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CFD Numerical Simulation on Swirl-flow Combustion in Freon Decomposition Burner* GAO Hong1,a, NING Ping1,a**, ZHANG Di1,a, LIU Tian-cheng1,a, WANG Shibo2 1Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650093,Yunnan Province,China 2Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093,Yunnan Province,China aGaohong208@hotmail.com ** Corresponding author.
E-mail Address: ningping58@sina.com.cn (NING Ping) Keywords: Burner; CFD; Vortex Flow; Freon Decomposition Abstract.
The different burning ways in the burner were simulated by the way of numerical simulation of CFD（computational fluid dynamics）.
So the Eddy-Dissipation model(EDM) is the most appropriate to the numerical simulation.
The commercial CFD software – Fluent 6.3 was used to solve the model.

The corrected aerodynamic parameters can then be compared to the CFD results.
The revised aerodynamic coefficients were subsequently compared with the CFD simulation results.
(2) CFD Simulation.
A further advantage of CFD is the convenience of flow visualization.
Flight Trajectory Simulations and Comparison.

Therefore, it is necessary to take numerical analysis to flow field of recoil system and kinetic problem of recoil and counter-recoil based on computational fluid dynamics (CFD) theory.
Research on recoil mechanism based on the CFD theory The internal flow field of recoil mechanism has been numerically simulated with using CFD theory by a lot of people to study the complex process of media flow inside recoil mechanism and a variety of factors impact the performance of recoil mechanism.
Based on the CFD,Zhou Cheng[6] created a 3D incompressible and viscous model under unsteady condition simulating the turbulent and solid particles movement in the flow field.
Numerical Simulation of Flow Field in A Gun Recoil Mechanism[J].
Flow Field Numerical Simulation and Erosive Wear Prediction of Artillery Recoil Brake[D].

The CFD method was used in this paper for numerical simulation of the aerodynamic performance for wind turbines' blade wheel at rated wind speed.
The reliability of this numerical simulation is inspected in this paper.
There are mainly momentum - blade element theory, vortex tail model and the CFD numerical simulation[1].
Fluent, the CFD software , was used in this paper for numerical simulation of the aerodynamic performance for wind turbines' blade wheel at rated wind speed.
CFD numerical simulation Computational fluid dynamics is a new and independent discipline based on classical fluid dynamics and numerical calculation.

Based on CFD software, Navier-Stokes equations, Sparlart-Allmaras turbulence model and the structure mesh method, the whole flow passage of Francis turbine were 3-D numerical simulated.
Introduction In recent years, with the development of the computer and CFD technology, 3-D numerical simulation are being applied to turbine system design and modification.
According to some specific hydropower station, To take the numerical simulation method to find the old turbine problem, On this bases improvement should be taken,then to prove its effectiveness by numerical simulation , this can save time, improve the computational efficiency [1~2].
Using Navier-Stokes turbulent equations and Sparlart-Allmaras turbulence model, numerical simulation of the internal flow field was done.
Computational fluid dynamics (CFD software analysis - principle and application ) [M].

Pipe reactor simulation of biological growth was investigated based on computational fluid dynamics (CFD) and reaction dynamics in single-phase laminar incompressible flow with the open-source software, OpenFOAM.
Introduction Computational fluid dynamics (CFD) is a very flourish field in the last decade since the software of CFD becomes more and more popular in the engineering.
But, CFD is limited in chemical engineering in a way because mass transfer and reaction have not been combined with CFD properly at present.
And the reaction combined with CFD was summerized by R.
OpenFOAM is a free, open source CFD software package produced by OpenCFD Ltd.

TeleFax: (55) (34) 3239-4188, email: masbarrozo@ufu.br, kassiagsantos@gmail.com Keywords: CFD, 3D, spouted bed, simulation, power spectrum.
One of these techniques has been the CFD simulation.
In this paper, the spouted bed regime flow was investigated using experimental pressure fluctuations and power spectrum and numerical simulations using the three dimensional (3D) Eulerian multiphase CFD model using the Fluent 6.3.26 software.
Conclusions In this paper, the different flow regimes were investigated using the pressure fluctuations and power spectrum experimental data, as well, CFD simulation by a three-dimensional (3D) Eulerian multiphase model using soybean particles.
It was possible to foresee by 3D CFD simulation the minimum spouting flow rate and pressure drop with small deviations (0.35% and 2.07% respectively) in relation to the experimental data.

Along with the development of computer capability and CFD (Computational Fluid Dynamics) technology, the numerical simulation of multi-phase flow has been applied more widely in recent years [2-4].
Here a CFD method is used to attempt to make a three-dimensional numerical simulation in order to explore the flow pattern inside the cavity of the SLG modifying machine.
The CFD software-FLUENT has been used to carry out the three-dimensional simulation of gas-particle two-phase flow.
•The non-uniform velocity field, pressure field, particle concentration and moving trace are obtained from the simulation results by means of CFD software FLUENT, which is helpful to reveal the flow characteristics in the SLG modifying cavities.
Brennan, et al.: A comprehensive CFD model of dense medium cyclone performance, J.

CFD Analysis of Performance of a Reconstruction Plan of Smoke Control System in Metro Station Shuxia Yana, Xiping Wub and Dong Wangc College of Mechanical engineering, Tongji University, Shanghai, 20092, China a01luckyshuxia_yan@tongji.edu.mail.cn, bwuxiping@tongji.edu.mail.cn, cyuanziwd1985@163.com Key words: Pipeline Arrangement; Smoke Management; Metro Station; CFD Simulation.
The smoke extraction performances of the original plan and the reconstruction plan are analyzed with the CFD numerical simulation.
In this paper, the smoke control performances of the original plan and the alternative plan are compared in CFD numerical simulation method, and the results verify the feasibility of the reconstruction plan.
Axis of platform Air supply pipe Exhaust pipe Stair New valve 1 New combine pipe and valve 2 Air supply pipe Fig.1 Schematic drawing of air duct in platform CFD Simulation Numerical Method.
In this simulation, the case that other materials in platform are ignited is not considered.

A CFD based model is proposed for predicting fouling process in spiral-grooved tubes.
Thus, numerical simulation, as an alternate method, has interested many researches from 1960s.
Validation of the calculation model To validate the CFD based fouling simulation method, a series experiments was carried out.
Conclusion In this work, CFD model was coupled with fouling model to predict fouling process in spiral-grooved tubes.
The simulation results were validated using experimental data.