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Motion simulation of desulfurized fly ash in dense flow absorber based on computational fluid dynamics Qian Jia, Cunyi Song, Zhensong Tong, Donghui* Zhang, Kaihua Chen, Xi-ning Lu, Yue Zhang School of Civil and Environmental Engineering, University of Science and Technology Beijing, 100083, Beijing, China Email: jiamoney@126.com Keywords: dense flow absorber, desulfurized fly ash, sintering gas, numerical simulation, computational fluid dynamics Abstract.
This paper employed Fluent software based on Computational Fluid Dynamics (CFD) to simulate the track of desulfurized fly ash in flue gas.
In this simulation, velocity is 18 m·s-1, turbulence intensity is 2.46%, water head diameter is 3.2 m.
Fig.3 The abrasion rate gradient of inner surface and convex surface The deposition of desulfurized fly ash inside of tower body The deposition of desulfurized fly ash inside of tower body was evaluated based on numerical simulation.

Investigation Using Simulations for the Development of Low Cost Catalytic Converter from Non-Precious Metals A.K.M.
Simulations using FLUENT and COMSOL have shown the actual characteristics of the catalytic converter performance.
Hence CFD analysis is used to design efficient catalytic converters.
The simulation result of backpressure in catalytic converter is shown in Fig. 2 and Fig. 3.
Backpressure vs speed from simulation Figure 3.

Furthermore, the flow field and temperature field of the different type of cooling hole are analyzed using computational fluid dynamics (CFD) model and finite element method.
Simulation parameters are 1300� for combustion chamber, 15� for cooling air, 100m/s velocity(turbulent flow condition), and 1MPa pressure in the outlet of the cooling hole.
CFD simulations of net-type turbulence promoters in a narrow channel.

Effect of the compressible flow characteristics inside a high-speed electromagnetic valve on the operation of the valve is investigated using a numerical simulation.
The numerical simulation solves Navier-Stokes equations and heat transfer equations by coupling, and the compressible flow phenomena inside the valves are studied focusing on the shock structures. .
Most of the studies in the published literatures are 1) on the modeling of the dynamic characteristics of solenoid valves for using control methods[2,3,4], 2)numerical simulations on the pseudo-static and transient performance of the electromagnetic valve using finite elements and other computational methods [5,6].
Summary In the present study, three-dimensional unsteady compressible flow characteristics inside a solenoid on/off switching valve are investigated using a numerical simulation.
Spalding:Computer Methods for Applied Mechanics and Engineering Vol.3(1974), p.269 [9] D.Wilcox:Turbulence Modeling for CFD(DCW Industries, La Canada, CA, USA 1992) [10] R.L.Meakin: Handbook of Grid Generation, CRC Press.

Kefayati et al. [11] investigated simulation of natural convection in an open enclosure with water/copper nanofluid by Lattice Boltzmann method.
Sajjadi, Lattice Boltzmann simulation of natural convection in tall enclosures using water/SiO2 nanofluid, Int.
Hasanuzzaman, Application of Computational Fluid Dynamics (CFD) for nanofluids, Int.
Darzi, Lattice Boltzmann simulation of nanofluid in lid-driven cavity, Int.

In 2007, Zhang Wenfang [18] probes the algorithm of the natural scenery in the virtual scene, based on the study of key water particle system and CFD physical model algorithm.
Different Methods Of Irregular Objects and Other Simulation Method.
It can display certain simulation scene, in case of not having high expectations for simulation of smoke, particle system method has the great advantage.
A simple texture images can replace so many particles of the simulation, so it can save a lot of computer resources, accelerate the speed of computer simulation.
Fluid Simulation with Articulated Bodies.

In an interactive simulation environment, a full multi-phase casting process simulation (thermal-fluid simulation using multi-physical domain) along with its material and mechanical simulations are carried out in a single environment.
In the last couple of decades, the issue of multi-physical coupled simulation technology for cast through process simulation has been a focus of many scientific research works, where a number of advanced simulation methods have been developed.
Thermal Fluid and Mechanical simulation A popular method of casting simulation is an Eulerian fluid-thermal simulation where the whole process of mold filling (fluid zone), solidification (mushy zone) and solid state are modelled using an Eulerian domain.
Wang, Heat transfer coefficient study for air quenching by experiment and CFD modeling, 137th Annual Meeting & Exhibition: Materials Characterization, Computation and Modeling, TMS (The Minerals, Metals & Materials Society), Warrendale, PA, USA, (2008), 271-279
Chimani, Multi-physical process simulation of continues casting – Full interactive simulation, European Conference of Continues Casting, Graz, Austria, (2014), to be presented

Introduction In recent years, a few research groups have been developing and evaluating their computational methods, including both CFD and CSD ones, by using unique FV methods [1-4].
A new matrix-free implicit unstructured multigrid finite volume (FV) solver for structural dynamics was presented by Xia et al. [3] for incompressible flow FSI computation and a similar method was developed by Lv et al. [4] for compressible flow FSI simulation.
For all of the grids the simulation is performed by exerting the same load on the right tip of the cantilever until the solution is converged.
The calculation of case 2 give a perfect results compared with those obtained in case1 which means the boundary conditions do really affect the simulation results.
Computer Modelling and Simulation in Engineering 4 (1999) :213-218

Numerical Simulation Computational Domain Size.
Navier-Stokes (RANS) equations and the realizable k-epsilon model are chosen in the simulation.
In order to compare the influence of two kinds of front thin plates on the aerodynamic resistance more intuitively, simulation without front thin plates and simulation without engine cabin were added, known as model 2 and 3 respectively.
The simulation results are shown in Table 1.
Numerical simulation of the influence of rear-end panels on the wake flow field of a heavy-duty truck[J].

Fig.4 The overall dimensions of computational domain (unit : mm) Mesh Used for the Numerical Simulation.
Tetrahedral mesh and prismatic mesh were applied in the simulation.
A Parametric Study on the Diffuser and Ground Clearance of a Simplified Car Model using CFD.
Effect of Turbulence Parameters on Numerical Simulation of Complex Automotive External Flow Field.
Basic Course of Convection Heat Transfer Numerical Simulation using ANSYS CFX.