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Therefore, numerical simulation software that simulates fire scenarios was used to model fires for fire protection engineering.
Two CFDs, or computer numerical simulation applications, were used.
Numerical Simulation Model Programs used in this study include FDS, or fluid dynamics software, PHOENICS simulation method, and beam structural strength physical models.
Multiple-mesh, sprinkler equipment, and ventilation equipment can be set in the simulation.
First discussed in 1981, PHOENICS is a mature CFD application and is widely used for computing cold and thermal fluid fields.

Finally, the strength of the train under different working conditions is verified, weakness is pointed out and suggestions based on the simulation test are given.
In above model, the factor and f could be got from CFD simulation or actual measurement.
In actual test and CFD simulation, it's known that the load frequency is lower than 10Hz, this means the weak that train body can not bear high frequency load would not appear in practice.
Conclusion By the research of aerodynamic conditions, air tightness model and train body structure FEM model are built and used into simulation.
The method is feasible, and the simulation and comparison of various loads have been finished.

According to the real size of micro airstream gyro-scope, ANSYS-FLOTRAN CFD was used to create models and work out the gas flow field and distributing in the two-dimensional chamber with different angular velocities.
Fig.3 Simplified diagram of two-dimensional sensitive cavity Finite element solving ANSYS-FLOTRAN CFD is an advanced facility to analysis the flow field of two-dimensional and three dimensional fluid [3].
Fig.5 Distribution of the flow velocities along line AB Fig.6 Relationship between the bridge output voltage and the angular velocity Conclusions In this paper, distributions of airflow velocities in the enclosed cavity of the fluidic gyroscope are calculated under the condition of different angular velocities with the method of FEA and the use of program ANSYS FLOTRAN CFD.
“Practical Engineering Numerical Simulation and Practice in ANSYS,” Northwest Polytechnical University of Technology Press, Xian, pp. 221, 1999.

To solve this problem, many researchers choose to establish the measurement turbine model by CFD methods.
Different from the traditional static simulation method, this paper directly uses the method of dynamic simulation, through UDF programming and sliding mesh structure, a dynamic simulation model of the turbine.
The Establishment of Simulation Model Problem Statement.
Fig.1 Turbine measurement devices Simulation Model.
Simulation results show that the simulation model can reflect the variation in characteristics of the turbine caused by the position and cavitation.

The effect of adoption of absorber plate with different types of fins, design modifications, CFD based optimization techniques and incorporation of storage materials have been reviewed.
Wang et al. [8] conducted experiments and developed a simplified simulation model on 10 linked evacuated tube panels of solar air heater with Compound parabolic concentrator and U shaped tube heat exchanger that produced 200 0C at higher air flow rates.
CFD analysis by Kumar and Saini [16] revealed arc shaped roughened solar air heater had overall enhancement ratio of 1.7.
Saini, CFD based performance analysis of a solar air heater duct provided with artificial roughness, Renewable Energy. 34 (5), (2009) 1285-1291
Velraj, Experimental investigation of the LHS system and comparison of the stratification performance with the SHS system using CFD simulation, Solar Energy. 13 (2014) 378– 389

João Naves de Ávila, 2121, Bloco 1K, Campus Santa Mônica, Uberlândia – MG -38400-902 aclaudiofequfu@gmail.com Keywords: spouted bed, particle velocity, CFD, measurement technique Abstract.
Studies of numerical simulation techniques and computational fluid dynamics (CFD) have become popular in the field of gas-solid two-phase flow.
Description of the Model In this work, was used the same simulation strategy adopted by Duarte et al [12].
The minimum spouting velocity calculated by simulations was about 24 m/s as can be seen in Figure 4.
The minimum spouting velocity calculated by simulations was about 24 m/s.

Numerical Simulation Method.
Contrast the simulation result, there was not much change on flow characteristic.
Unsteady Numerical Simulation Using CFD to numerical simulation for the pump can predict its performances distribution rules of internal flow effectively, and effective reference [4.5] for optimization is thus provided.
Numerical simulation of rotational interior flow in self-priming pump[J].
CFD Modeling of the Flow Field inside a Reflow Oven [J].Soldering and Surface Mount Technology, 2002, 14 (1): 38-44

In this paper, we give the detailed CFD analysis of cylinders moving in water according to seismic input, and then present a method suitable for practical usage.
CFD analysis of cylinders moving in water In this section, we simplify the piers as rigid cylinders moving in water, and then calculate the pressures on these cylinders using finite volume method.
For CFD analysis, viscous model is also an important factor which affects the calculating results.
Here we choose the k-epsilon model, the requirement for first wall layer grid size of the model can be determined by an empirical formula: . (2) Our CFD model is a tank filled with 6.5m deep water and air at the rest part, so it is a two-phase flow.
Numerical simulation and analysis A continuous beam bridge with piers in water is modeled into 417 nodes and 415 beam elements, which is shown in Fig4.

Computational Fluid Dynamics (CFD) is one of the methods that can be used to study the nature of turbulent flow especially in the aspect of wind engineering besides the experiment at full scale of reduced scale (wind tunnel experiment).
Large Eddy Simulation (LES) is a promising way for the simulation of wind flow fields and pollutant dispersion [6], though it is still restricted by the capability of today’s computers.
The simulation was run for 30 min of simulation time without pollutant source in order to establish the turbulent wind fields throughout the domain and all statistics are averaged at least for 15 min.
These factors contribute to the quality of the resultant simulation.
Best practice guideline for the cfd simulation of flows in the urban environment. (2007)

The results were obtained from experiments performed by a dye tracer and confirmed by computational fluid dynamics (CFD) calculations.
Besides, the flow visualization experiments for vertical deadlegs were carried out by Habib [9] using a laser sheet, which provided an important verification of CFD simulation.
Numerical Simulation Of Mixing in Process Deadlegs in order to Model Microbiologically Influenced and Tuberculation at These Locations.
A Comparison of Experimental Data and CFD Predicted Cool Down in Subsea Equipment, the 4th conference on CFD in the oil and gas, SINTEF/NTNU, Throndhein, 2005 [4]H.
Exploring CFD solutions for coexisting flow regimes in a T-piece, Chem.