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CFD simulation was enabled to reduce the number of trials during experimentation.
The CFD model includes six surfaces: top, bottom, back, side, and front.
Meshing geometry Meshing notably affects the accuracy of CFD simulation results [23].
A CFD model was employed to perform a steady-state simulation under the same conditions as the experiment.
Insulating heat transfer at 298 K, 303 K, 308 K, and 313K 3.3 Optimum of insulation thickness Fig. 13 illustrates a CFD simulation of the insulation thickness for the effective cooling process inside the cabinet.

Numerical Simulation on Aerodynamically Generated Injection Nozzle Noise Jianping YU1, a, Hong Zhu2.b, Shuping Chen1, b and Xiaosen Zhang 1, c 1 School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China 2 Environmental resources Institute，Northwest Research Institute of Mining & Metallurgy ayujp@lut.cn, bzhh973201@163.com, cChengsp@lut.cn, dzhangxs@lut.cn Keywords: Numerical simulation, Injection Nozzle, CAA, Abstract.
Hence the results based on the CFD method are reliable and can be used to industrial applications.
The main purpose is verifying the accuracy of CAA theory model by comparing the simulation results and experiment data.
The comparation of noise between the simulated result and tested result :Fig.8 and Fig.9 shows the contours of noise which is calculated by numerical simulation.
Hence the results based on the CFD method are reliable and can be used to industrial applications.

With the development of computational fluid mechanics and related fluid mechanics simulation software, the fluid mechanics simulation technology has gradually been used in sliding bearing performance analyses.
So-called CFD (Computational Fluid Dynamics) technique refers to Computational Fluid Dynamics [2].
At present, commonly used CFD software include: Fluent, CFX, star- CD, etc.
Fig.2 Model of lubricant flow field Simulation analysis of lubricant pressure field.
XU: CFD simulation and engineering examples(People Post Press Press,Beijing 2011).

The analysis is carried out using CFD software using k-ε turbulence model.
Different widths had been investigated for different inlet volume flow rates by numerical simulation.
In this article the influence of different pitches of helical tape and different tape heights ontemperature distribution are simulatedand analyzed by means of CFD software.
All of the simulation is carried out at the same inlet conditions with Reynolds number around 4.5 × 105based on the inletdiameter of the diffuser.
Diffuser Configuration Helical Tape Pitch Length, Y [mm] Helical Tape Height, H [mm] A 20 5 B 25 5 C 30 5 D 30 10 E 30 15 Computational simulation.The simulation is carried out using Numeca Fine/Open v.2.12-2 applying standard k-ε model.

The Flow Analysis of Automotive Power Steering Gear Assembly Based on Fluent Kai CHENGa, Tangzheng LI b, Guangming LIc Changchun University of Technology, Changchun 130012, China a chengkai@mail.ccut.edu.cn, bboytangzheng@163.com, cgmli@mail.ccut.edu.cn Keywords: Automotive power steering control units, Flow field analysis, CFD model Abstract.
CFD Model Structure Geometry Model.
Fig. 1 Automotive power steering gear The numerical simulation of the key flow channel and the 3D geometric model in Catia software are shown as Fig 2.
The Export Flow Field Simulation of Automotive Redirector under the Standard Atmospheric Pressure.
The Simulation Field of Automotive Redirector as the Export Connected Pumping.

Applying computational fluid dynamics method (CFD), we can take numerical simulation for the flow around the propeller.
On the other hand, the hydrodynamic performance of the propeller is calculated based on ANSYS ICEM CFD software, which is a powerful pre-processing software and it can provide high quality meshes for the mainstream CFD software(FLUENT CFX etc), making the result more accurately[4].
Propeller CFD Model Geometric Modeling.
Pressure Contour: In the CFD-Post, making advance coefficient of 0.452 (the corresponding speed of 10 knots) is an example to analyze pressure nephogram of propeller, as shown in figure 6 and figure7 respectively.
[4] Fujun Wang: Computational Fluid Dynamics Analysis—The principle and Application of CFD Software (Tsinghua University Press, Beijing 2004).

The temperature and flow field were calculated by CFD method and motion of particles with different diameter (100 μm, 10 μm, 0.1 μm and 0.01 μm) in rf plasma deposition process were studied.
The objective of the present study is to investigate movement of particles with different diameter in rf plasma deposition process by CFD calculation method, in order to understand the deposition behavior of particles and give reference to improve the deposition process.
(3) Computational Grid The CFD software package FLUENT 6.3.26 was used for calculation. 3-D simulation model was established according to the physical model.
(4) Simulation Conditions and Boundary Conditions The input parameters were chosen as typical conditions as shown in Table 1.
Table 1 Simulation conditions Content Inlet Angle(◦) Inlet Velocity (m/s) Inlet Temperature(K) Plasma torch 30 4.34 1800 Feeding pipe 67 1.5 300 The plasma pipe and feeding pipe inlet were set as mass flow inlet boundary condition.

Introduction A main task in Wind Engineering is the simulation of FSI analysis.
They are well suited for data fitting in any multidisciplinary simulation and widely used in different field such as geology, topography, iatrology [10,11].
(a) CSD Mesh: Nnod=861, Nelem=1600 (b) CFD MESH: Nnod=1271, Nelem =2400 Fig.1 CSD and CFD mesh on FSI boundary Based on Eq.13 the analytical solution of displacement on CSD and CFD mesh on FSI boundary can be calculated and the displacement contours are drawn in Fig.2.
(a) CSD Mesh (b) CFD MESH Fig.2 Displacement contours on CSD and CFD mesh of analysis solution The displacement numerical solution of CFD mesh can be calculated based on the displacement analytical solution of CSD mesh using CRBF-FSI method.
(a)ri /lmax=1 (b)ri /lmax=1.5 (c)ri /lmax=2 (d) (ri /lmax=4) (e) (ri /lmax=6) (f) (ri /lmax=8) Fig.3 Displacement contours of fluid mesh for different compactly supported radius The relevant coefficient between the displacement results of analysis solution and numerical solution on CFD mesh and also the solution time for different compactly supported radius are listed in Tab.1.

The CFD model is then validated by the analytical solution of the slider bearing problem.
(2) As no analytic solution exits for the geometry of the machine hammer peened surface structure, a numerical simulation based on CFD is set up.
Figure 2: Illustration of the slider bearing geometry (a) and validation of the CFD model (b).
As it can be observed, the CFD model corresponds very well to the analytic solution.
The setup of the CFD model is, therefore, considered valid.

Simulation Research on Aerodynamic Characteristics of Vehicle under Steady Crosswind based on XFlow Shanling Han1, a, Zhiyong Li1, b, Jinbin Li1,c , Ruxing Yu1, d 1 College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, P.R.China aS.L.HAN@163.com, blzy5552270@163.com, c2008zibolijinbin@163.com, dyrxheroo@163.com, Keywords: Steady crosswind, Aerodynamic characteristics, XFlow, Simulation Abstract.
E.Guilmineau et al have used CFD software with the relative motion theory to simulate the yawing motion and gained how the surface pressure coefficient changed[3].
By direct calculation of the fluid density and velocity, the influence of statistical noise on the simulation results is eliminated.
The Xflow software is a new generation CFD software which developed by Next Limit cooperation, using patented, particle-based, non-matching method that can easily handle the traditional complex problems.
Xflow overcomes many drawbacks of the traditional CFD method, it adopts the dynamics solver of LBM[6], which is characterized by modern large-eddy simulation model (LES) modeling capabilities and is equipped with advanced non-equilibrium isolated model.