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Using the VOF model , the jet shape of the nozzle will be simulated through a commercial CFD software 'FLUENT'.
The CFD simulation results shows that the jet shape of the nozzle is oscillate in a fixed period.
Computational Procedure A commercial CFD software 'FLUENT' has been used for the simulation.
Using the VOF model, the nozzle jet shape can be simulated by CFD software.
Wang: Numerical simulation of the wake flow behind trapezoidal bluff bodies.

This study reports a numerical CFD study concerning the effect of frost thickness on the heat transfer performance of a vertical pipe.
The simulation for frost formation carried out with coupling to a commercial CFD code(CFX).
The CFD simulation offers the possibility to predict frost formation within vertical geometries.
Modeling and Simulation In the present study, to simulate the vertical upward pipe of cryogenic LNG vaporizers used commercial CFD code (ANSYS 13.0 CFX).
Starting with an initially calculated frost thickness, the CFD simulation computes the fluid motion for one fluid cycle based on fixed condition.

Study on Influence Law of Urban Architectural Structure on the Automobile Exhaust Diffusion Based on CFD Yong Zhang1,2,a, Zhengqi Gu 1,2,b, Zhen Wang 1,c and Yong Yu 1,d 1.
(4) Considering the flow within the simulation area as incompressible fluid.
Then the fluent module of Ansys12.0 software is selected to execute the three-dimensional CFD simulation.
Summarized as follows: (1) The numerical simulation method of exhaust diffusion for 3D urban can be used to urban crossroads automobile exhaust diffusion simulation, prediction and assessment.
In Chinese [4].Zhang qiang.CFD Numerical Simulation on vehicle exhaust gas.

Using CFD numerical simulation to calculate impedance of the room to obtain exact exhaust air volume of each layer when discharges separately.
So utilize method of CFD numerical simulation to calculate room impedance is suitable.
This CFD software, introduced by FLUTNT company in 1983, is one of the most full-function, most applicative, most widely applicable CFD software.
Then set simulation parameters.
Table 1 and Figure 2 to 4 show results of simulation.

The Performance Simulation and Optimization Research on Intake Port of Locomotive Diesel Engine CUI Hongjiang, LI Minghai and GUAN Ying School of Traffic and Transportation, Dalian Jiaotong University, Dalian, Liaoning Province, China randycui@163.com Keywords:diesel engine; intake port; CFD Abstract.In order to manufacture high quality intake port with bigger discharge coefficient and appropriate swirl ratio for diesel engine performance improvement, intake port tests and CFD simulation method were combined together to optimize its structure.
The three-dimensional CAD model of intake port was built and was putted into AVL–FIRE platform to do CFD simulation with appropriate turbulence model and calculation method.
The detailed air flow information was obtained by CFD simulation.
This research shows that CFD simulation is a powerful method to design diesel engine intake port; air flow condition is complex in the intake port; intake port structure optimization can increase the discharge coefficient and improve the air flow condition.
The intake port simulation analysis is always regarded as an adiabatic question.

Ltd, Hang zhou, China azhangqunfeng@263.net Keywords: Hydro-generator, Ventilation system, Numerical simulation, Pressure loss Abstract.
The simulation results provide a scientific basis for optimization of ventilation system.
Simulation Method Governing Equations.
The grids of different parts were generated with ICEM-CFD.
Turbulence Modeling for CFD.

Turbulence Kinetic Energy Performance on Wind Turbine Blade Using CFD Norzelawati Asmuin1,a, M.R.
This paper discuss the result obtain from simulation in CFD using CFX on NACA 4412 and NACA 4415.
The geometry was design in Solid work and imports to CFX for simulation process using RNG k-e turbulence model.
Conclusion The simulation on wind turbine blade has been done using CFD.
The drag coefficient , lift coefficient and turbulence kinetic energy are determine by implementing CFD software using CFX.

In flow separation region, there is different between CFD and experimental data, the flow attachment points of simulation result is far behind of experiment data, and the separation bubble length is greater than the experimental data.
In table 1, it shows the separation point and attachment point comparison between CFD method, experimental data and simulation results in reference [7].
As can be seen from the figure, the separation point position based on CFD method is agreed well with experiment data for minor error of less than 2%, but for the attachment point, the CFD method excessively predict more than 20%.
Further exploring CFD-based gust response and gust alleviation.
CFD Validation of Turbulent Separation Control on a 2D Hump (NASA Langley Workshop Validation: Case 3), AIAA 2005-5013

ANSYS software is selected to be used to run the simulation and analysis.
Researches by [6-8] have proven that there are reasonable agreements between experiment and CFD simulations.
All the modified equation can be found in Computational fluid dynamic (CFD) software such as ANSYS.
Methodology The study of air flow inside the classifier based on the lab-scale classifier design data, the approach usually divided to three aspects which were geometry creation, grid generation and flow simulation by using CFD software.
Wilcox, Turbulence modeling for CFD, DCW Industries, La Canada, California, (1998)

3D Numerical Simulation of Inner Flow in A Mixed-flow Stirred Reactor Hui Li1, a, Rui-li Wang1,b 1Huang He Science and Technology College, Zhengzhou, Henan, 450063, China a549138183@qq.com, b63876193@qq.com Keywords: mixed-flow, stirred reactor, fluent, simulation Abstract.
The method of the computational fluid dynamics (CFD) is to adapt to this trend and is developing into a new design tool.
Simulation Results The macroscopic flow field.
Although the method of CFD can not be completely replaced by the experimental method at this stage, you can analyze and display the phenomenon occurred in the flow field through the CFD software.
Sharp, “Integrated Experimental and Computational Approach to Simulation of Flow in a Stirred Tank,” Chem.