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RESEARCH OF FINITE ELEMENT SIMULATION FOR DIESEL INTAKE PORT ZHANG LIANG-FENG a, CHEN DUO b and LIU MING-WEIc Hunan Institute of Engineering, China a lfzhang@hnie.edu.cn, bduochen@hnie.edu.cn, clmw662000@126.com Keywords: Diesel engine; Intake port; Finite element; Numerical simulation Abstract.
Because of the characteristics of 3D turbulent transport properties of flow field in intake port, we must choose a proper turbulent model for numerical simulation.
Finally, we use interface between software to import 2D model (Fig .1) into ANSYS software for CFD analysis.
[3] Zhang Liang-feng, Modeling and CFD analysis of air intake for SL1126 diesel engine spiral [D].Hunan University, 2005, 01
[5] Connor J.F., McKinley N.R.CFD Simulation of in-take Port F10w Using Automatic Mesh Generation: Comparison with Laser Sheet Swirl and LDA Mea-surmounts for Steady Flow Conditions [C] SAE Paper 980l 29.

Computational Fluid Dynamics CFD Simulation.
In this work, CFD-ACE multi-physics solver (ESI-CFD Inc., Huntsville, AL) was used to simulate the flow and mixing dynamics of the spiral micro-mixer designs.
Fig 1: Results Monitoring Fig 2: Mask Layout CFD Simulation on mixing process incompressible flow has been described in literature by numerous authors [8-10] and similar settings were used in the computation environment.
Because of this the importance of improvement in computational modeling and simulations is unquestionable.
Beskok, "Micro Flows - Fundamentals and Simulation," Springer-Verlag New York, Inc, 2002

a jyhdongl@cc.ncu.edu.tw, b973402002@cc.ncu.edu.tw,candikacitra@yahoo.com, d poet_poet3@yahoo.com Keywords ：Permeable pavement, air temperature, DesignBuilder Abstract: This study investigate permeable pavement utilization and its impact on air temperature by using site measurement, statistical analysis, and Computational Fluid Dynamics (CFD) simulation.
National Central University (NCU) main library is the case study for the simulations.
The Computational Fluid Dynamics (CFD) simulation on Ginza (Tokyo) district model for the research shows that when the surface temperatures of the roads and sidewalks were reduced by 10°C, the air temperatures at 0.5 m and 1.5 m above the surface were reduced by 2.13°C and 0.73°C, respectively.
The impact of permeable pavement surface temperature on air temperature was investigated using Computational Fluid Dynamics (CFD) simulation in DesignBuilder software.
The effect of permeable pavement utilization on air temperature was simulated using Computational Fluid Dynamics (CFD) package in DesignBuilder software.

This paper presents a Computational Fluid Dynamics (CFD) model for friction spot stir welding applied to two plates made of AA5056 alloy.
Since the model is based on the CFD method, in this case the plate material was specified as a very viscous fluid, the dynamic viscosity of which depends on temperature and strain rates.
Computational Fluid Dynamics (CFD)‑Based Approach This model was made using the ANSYS Fluent v201 finite element analysis system.
Results Simulation was carried out for all sets of conditions.
Figure 3 shows temperatures and viscosity fields, obtained in simulation.

Introduction The high-speed train aerodynamic problems can be studied by means of wind tunnel test, dynamic model test, numerical simulation and actual vehicle testing [1].
The method of computational fluid dynamics (CFD) numerical simulation is used to design a support form which causes least interference, providing references for high-speed train wind tunnel tests.
Fig. 1 The scheme of a train model Fig. 2 The geometry of the train model Calculation method and boundary condition settings CFD commercial software is used for the calculation of the paper.
[5] Xifeng Liang, Hongqi Tian, Jianjun Zou: The wind tunnel tests and numerical simulation of longitudinal aerodynamic force of the traction car.
[6] Fujun Wang: Computational fluid dynamics analysis---CFD software principle and application (2004), p.127

As computational fluid dynamics (referred to as CFD) technology continues to evolve, many scholars have simulated a variety of inlets by CFD method.
A approach called N-point momentum model was proposed to describe boundary conditions of air terminal devices with CFD.
The experimental verification of numerical simulation.
N-point momentum model for indoor airflow simulation.
Simulation of a multiple-nozzle diffuser[A].

