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The grid accuracy which is required by simulation has been determined then the gas flow status has been analyzed through the comparison between numerical simulation results and empirical calculation results.
Some literature have been reported about flow distribution and pressure drop in stack and electrostatis precipirator using CFD method[1].
CFD is carried out to investigate the flow distribution in flue with inner supports.
Analysis of flow in rotating packed beds via CFD simulations—Dry pressure drop and gas flow maldistribution[J].
Simulation of the operation of an industrial wet flue gas desulfurization system[J].

From the CFD simulation, swept blade has higher pressure level than straight edge blades, which gives higher lift force as well as delays the stall point.
Moreover, EPPLER 423, SELIG S1223, Modified NACA0006 and FX 74-CL5-140 profiles considered for CFD analysis.
Kenny Lau, Design and Flow velocity simulation of Diffuser augmented wind turbine using CFD, Journal of Engineering Science and Technology, Vol.8, No.4 (2013) 372-384
[34] SK Thangavelu, CY Goh & CV Sia, Design and Flow Simulation of Concentrator Augmented Wind Turbine, IOP Conf.
Farooq, Modeling and analysis of wind turbine blade with advanced materials by simulation.

Combining with CFD wind field simulation of different architectural layouts, this paper studies the adaptive layout of residential architecture on surrounding environment.
Therefore, based on the Gaussian model, at the same time, combining with the CFD wind field simulation, this study provides a reference for the architectural layout planning in residential quarter.
Through the CFD simulation, it is known that when determinantal layout buildings are perpendicular to wind direction, buildings in upstream of airflow may prohibit the wind field of buildings in downstream, which furthest help the building to adapt to the requirements of wind-resistant in winter in residential area.
The pollutant concentration distribution of three kinds of layouts including determinantal layout, oblique column type and alternate layout can be known through CFD simulation.
Research on visualization of point-pollution source diffuseness simulation [J].

This approach was validated by comparing the simulation results with computational fluid dynamics (CFD).
A good qualitative match between the expected value and simulation results was observed, indicating that the design method is feasible and reasonable.
CFD Verification High fidelity CFD simulation was carried out for the performance verification.
Fig. 6 Results of the blade’s shape Fig. 7 CFD results of the rotor’s and As can be seen from the CFD results, is about 40% from 4.5 to 5 of TSR value, which could be an acceptable result.
References [1] Janajreh.I, Talab.I, Macpherson.J: Numerical simulation of tower rotor interaction for downwind wind turbine.

CFD modeling of the fast pyrolysis of coal in cold flow fluidized bed Anning Zhou 1,a, Tieshuan Zhang 1,b, Xiubin Ren 1,c, Lizhen Zheng1,d 1School of Chemistry and Chemical Engineering, Xi’An University of Science and Technology, xi’an710054, China azhouanning2004@yahoo.com.cn, bshuan.2008@yahoo.com.cn, crenxb@xust.edu.cn Keywords: CFD, Gas-solid flow, Drag model Abstract.
On the basis of the cold test data, the CFD model has been built.
In the simulation, the numerical method for the solution is the finite volume method.
CFD modeling of a countercurrent staged fluidized bed, 2008(137):664-676
[8] Tsuji, Y., Kawaguchi, T. and Tanaka, T., Discrete particle simulation of two-dimensional fluidized bed.

So default value is chosen for the parameter selection of the simulation process.
Analysis of calculation results by CFD The integral pressure contour results of the double nozzle flapper valve by CFD simulation is shown in Fig.5.
The simulation results can be seen that the highest velocity of the fixed orifice is about 150m/s.
Conclusion Application of CFD software with the orthogonal test to the simulation of the internal flow field of the double flapper-nozzle servo valve, the variation of the velocity and pressure flow field can be seen.
Based on Fluent double flapper-nozzle servo valve flow field visualization simulation, J.

The simulation of wave influence on ship hydrodynamics by using CFD is gaining increasing attention in recent years.
The usefulness of CFD simulation will be increased when these unsteady characteristics can be predicted with sufficient accuracy by improved techniques.
The comparisons among the CFD simulations, experimental data of the Wigley model from the results of Delft University of Technology and the theoretical solution of potential flow are presented in this section and illustrated in Figs. 2 and 3.
The transfer functions of heave and pitch by CFD are close to the measured one.
Unsteady RANS simulation of the ship forward speed diffraction problem.

., Shanghai, China ayanglianqiao@shu.edu.cn, bjhzhang@staff.shu.edu.cn, choogez@gmail.com Keywords: Numerical simulation, MOCVD, CFD, GaN-based LED Abstract.
CFD was used for the mathematical solution of the fluid flow, temperature and concentration fields.
The numerical simulation results show all the fields distributions were in an acceptable range.
Further more, experienced numerical simulation can also be used during the optimization of process [5, 6, 7].
For the mathematical solution of the fluid flow, temperature and concentration fields, the commercialized computational fluid dynamics (CFD) based solver-Ansys-FLUENT was utilized.

Computational fluid dynamics (CFD) that take the place in parataxis with theoretic and experimental research becomes important numerical simulation method to research on fluid flow and is applied to project practice extensively.
Through long-term practical application, it was proved that CFD can obtain satisfactory results to solve single-phase flow in pipeline[5,6].
Finally, simulations have been conducted to fixed duct diameter D=10mm, branch length 4D meshes[8] .
Review of commercial CFD softwar(Journal of Hebei University of Science and Technology, 2005, 26(2):160～165)
CFD Computation of Pressure Loss of Single and Dual-Chamber Resistance Mufflers (China Mechanical Engineering, 2006, 17(24):2567 ～ 2572)

Success rate of the first sample’s trial-manufacture is greatly improved by using CFD simulation experiment in the process of design.
Development cycle was shortened and the cost was reduced by using CFD simulation experiment, which could provide a further reference for two-stage superheated steam trap design.
Numerical Simulation Calculation and Analysis of Results.
Because of CFD simulation experiment was utilized in the design, flow resistance coefficient of two-stage superheated trap could be calculated accurately.
CFD Modeling of Globe Valves for Oxygen Application. 16th Australasian Fluid Mechanics Conference Crown Plaza, Gold Coast, Australia, pp.1356-1363, December 2007