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The CFD method can effectively simulate fluid flow tests [4-5], thus this research has carried out simulation study and compared with the results from NEL.
Simulation results Wall static pressure analysis.
Fig.4 OR comparisons of simulation and expriment Fig.5 Redicted errors OR predicted error of simulation.
(2) The flow process has been simplified in simulation.
Conclusions CFD simulation technology is used in this research to predict the standard Venturi OR characteristics under high pressure.

Study and Investigation on the Mach of Impeller Outlet and Diffuser Inlet in Stamping and Welding Centrifugal Pump GAN Jianjun 1,a, MOU Jiegang 2,b, ZHENG Shuihua3,c, ZHU Bo4,d 1 College of Mechanical Engineering Zhejiang University of Technology, Hangzhou, Zhejiang, China 2 College of Mechanical Engineering Zhejiang University of Technology, Hangzhou, Zhejiang, China 3 College of Mechanical Engineering Zhejiang University of Technology, Hangzhou, Zhejiang, China 4College of Mechanical Engineering Zhejiang University of Technology, Hangzhou, Zhejiang, China aganlet@163.com, bmjg1963@126.com, czneu@zjut.edu.cn, dzhubo363@163.com Keywords: Stamping and welding centrifugal pump; Impeller outlet; Diffuser inlet; Numerical simulation; Hydraulic performance Abstract: Based on CFD simulations and experimental research, this paper studied the mach of impeller outlet and diffuser inlet in stamping and welding centrifugal pump.
Based on CFD simulations and experimental research, the influence of the mach of impeller outlet and diffuser inlet on stamping and welding centrifugal pump internal flow characteristics and performance were studied.
Computational Methods and Simulation Results Analysis Assume that fluid in the centrifugal pump internal flow constantly.
Experimental investigation Typical prototypes are manufactured and tested to verify the reliability of numerical simulation.
Tab.3 Experiment and simulation results of two prototypes Y=3.49 Y=2.00 performance parameter tested simulated tested simulated P/KW 0.184 0.179 0.182 0.181 H/m 8.189 8.458 7.952 8.203 /% 50.23 48.44 48.61 46.86 Simulation results are corrected according to the formula provided by literatures [6].Comparing the numerical simulation results and test results，under design conditions, results of numerical simulation agrees well with that of testing, the maximum deviation of head is less than 5%, and the deviation of efficiency is also very low.

The k-ω Shear Stress Transmission (SST) turbulence model was selected for CFD calculation.
By comparing the result computed by XFOIL and CFD calculation, it can be known this airfoil’s sensitive locations in suction surface and pressure surface.
It chose the FFA-W3-211 as the simulation object, which can get the experimental data from [5].
(use the same parameter values in simulation).
To improve the accuracy of simulation, the computational zone is extended to 20m (shown in Fig 2).

The flow formulation was founded as console formulation, and with the body-fitted coordinate system and standard k - ε turbulent model, the numerical analysis of the internal 3-D incompressible turbulent flow of the agitated flow field was carried out by CFD software Fluent.
With the development of computer technology, CFD technology is playing a more and more important role in the development and design of the mixing equipment for its speed and economy.
This paper deals with the numerical simulation analysis on the agitated flow field of the submersible mixer (its diameter is 360mm, and its rotational speed is 1430r/min) by CFD software Fluent.
Control Equations The 3-D incompressible Reynolds time-averaged equations are adopted and enclosed by the standard ε−k turbulence model in the numerical simulation of the agitated flow field.

This simulation model provides an effective platform for vehicle thermal management analysis.
Simulation Engine input dates.
By the CFD instead of the wind tunnel, we get air characteristic parameters [5], which will help the KULI [4] as shown in Figure 2 and 3.
Fig2.The cabin CFD result Fig3.Air path model of cabin for cooling module.
It is steady simulation that the temperature is at 30℃.

In this paper, the method of balancing the axial force with balance hole is studied based on the combination of CFD and experimental research.
Simulation Settings.
Selecting separation solver for simulation, assuming steady flow in centrifugal pumps.
The test the value of axial force is a little larger than numerical simulation, due to the simulation process in a better state, and the measurement process in test may have deviation.
Performance Prediction of Centrifugal Pump Based on the Method of Numerical Simulation [J].

The engine with known specification is being modeled using one dimension CFD GT-Power software.
A study of computational method to simulate a four stroke single cylinder direct injection diesel engine has been performed using one dimension CFD GT-Power software.
Indicated torque by simulation is shown in Fig. 3.
Fig. 4 shows the indicated specific fuel consumption result for simulation.
Indicated mean effective pressure result for simulation is shown in Fig. 4.

And it has been successfully applied to numerical simulations of two dimensional airfoil aerodynamics [6]. 2.5 Boundary conditions representation Initializing water pressure is 4MPa, the temperature 20oC, and flow rate of the inlet and outlet is 15Kg/s.
Numerical process visualization With commercial computational fluid dynamic (CFD) software Fluent, the temperature contour from combustion inside of the heater is shown in figure 3.
Conclusion In this paper, the fluid-solid-heat coupling heat transfer is analyzed by using finite element method and CFD method.
Reliability on CFD estimation for wind–structure interaction problems.
Numerical aerodynamic simulations of a NACA airfoil using CFD with block-iterative coupling and turbulence modelling.

Computational efficiency is demonstrated by CFD simulation of the starting transients in ADDA solid rocket engines and in the SEATTLER solar mirror tower.
The code is exclusively directed to unsteady flow simulations in slender channels.
Still the 1D CFD approach is well justified in both applications – the RE and the ST –mainly due to the slender aspect of the channels in both ingredients.
The simulation of tower’s unsteady behaviour is based on the unsteady equations of the gas (air) flow.
D., “Technology of CFD in space engines and solar-gravitational power plants”, International Journal on Energy Technology and Policies, ISSN 1472-8923, On-line ISSN 1741-508X, 6, 1-2(2008), p.124-142.

Numerical Simulation of Flow Field in Burnt Lime Hydrator Minghua Bai, Yu Zhang and Qiufang Wang College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, China zhangyu1985725@163.com Keywords: burnt lime hydrator; numerical simulation; stirring shaft; blade Abstract.
The schematic diagram of slaker Conditions of Simulation Assumptions.
The level of mesh density has significant influence on the computing time and accuracy of the simulation results[5].
Wang, “Computational Fluid Dynamics Analysis-the management and application of CFD software,” BeingJing: Tsinghua University Press, 2004
Wan, “Finite Element Analysis of Stand Center Blender Based on Its CFD Numerical Simulation,” Oil Field Equipment, Vol. 37 No. 8, 2008, pp.52-55