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In this paper, three kinds of inner supports which are common in power plants are simulated by using computational fluid dynamics(CFD).
Referring to the three kinds of inner supports in the flue pipes which upstream electrostatic precipitator used in a coal-fired power plant, gas pressure and velocity distribution in flue pipes using computational fluid dynamics (CFD) are investigated in this paper.
Guidelines for further velocity distribution and pressure loss are provided based on the insight gained from the simulation results.
Simulation CFD implementation.
Velocity inlet and pressure outlet are the boundary conditions And inlet velocity is 12 m/s in this simulation.

It is necessary to deeply research on the influence of moisture variation to the combustion of MSW in the grate incinerator actually operating in Guangzhou by means of CFD.
Numerical Simulation of Grate Firing Systems Using a Coupled CFD/discrete element method (DEM)[J].
Numerical simulation of grate firing systems using a coupled CFD/discrete element method (DEM)[J].
Simulation of channel growth in a burning bed of solids[J].
Numerical Simulation of Large-scale Municipal Solid Waste Incinerator[J].

Boundary Conditions In the steady-state simulation process, the flow of coolant in the water jacket is adiabatic, viscous and incompressible turbulent flow.
Calculation Results of CFD Fig.3 shows the traces of the internal coolant distribution and Flow in water jacket.
Computational Fluid Dynamic( CFD) Analysis of a Six Cylinder Diesel Engine Cooling System with Experimental Correlations[C].SAE Paper 941081
[5] Xunjun Liu,Qun Chen,Jun Li.CFD analysis of diesel engine cooling system[J].Transactions of CSICE.2003,2(2):125-129
Numerical simulation on flow and heat transfer of cooling system in a six-cylinder diesel engine [J].

The model equations were computed using the commercial CFD codes ANSYS Fluent 14.0 [2].
Validation of the CFD Model The performance of the CFD model was assessed by comparing the simulation results of the model equations with experimental data from the wind tunnel experiment conducted by a working group of the Architectural Institute of Japan (AIJ) on the flow field around the model of a single high-rise building, aimed at formulating guidelines for the CFD prediction of the pedestrian wind environment around buildings [3].
Main Simulation The two-building configuration simulated consisted of a four-storey building A with a constant height of 12 m and a second building, B, located downwind.
Carissimo, (Eds.), Best practice guideline for the CFD simulation of flows in the urban environment, COST Action 732, quality assurance and improvement of microscale meteorological models, Brussels, COST office, (2007)
Huang, Optimizing layout of urban street canyon using numerical simulation coupling with mathematical optimization, Journal of Hydrodynamics, Ser.

Figure 2.Mesh when the piston at TDC Import the star .cel and star.vrt files from ICEM-CFD into STAR-CD software to generate dynamic grid.
The engine speed for simulation is always 1200r/min.
Then we compare the simulation result with the text data foreign experiments got.
Figure 4.Comparison between simulation result and text data Calculation Result and Analysis Simulation conditions.
Figure 10.Variation of the emissions for various gas injection timings Conclusions In this paper, we use CFD simulation technique to create the computational model for the diesel engine fueled with pilot-ignited directly- injected natural gas.

Numerical Simulation of the Laminar Flow Field in Stirred Tank with Double layer Combined Impeller Stirring Eccentrically* Yingna Liang1, a * 1Liren College, Yanshan University; College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China aliangyingna@ysu.edu.cn Keywords: stirred tank; double layer combined impeller; stirring eccentrically; computational fluid dynamics(CFD); laminar model Abstract: Computational fluid dynamics (CFD) method was applied to study the flow field in cylindrical stirred tank mixing non-Newtonian fluid with double layer combined impeller of upper-straight-blade and lower-inclined-blade.
The CFD method was applied to study the flow field in laminar flow stirred tank in this paper.
[3] Guozhong Zhou, Yingchen Wang, Litian Shi, CFD study of mixing process in stirred tank, J.
[7] Kei Sakakura, Takeo Shiojima, Satoru Yamamoto, Numerical simulation of double helical ribbon agitators using three-dimensional DEM simulation, J.
Zhu, Numerical simulation of turbulent batch mixing in a vessel agitated by a rushton turbine, J.

The computational fluid dynamics (CFD) is combined with the computational solid mechanics (CSM) into the one-way fluid-solid interaction.
The aerodynamic force calculated by CFD is loaded on the structure, and the structural deformation and stress distribution are calculated using CSM.
Its simulation of anisotropic composite material can be accurate to some extent.
Flow field simulation 3.1 Grid construction ANSYS ICEM CFD is used to generate unstructured grid.
The flow field simulation of a wind turbine can be divided into outflow field and rotational flow field.

Kim researched the performance and structural safety of 50 kW ocean current turbine rotor by CFD simulation and unidirectional FSI analysis[3].
Steady numerical simulation can be performed using CFX to get the loads in the fluid field.
CFD analysis of the HATCE turbine The configurations of the selected HATCE turbine are shown in Table 1.
According to Ref.[5], the numerical simulation was performed with the MRF model using the ANSYS CFX.
Numerical simulation of fluid-structure interaction basing on the ANSYS[D].

Based on the classical theory of incompressible flow, CFD software FLUENT is used to simulate and analyze the flow characteristics of water hydraulic slide valve.
In order to design an applicable water hydraulic servo valve, it's necessary to study the flow characteristics of the slide valve with CFD software FLUENT.
The accuracy of CFD simulations has been confirmed in many occasions [3, 4], and the uses of simulations can avoid the constructions and testings of prototypes, as a result, the R&D cost and time are reduced.
Boundary Conditions of Simulation.
The flow coefficients get from simulations with different boundary conditions are almost equal, so the simulation is correct.

A CFD simulation of the model is done based on the following steps.
In flow simulation for anode and cathode side regarding to flow characteristics the laminar and standard models are used, respectively.
In CFD modeling pressure velocity coupling is achieved by SIMPLE algorithm.
Therefore, first a 3D CFD model of anode and cathode of the cell is investigated.
In flow simulations the cross section in CFD model is for clear part without porous medium, the diffusion zones are parallel with flow direction and have no sensible effects on pressure loss calculations for flow passing through the clear channels.