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The present study aims to analyze a new type PHE—double chevron-type PHE with 3D CFD mode from their heat transfer characteristics and resistance characteristics, as well as their internal flow field and temperature field. 2 Simulation Preprocessing, the primary step of the CFD simulation was done by ICEM CFD13.0.
The final step in CFD, the post-processing was carried out to refine the simulation data for visualizing the vector plots, contour plots and particle tracking.
The simulation was solved using RNG k–e turbulence model.
The simulations were carried in a Pentium 8 work station with 12 GB RAM.
Each simulation took approximately 37 h to converge with a criterion of 1×10-5.

In the present work, the commercial CFD code FLOW 3D™, has been used to simulate the mould filling and solidification during the LPC process.
Such variables can be easily optimized using simulation techniques.
The present study uses FLOW 3D™, which is a finite difference method (FDM) based commercial computational fluid dynamics (CFD) code for analysing fluid flow and heat transfer occurring throughout the LPC process.
Initial and Boundary conditions The pressure sequence used for the simulation is depicted in Figure 1(b).
For solidification simulation only the energy equation is solved including phase change.

New blade 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.
Powers of new design blades produce from ANSYS/CFD and comparisons with original blades are shown in Table 5 and shown in Fig. 8.
Flow lines with rotor speed 630r/min and wind speed 5.5m/s produced from CFD for both models of blade are shown in Fig. 6 and Fig. 7.
Simulation of wind turbine blades pre-bending technology [J].

Simulation and Analysis of the Temperature Rising for Cylindrical Power Batteries LIANG Peng1,a, LI Maode1,b 1College of Mechanical Engineering, Tongji University 4800 Cao-an Road, Shanghai 201804, China aliangpengtj@hotmail.com, blimaode@tongji.edu.cn Keywords: power battery, temperature rise, internal resistance, simulation Abstract.
By carrying out necessary experiments and using CFD simulation tool we get a better battery temperature rising curve and contour of internal temperature distribution under different operating conditions.
To adjust the internal heating rate according to the fitting curves above, the user-defined function (UDF) built in CFD simulation tool FLUENT can be activated to help.
TEMPERATURE RISING SMULATION By using CFD simulation tool FLUENT we simulate the battery transient heat transfer process and get a set of temperature profiles at the center of the battery under different discharge rates(1.0C, 2.0C, 4.0C) and heat dissipation conditions(h =5 W/m2·K, 15 W/m2·K, 30 W/m2·K), and suppose batteries are fully charged at initial state.
Variation trend of internal resistance is observed and implemented into simulation.

The CFD simulation serves for analysis of the fluid flow around the profile and to evaluate the results for the static and dynamic pressure values.
Then a two-way-FSI, the calculated results are continuously interchanged between the CFD and FEM analysis tools .
For the CFD analysis an incompressible, transient flow simulation was established using FLUENT, which is one of the major CFD solvers integrated in the ANSYS Workbench.
Accordingly, the necessary computing time is large compared to an conventional stationary CFD analysis.
To reduce computation times, the RANS (Reynolds averaged Navier-Stokes equations) k-ε model was used in the CFD simulation.

CFD software ICEPAK is used in the report to make a numerical simulation as well as a simulation analysis of the injection molding machine controller and get the temperature contours picture, and then LABVIEW software is used to measure temperature variation with making program.
CFD software ICEPAK is used in the report to make a numerical simulation as well as a simulation analysis of the injection molding machine controller and get the temperature contours picture, and then LABVIEW software is used to measure temperature variation with making program.
Fig5: Test process picture Fig.6: Temperature curve Because of the related factors, from Figure 7, we can see the highest temperature is about 86 degree ,it is close to 90 degree of software simulation, so it proves correctness of the simulation software of ICEPAK software, it also confirms that the temperature of  the product in the company   is too high in the long run, and it also provides the foundation for the company to improve product structure.
Summary After the thermal analysis and test, it proves correctness of the simulation software of ICEPAK software, it also confirms that the temperature of the product in the company   is too high in the long run.
LIU, Application of Thermal Simulation in the Structural Design of Electronic System[J]. electronics process technology,2006, 27( 3) : 165-181

The Simulation and Analysis on Leakage Flow Rate of Plunger Pair of Plunger Water Hydraulic Motor Ze–yin SHAN 1,a, Rui–bo YUAN 1,b* , Chao LI1,c 1Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China a799853229@qq.com, b Kmust_yrb@163.com, c528474052@ qq.com Keywords: Plunger water hydraulic motor, Plunger pair, Leakage flow rate, CFD analysis of flow field Abstract.
Theoretical calculation and simulation results of plunger pair are obtained.
CFD analysis of flow field of plunger pair Plunger pair is the key in hydraulic motor friction pair.
So the accuracy of the simulation results is very high.
Simulation study of axial piston pump with flow characteristics based on CFD[J].Chinese Hydraulics & Pneumatics, 2013, 9

But it also brings a series of problems in urgent need of further study, such as the CFD analysis of the ECID as well as its impact on the movement of gas mixture.
The quality of grid will directly influence the CFD simulation process and is essential for the transient simulation.
(a) (b) Fig. 3 a) Grid for the static simulation b) Grid for the transient simulation Boundary Conditions.
Static Simulation Results and Analysis Through the static simulation, we can study the flowing features of the ECID.
Sopian: Multi-objective Optimization of Combustion Process in a Compressed Natural Gas Direct Injection Engine using Coupled Code of CFD and Genetic Algorithm (SAE Press, USA 2007)

With the rapid development of computer technology, computational heat transfer and computational fluid dynamics (CFD) have improved steadily.
In order to facilitate the simulation, a cuboid is taken as the research space.
Initial conditions and simulation parameters are shown in Table 1.
By simulation, the relationship between velocity and outlet temperature of smoke and water is shown in Fig. 4 and Fig. 5 respectively.
With the simulation results, experiment can be taken to delve into the characters of fluidized-bed heat exchanger.

CFD simulation was done using STAR CCM+7.04.006 (64-bit version) software.
Table 2 summarizes the properties of mesh used in author’s CFD analysis.
The skin friction coefficient is obtained from CFD analysis.
For example, Ref. [2] shows that their APG flow has the least skin friction, however the APG section in this simulation has the largest skin friction.
Acknowledgements The authors would like to thank UKM-Perodua grant for the development of the car and FRGS/1/2013/TK01/UKM/03/1 for detailed CFD simulations.