks (checkers) determining the heat recovery. A numerical approach could effectively support the design strategies in order to achieve a deeper understanding of the current technology and hopefully suggest new ...

In this paper we present methods for parallelization of 3D CFD forest fire modelling code on Non-uniform memory computers in frame of the OpenMP environment. Mathematical model is presented first. Then, some peculiarities of this class of computers are considered, along with properties and limitations of the OpenMP model. Techniques for efficient parallelization are discussed, considering diffe...

Modelling water vapour flow, heat transfer and porosity in porous adsorbent is somewhat challenging simulation problem. Primary macroscopic water vapour flow models, such as Darcy's law, fail to predict the pressure drop entirely correctly for the reason that many of flow parameters not considered because of the simplifications that remain made for the multi-scale structure of the porous adsorb...

The design of furnaces and boilers for solid fuels is supported increasingly by powerful softwares and ever faster computers. A round-robin over the most important CFD (computational fluid mechanics) models and softwares currently available shows, however, that numerical procedures for particle/turbulence interactions are not (yet) very advanced. Particle/fluid interphase slip is considered, bu...