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aChenyong880@yahoo.com.cn, bliangxt666@126.com.cn, cZeng-jhua@263.net.cn, d13882393081@163.com.cn,eliangxt666@163.com.cn Keywords: converter steelmaking, oxygen lance, oxygen jet, numerical simulation, metallurgical effect Abstract: The lance system is one of the important link of converter.
The numerical simulation for a three-dimensional oxygen lance nozzle was carried out according to the fundamental parameters of PZH steel, the characteristics of the oxygen jet were analyzed and discussed.
Numerical simulation of oxygen lance To accurately detect each parameter and actual performance, the design lance was simulated by CFD in this paper.
Conclusions (1) The numerical simulation for a three-dimensional oxygen lance nozzle was carried out according to the fundamental parameters of PZH steel.
[2] WANG Wen-jing, ZHAO Hong-xin,PAN Yi-fang,etc,in:Numerical Simulation on Flow Behavior of Nozzle Jets in Oxygen Lance.

The reviewed works are limited to ductile material erosion and four categories: erosion mechanism, parametric studies, material removal modeling and simulation modeling.
The reviewed works are limited to ductile material erosion and four categories: erosion mechanism, parametric studies, material removal modeling and simulation modeling.
A CFD simulation of ultrahigh velocity waterjets and abrasive waterjets has been presented.
Aristomenis Antoniadis，A finite element-based model for pure waterjet process simulation，Int J Adv Manuf Technol (2007) 31: 933–940 [25] H.
Liu, A study of abrasive waterjet characteristics by CFD simulation, Journal of Materials Processing Technology 153–154 (2004) 488–493 [26] T.

Research on Numerical Simulation of Support Interference for Dynamic Derivatives at Hypersonic Flight Speeds Liu Xua, Liu Weib and Zhao Yunfeic College of Areospace Science and Engineering, National University of Defense Technology, Changsha, China anudt@sina.cn, bfishfather6525@sina.com, czhaoyf08@126.com Keywords: CFD; Hypersonic; Support Interference; Dynamic Derivative; Least Squares Abstract.
For the special experiment of dynamic derivatives, no numerical simulation of support interference has yet been systematically studied.
The numerical simulation of support interference for identification of dynamic derivatives with 7º blunted cone under the hypersonic condition was done in this paper.
An unsteady N-S equation is used for numerical simulation of small-amplitude forced simple harmonic vibration with 7º blunted cone in this paper, and a dynamic damping derivative is achieved by numerical identification.
Simulation Example of Hypersonic Missile Module In this paper, HBS (Hyper Ballistic Shape) profile is used as a verification example, and HBS profile is a module of hypersonic missile profile.

In this paper, the boiling phenomena of steam boiler under atmospheric pressure are simulated by using the UDF program of CFD software.
In this paper, Computational Fluid Dynamics (CFD) software is applied to simulate boiling flow and heat transfer phenomena in the water wall tubes of steam boiler.
�umerical simulation of boiling two-phase flow Mathematical model and numerical simulation.
In this paper, N-S equation is used in the simulation because of Knudsen nk <<0.001.
Using CFD software, the numerical simulation results can be got quickly and safely.

This paper presents a simulation study of an H-type vertical axis wind turbine.
Two dimensional CFD model using sliding mesh technique was generated to help understand aerodynamics performance of this wind turbine.
Toque of the blades could be get by simulation using FLUENT.
Simulation results Effects of the pitch angle on power coefficient.
Fig.6 Single blade torque at different pitch angle and different azimuth angle Conclusions In the study, aerodynamic performance of H-type vertical axis wind turbine was analyzed by numerical simulation.

Using the finite element method, according to the actual size, building an entity model, the finite element simulation was conducted by a series of procedures, such as meshing, loads applying and solving.
Sensitive cavity simplified diagram Solve with finite element method The FLOTRAN CFD analysis function of the ANSYS software usually includes the following three steps: Modeling, Applied load and Solve.
Building the two-dimensional entity model First, choose FLOTRAN CFD analysis function.

Through the simulation, the variations of flow field with different distance between the adjacent cylinder and different Reynolds number are investigated.
For low Reynolds number(Re=200), the flow past three infinite long cylinders with equal column arranged according to the triangle was studied [1];A review of the CFD studies about the vortex shedding flow around cylinder and flow field configuration is found[2];Large eddy simulation is used to simulate the two-dimensional flow field around the single cylinder with the change of Reynolds number[3];For multiple columns, the number of columns, column arrangement, the distance between cylinder and Reynolds number have a great influence on flow field [4-5].
Numerical Simulation of Three Equispaced Circular Cylinders [J].
Large eddy simulation of flow around two circular cylinders [J].
[6] M.Zhao, C.Liang,B.Teng.Numerical simulation of viscous flow past two circular cylinders of different diameters[J].Applied Ocean Research,2005,27(1):39-55.

Fig.2 The mesh of model Calculation methods and boundary conditions Taking into account the breeding place of mechanical ventilation airflow state in place to maintain a steady state, so this article select the calculation of the steady simulation.
RNG k-ε model is used for turbulence simulation.
In this paper, the numerical simulation of the environment in some sort of pig breeding places is carried out and the following conclusions are drawn: (1)The airflow in the vicinity of the air inlet fan speed larger maximum reach 6.09m/s, the wind speed is low in the other regions
Berckmans: A virtual chicken for climate control design: static and dynamic simulations of heat losses.
Using CFD to investigate ventilation characteristics of vaults as wind-inducing devices in building.

It has been used extensively in different fields of computational fluid dynamics (CFD), such turbulent flows, particulate flows and multiphase flows [1-4].
Intrinsic characteristics of LBM method such as parallel computation [5] and easiness in handling complicated geometries [6] make it more attractive than conventional continuum-based CFD methods.
Roux, LBM based flow simulation using GPU computing processor, Comput.
Ladd, Numerical simulations of particulate suspensions via a discretized Boltzmann equation.
Ladd, Numerical simulations of particulate suspensions via a discretized Boltzmann equation.

The fluid in this nozzle was simulated by Volume of Fluid Model through CFD.
The fluid dynamic simulation results show that diameters of nozzle opening and swirl chamber, area of spiral groove, and helix angle of the spiral groove affect the spray angle.
Fluid Flow Simulation Fluid flow simulation was conducted to describe the flowing of fluid in the swirl chamber, to analyze the effect of parameters of the swirl-core and the depth of swirl chamber on the spray angle.
Simulation Results.
Table 1 shows the simulation result of the relation between swirl chamber depth and spray half-angle.