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By using the turbulence model in Fluent.14 software, three-dimensional numerical simulation of dense phase in different flue gas entrance tower height of internal flow field.
It has made great economic benefits for using CFD to simulate and calculate numerical desulfurization reactor design , and according to the numerical results of desulfurization reactor optimization, Numerical simulation of rational use of CFD desulfurization system, not only can shorten the design cycle, reduce design cost, and can obviously improve the design quality, and its superiority is the traditional experimental methods are incomparable [1,2].
The simulation boundary conditions is entrance velocity and Pressure outlet.
Optimization Design of Semi-dry Flue Gas Desulphurization Reactor Based on The CFD.
Hydrodynamic Simulation and Optimized Design of a Large sized Flue Gas Desulfurizer.

In the process, ANSYS-FLOTRAN CFD program is employed.
Finite element method ANSYS-FLOTRAN CFD is an advanced tool used to analyze the two and three dimensional flowing fields[2].
It usually includes three steps as follows: model building, loads applying and equation solving. 3.1 model building （1）Analysis type choice:Choose the analysis function of ANSYS-FLOTRAN CFD
Conclusions Using the finite element method and ANSYS-FLOTRAN CFD program,the temperature field is calculated in different temperatures.The calculation results and analysis results show: (1) The temperature difference between two thermistors changes with the tilt angle's change
[2] Guoqiang Wang, Numerical simulation and practice on ANSYS [M], Xi'an: Northwest Industry University Press, 1999. 221

Raja, Batu Pahat, Johor Malaysia abukhari@uthm.edu.my, bali.smew@yahoo.com, camirk@uthm.edu.my, dizzuddin@uthm.edu.my Keywords: CFD, Fractal, Mixing, Stirred tank Abstract.
In order to achieve the objective, the simulation of palm oil-methanol mixing was carried out by using ANSYS Fluent software.
The model of stirred tank that was set up for the simulation work is shown in Figure 2.
In the beginning of the transient simulations, a higher concentration of methanol could be observed at the inlet.
CFD Analysis of Circle Grid Fractal Plate Thickness on Turbulent Swirling Flow, Applied Mechanics and Materials. (2014) 466: 109-113 [5] Manshoor B, Nicolleau FCGA and Beck SBM.

Numerical simulation of the flow characteristics of 35t/h Internally circulating fluidized bed CHEN Yulin1, a, WANG Qing2, b, LIU Congcong2, c, Ge Jianxin2, d 1Jinneng Project Management Co.
The simulation results provided a reference for the flow structure optimization of the inner circulating fluidized bed and the enlargement of the inner circulating fluidized bed boiler. 1 Introduction The inner circulating fluidized bed boiler , a type of fluidized bed different from the traditional bubbling or circulating fluidized bed, have the characteristics of rapid burning, uniform temperature, clean emission and controlled combustion process.
The simulation results provided a reference for the flow structure optimization of the inner circulating fluidized bed and the enlargement of the inner circulating fluidized bed boiler.
CFD modeling of gas-solid flow in an internally circulating fluidized bed.
Thermal Power Generation, 1999,(3), 18-29 [4] Nan Zhang, Jinghai Li. 3D CFD simulation of hydrodynamics of a 150 MWe circulating fluidized bed boiler.

At present, in the study of blood pump rotor system,Zhang Baoning applying CFD for artificial blood pump flow field numerical simulation .It is concluded that the fluid flow in the blood pump is very complex,it also puts forward relevant improvements on the blood pump.Gao Dianrong use Three-dimensional numerical simulation and analysis for the Conical spiral axial flow blood pump.
Simulation experiment indicates that the Conical taper screw rotation speed and axial blood pump should not be too big.Otherwise it will make the flow field become disorder.Yun zhong give the simulation for the impeller and velocity, pressure, stress distribution of the micro axial blood pump rotor system of blood flow which designed by themselves.And put forward the corresponding improvements to its structure.
Mini hemoreliable axial flow LVAD with magnetic bearings: part 2,design description [J].ASAIO Journal,(2002),48(1):p.98-100 [5] Zhang BaoNing ,Zhang YangJun,Wu Yulin,Application the CFD in artificial blood pump flow field for numerical simulation.
[J]Chinesejournal of biomedical engineering,(2002),21(1):p.41-45 [6] Gao DianRong,Wang GuanYi The Three-dimensional numerical simulation and analysis for the fluency of the conical spiral blood pump,[J],Journal of mechanical engineering,(2007),43(9):p.47-50
[7] YunZhong,Tan JianPing,Gong ZhongLiang, the simulation and optimization research about the CFD of the axial blood pump impeller structure.

Some previous studies have compared modeling methods and simulation in case studies, for example study of chlorine releases from water treatment works model and physical modeling) [7] or CFD modeling of toxic gas dispersion in the vicinity of complex buildings, structures, and topography (comparison of FLACS model with 2D models) [8].
Therefore these conditions should be explored by physical model experiments and CFD modeling.
A method to identify and quantitatively evaluate such uncertainties would be to carry out a comparative study of CFD models of the same scenario.
Because CFD modeling is expensive and time-consuming approach, the results of the assessments which have been reported above can serve as a basis for preparing such simulations.
Therefore the predictions from common software packages as ALOHA, EFFECTS, should be completed with CFD models.

Tests have been simulated in CFD software for validating results.
Simulation Tests The test results of storage tank is validated by simulation in CFD-Fluent (Version 6.3.26) software.
The simulation has been held out by applying the boundary conditions of the wall with convective heat flux and ambient temperature.
The temperatures at the end of the cooling test simulation are found to be matching with the experimental outputs.
Also, it is clearly understood from the Fig .8, the cooling test results are very close to the CFD results.

CFD technique is often employed to simulate and optimize air duct design, but the corresponding experiment validation in metro vehicle is rare.
CFD technique is often employed to simulate and optimize air duct design, but the corresponding experiment validation in metro vehicle is rare.
But, the reliability of simulation results need to test to verify.
For above phenomenon, simulation result agrees with test result.
Comparison on the Simulation and Test Value of Air Volume.

Presenting a numerical simulation of the airflow inside a hybrid solar-electrical dryer, [12] used ANSYS-CFX 11 software package, which is a general purpose CFD package that includes a solver based on the finite volumes method for structured and unstructured grids.
The numerical simulations were implemented using the Reynolds-Averaged Navier-Stokes (RANS) equations.
[16] employed CFD to perform simulations of steady state forced and natural convection greenhouse dryer with modifications to identify the temperature distribution with variation in wind velocity.
Mujumdar, Basic process calculations and simulations in drying, Fundamental aspects, in: A.S.
Sun, Applications of computational fluid dynamics (CFD) in the food industry: A review, Computers and Electronics in Agriculture. 34 (2002) 5–24

Ranade [4] investigated the flow patterns and mixing in jet mixed tanks equipped with alternating jets using CFD simulations using a standard model for turbulence but the model was not validated by comparison with the experimental measurements.
It will be shown that a CFD model facilitated with a proper turbulence model is a capable of simulating the flow in such jet mixer
Accuracy of simulation results depends on the number of grids used.
Because the complicated configuration, the simulation divide into two step: the riser and the liquid jet mixer.
Hence for all the profile simulation, only 178492 nodes were used.