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The CFD theory[2]~[3] was used to conduct the research of flow computation.
Numerical Simulation Method 1.1 Governing Equation The flow is 3-d incompressible and viscous fluid.
Different styles of turbine’s flow passages were calculated by 3-d numerical simulation software.
Then CFD theory was used for computation in the unit optimized process.
CFD simulation of sand-water two-phase inner flow field of volute, Journal of Drainage and Irrigation Machinery Engineering,2007,pp61~64

Meanwhile simulation of the temperature field was made with CFD software, the result fits temperature requirement.
And try to clarify its feasibility and energy conservation respectively with CFD software and Energy-Plus.
Simulation Research.
As the large amount of simulation, we take the simulation of five subway coaches in garage as an illustration to verify the validity of the simulation.
The same simulations were conducted while there were different numbers of coaches in garage.

China awxxbad@163.com Keywords: marine propeller; flow field simulation; propeller performance analysis Abstract.
With the development of computer technology, the computational fluid dynamics software functions have been greatly enhanced, in recent years, some researchers have been presented based on propeller open water performance of CFD numerical analysis method, and compare the calculated results with the traditional experimental data, prove in the propeller open water performance calculation, using CFD software to the results of numerical simulation can meet the requirements of engineering application [2].
Grid directly influences the quality and the way of dividing the simulation results, so point’s network is the one of the most critical parts in the process of numerical simulation.
References [1] Fudong Gao, Cunyun Pan, Wenshan Cai: Based on propeller open water performance of CFD numerical analysis and verification.
[2] Chao Wang, Sheng Huang, Xueshen Xie: Based on CFD method of the propeller hydrodynamic performance prediction.

An example of the CFD simulation results on the pressure and velocity distributions of a propeller is shown in Fig. 3.
Implementation Model of Trajectory-Tracking Controller for a Quadrotor UAV Implementing the Simulation Model.
This model is based on the CFD simulation, the specialization of HA’s features and microcontrollers in order to accurately analyze, design, implement and realize the control parts of system.
[15] OpenModelica, Simulation software, https://www.openmodelica.org/ (2012)
[16] Fritzson P., Introduction to Modeling and Simulation of Technical and Physical Systems with Modelica, John Wiley & Sons (2011)

Keywords:homogenizing valve; homogenization; numerical simulation; computational fluid dynamics Abstract.
Numerical investigations on flow and pressure fields within a kind of new type homogenizing valve have been conducted using computational fluid dynamics (CFD) software.
The study indicates that the new type homogenizing valve can be modeled by CFD and detailed information on high speed flow is available.
To obtain estimates of such data, numerical simulations are required.
Visualization of the flow patterns in a high-pressure homogenising valve using a CFD package.

Firstly, we parameterized a surface model of the original model and took the parametric model into a CFD simulation.
The k-ε turbulence model is chose in CFD simulation.
Table 2 shows the tolerance comparison of the CD value between CFD simulation and wind tunnel experiment.
The tolerance, less than 1%, between CFD simulation and Approximate Model prediction shows that the Approximate Model's precision is enough high.
The CD1 and CD2 stand for the aerodynamic drag coefficient of Approximate Model and CFD simulation, respectively.

(7) (8) Where u (0.5786m/s)is the circumferential speed of the bearing, c0 is the specific heat of the oil, ∆t=8.73℃ CFD Simulation and result Due to pads are distributed around the azimuth axis evenly, we only analysis one pad.
Theoretical calculation and simulation of the hydrostatic thrust bearing have been presented.
The temperature field and pressure distribution have obtained by CFD calculation.
Because some simplified of the structure, there is some difference in theoretical and simulation of temperature rise.
The result of simulation display performance of bearing and help reasonable control temperature of oil.

Research progress about experimental method and simulation computation of workability of pumping concrete are presented, which would provide research thinking and research method for combining simulation computation and experimental method.
This method bases on computational fluid dynamics (CFD), which combines Bingham constitutive model; (2) discrete particle flow method.
Fig.4 shows simulation results of slump test through VSEM[5].
Many commercial CFD softwares support this method.
Research of pumping concrete and small scale simulation computation Conclusions This paper introduces research progress of workability theoretical research and simulation computation of pumping concrete.

This paper simulated airflow field surrounding the iced conductor by using CFD software and discussed aerodynamic characteristics of iced conductor.
This is further analyzed through numerical simulation in the following text.
Table.1 shows similar overall trend of aerodynamic coefficient gained from CFD simulation with that of wind tunnel test results.
[2] Yanfang Zhai: Overhead transmission conductor simulation and interphase interval research[D].
[8] Pengfei Li, Minyi Xu, Feifei Wang:FLUENT GAMBIT ICEM CFD Tec plot.( Posts and Telecom Press, Beijing,2011),p267

According to the actual operating parameters of tundish in a steel mill, the flow pattern and temperature distribution of molten steel in tundish were studied by CFD and heat transfer calculation method.
Using CFD and heat transfer calculation method, the effect of parapet hole height on molten steel flow and temperature distribution were studied.
Chen, et al.: Physical simulation on gas curtain of single flow tundish, Refractories & Line. 38(5) (2013) 11-17
Duan: The numerical simulation of continuous casting tundish inclusions behavior, World Iron & Steel. (4) (2014) 21-26
Lei, et al.: Numerical simulation on tundish induction heating, Research on iron & steel. 42(3) (2014) 20-25