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The numerical simulations are carried out by using commercial finite volume solver CFX 13.0.
The solver finished a single simulation in approximately 2,000 iterations.
The present numerical simulations have been performed by an Intel Xeon CPU E5420 (8CPUs).
Acknowledgments This work was supported by the National Research Foundation of Korea (NRF), grant No. 20090083510, funded by the Korean government (MEST) through Multi-phenomena CFD Engineering Research Center.
Chai: Three-dimensional Numverical Simulation of Fluid Flow with Phase Change Heat Transfer in an Asymmetrically Heated Porous Channel, Int.

The numerical simulation of gas-liquid-solid three-phase flow in the disc pump LI Bin1, a, QI Hao2,b 1Mechatronic Engineering College, Southwest Petroleum University, Chengdu, China 2Oil Production Services Co, CNOOC Energy Technology & Services Limited, Zhanjiang, China aswpulb@126.com, bqihaoyuz@163.com Key words: disc pump; gas-liquid-solid three-phase flow; structure improvement; numerical simulation Abstract: In this paper, the flow law of gas-liquid-solid three-phase flow was studied in the disc pump internal, established a set of numerical simulation method that calculated multiphase flows of disc pump internal.
Finally the structure of the disk pump impeller was improved, and designed a new disc pump with multiple-blade structure, through numerical simulation calculation for the gas-liquid-solid three-phase flow of the disc pump internal, mastered change rule of fluid pressure and speed in disk pump internal, obtained relation curves between the different solid phase particle concentration with different gas phase concentration and the head with the efficiency of the pump.
In order to improve the performance of disk pumps and know well about the motion law of internal fluid flow, this paper multiphase fluid dynamics, particle dynamics and numerical simulation of the disk at gassed pumping to simulate the flow of, access to variation of the pump flow and the concentration of solid particles of different diameter and density and the pump head and efficiency curves, a set of disk Pump calculated numerical simulation of multiphase flow, while the pump in use for the disk head and the problem of low efficiency of the pump impeller disc structure was improved, designed a multi-leaf structure of the new disc pump, through the application in the field after the good results achieved. 1 Gas-liquid-solid three-phase flow equations Continuity equation [7-8] （1） Which: （2） （3） Where: —Multiphase fluid mixture density，; —Divergence，; —Mass average velocity，; —K-phase volume fraction，%; —K-phase density of the fluid phase，。
Numerical simulation of the two-phase flow in centrifugal pump impellers.
[8] WANG Guang-ye and LIU Yuan-yi, Analysis of CFD on Inner Flow in Low-specific-speed Centrifugal Pump Impeller, China Mechanical Engineering & Automation , 2006,(5) : 31-33.

We developed computational procedures UDFs (User Defined Function) working interactively with the Fluent CFD code [1].
Geometry and mesh In the present work, the gambit/fluent simulation package was used to develop our numerical simulation.
Conclusion This numerical simulation relates the heating effects during laser interaction with metal surfaces using a laser beam with Gaussian distribution of the intensity.
In the simulation we studied the influence of the various parameters related to the laser beam.
Garruchet, “ Modélisation de phénomènes locaux : vers leur prise en compte dans la simulation de la cinétique d’oxydation d’un métal.”, Thèse de Doctorat, Ecole Doctorale Carnot, Bourgogne, France (2006)

Modified parameters then are verified by processing simulation and experiments.
Firstly, the simulation involves multi-fields simulation.
All of these analysis and simulation as well as experiments are time consuming.
The simulation involves multi-fields simulation, for example, (1) continuum fluid flow simulation using CFD model to compute the velocity and pressure distribution of the working gas within a deposition chamber; (2) steady state plasma simulation to determine the flux and energy of the ions that strike both the target and substrate; (3) transport simulation using Direct Simulation Monte Carlo (DSMC) to track the propagation (and energy loss) of target atoms through the working gas from the target to a substrate; (4) hyper-thermal kinetic Monte Carlo method to relate the film surface morphology and atomic scale structure to the flux parameters and therefore the conditions of the vapour deposition process [9]; (5) the electric field simulation for the magnitude of electric field enhancement is associated with non-flat surface morphologies; (6) the magnetic field simulation for predicting the target erosion and the thickness profile of the films deposited by magnetron sputtering; (7) thermo
field simulation and components performance simulation.

The whole field are computed based on the Navier-Stokes equations, utilizing the commercial CFD software FLUENT.
Fig.3 Time series of wave elevations at x=46.6m and comparisons of present model results and analytical results(left: U=0.3m/s,right: U=-0.3m/s) Simulation of the Oil Shape Variation before Boom The variation of the oil slick thickness with time is predicted based on this numerical experimental platform.
The major features of this platform are: (1) incorporation of the movement response of floating boom which is accomplished by the dynamic grid algorithm; (2)local three-phase model for simulation of the oil slick profile;(3)VOF method for the simulation of the oil-water interface.
[5] Lin Zhao, Zegao Yin, et al, “Numerical simulation of the combined wave-current force distributions on large-scale under water objects,” In Asme International Mechanical Engineering Congress and Exposition, 2009

Because it is necessary to minimize the computational domain to a minimum for computational reasons, key elements in the numerical simulation is the treatment of reflection from model structures such as a breakwater or sea wall.
In the paper, CFD software FLUENT is used as the foundation to develop the numerical wave flume.
Numerical simulation of progressive wave and standing wave was carried out to cheek if the module works well.
Numerical Simulation of Wave Impact on the Slab.

The physical model of numerical simulation used in this study was based on a uranium-bearing mountain in China.
In this paper, CFD simulations were conducted with the code Fluent.
For the premise simulation, detailed atmosphere wind profile, turbulence structure and surface roughness would be investigated in the future study.

Ye et al. [3, 4] have simulated the spray painting process based on CFD (computational fluid dynamics) software Fluent with 5-7 hours on a PC (3GHz CPU), with numerical and experimental results in good agreement.
However, their simulation is hard to be applied to complex surface due to the turbulent flow, multiphase flow, temperature, boundary condition etc.
Ye: The simulation of the electrostatic spray painting process with high-speed rotary bell atomizers.
Ye: The simulation of electrostatic spray painting process with high-speed rotary bell atomizers.

With these questions in mind, firstly, aimed at solid particles depositing, the solid dispersion of the slurry under the conditions without agitation, has been investigated by computer fluid dynamics (CFD) method in our recent work, and the simulation results showed that without agitation the solid content would not concentrate to tank bottom completely with the normal work flow [8].
Fig. 2 Depth dependence of total average value of solid concentration That is to see, under the condition of reduced or slight agitation, the distributions of the solid phase were uniform relatively in the tank except for the zone near the tank surface, which is consistent with the previous results of computational simulation [8].
That is consistent with the previous results of computational simulation.

The simulation results show that there is negative pressure at the entrance of spindle rotation direction.
The simulation results can reflect the flow law of internal flow field of the middle pillow.
The velocity and pressure distribution of journal bearings under turbulent condition were analyzed by using CFD techniques.
The simulation curve can be got through uniformly taking nine spindle speeds among 240r/min and 480r/min.
Zhang: Computer Simulation Vol. 22 (2005), p. 283-285