In the article, a new combination rotor profile curve of the roots compressor was designed by reviewing the relevant literatures, the 2D finite element modal was established and a transient CFD numerical simulation was performed for a roots compressor by means of dynamic mesh technique.
A new combination profile curve is presented in this article, the 2D finite element model of the roots compressor is established, and a transient CFD numerical simulation is performed by means of dynamic mesh technique in ANSYS Fluent software [3] .
Therefore, we applied dynamic mesh technique to achieve real-time simulation of inside flow field of roots compressor.
(a) (b) Fig.5 The velocity vector diagram of typical positions (c) (d) Fig.6 The static pressure nephogram of typical positions Conclusion A transient CFD numerical simulation have been performed for an inside flow field of a roots compressor in this work by means of dynamic mesh technique.
(seventh ed.)Wiley, New York (2009) [3] Fujun Wang, Beijing: Computational fluid dynamics analysis-- Principle and application of CFD software Tsinghua University press, 2004.09.

can be implemented under the same condition, making the simulation results of rotary kiln more related to practical operation conditions.
In addition to the differences inthe file formats, the grids model used by these two software are always inconsistent.Therefore, in order to carry out the thermal stress calculation, the CFD grid should be mapped to the FEA meshes,Moreover, upon the analysis of thecombustion processandgas-solidcouplingeffect by CFD, theanalogvalue of theobtained rotary kilntemperature fieldneeds to be transformed intothecorrespondingANSYSformat.
A “*.cdb” file is generated when the kiln temperature field is outputted by CFD.
During the importation of the temperature field generated by CFD into ANSYS, it automatically takes the element type as solid185 which contains a surface effect.
(In Chinese) [7] M.S.Manju,S.Savithri, Three dimensional CFD simulation of pneumatic coal injection in a direct reduction rotary kiln.

This paper used an established three-dimensional model of an engine water jacket to study, and used UDF function in the two-phase flow of the CFD, describe the mathematical model and simulation the engine at different operating conditions, and get the water jacket flow rate transfer thermal process.
Using CFD method for engine cooling water jacket flow and heat transfer, the temperature, flow velocity, vapor volume fraction, etc. can be determined anywhere on the flow, and used to guide the design and improvement of the cooling water jacket.
Hull test fluid in a simple rectangular channel boiling and simulation engine boiling critical heat flux by numerical simulation and experimental, and verify the feasibility of the numerical simulation by the test results [1].
The simulation results match with the experimental results prove that the use of CFD analysis of engine cooling water jacket is feasible [2]. 
(2) In order to make the calculation more accurate when the liquid in the CFD calculation of phase change, UDF function was used

A Numerical Study on the Influence of Grooves on Heat Transfer Performance of Wet Clutch Lei Yulong 1, a, Wen Jietao1,b , Li Xingzhong1,c ,Yang Cheng1,d 1 State Key Laboratory of automotive simulation and Control, Jilin University Changchun 130022, China a leiyl@jlu.edu.cn, bwenjietao@126.com, c whdxjx123@126.com, d youngpanada@163.com Keywords: Wet Clutch, Grooves, Heat Transfer, Numerical Simulation, CFD Abstract.
(7) CFD Model and Boundary Conditions The CFD model consists of three parts: fluid, friction material and core disc, shown in Fig.2.
The CFD enable one to obtain the details of the flow characteristic inside the grooves.
[4] Natsumeda, S., and Miyoshi, T., Numerical Simulation of Engagement of Paper Based Wet Clutch Facing, ASME J.
Miyoshi, Numerical simulation of engagement of paper based wet clutch facing, ASME J.