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Currently, many scholars has began to use CFD software for numerical simulation, supplemented by a variety of new measurement techniques for flow within the fluidized bed equipment to detail such as the research of the particle concentration, velocity distribution and other parameters, the calculation of the multiphase flow and reaction process and mass transfer process, and the process of analysis, simulation, optimization, integration, etc.
The local gas holdups and the gas velocity field simulation s.
The local liquid holdup and liquid velocity field simulation.
The local phase holdup, the pressure field, velocity field is a more accurate simulation.
One dimensional numerical simulation of small scale CFB combustors.

Greet agreement of diameter changing tendency was found in simulation and experiment.
However, the computer fluidic dynamic (CFD) method compensates the shortcoming of experiment process.
A typical co-flowing model used in the computational fluid dynamics (CFD) was created which was composed of two cylinder tubes, showed in Fig.1.
A typical dripping formation of droplets was processed in simulation and experiment.
This relationship was also found in numerical simulation, showed in Fig. 4b.

To simulate the complex flow phenomenon of synthetic jets, the commercial computational fluid dynamics (CFD) code ACE+ ® was used for numerical calculations [6].
Theoretical Model Simulations using CFD software ACE+ ® were conducted to explore the flow structure of synthetic jets.
The maximum error between the predictions and the experimental results was well within 3.21%, indicating that the simulation software can predict synthetic jets with an adequately accuracy.
Numerical calculations were also conducted to examine various effects (including the driving voltage, relative phase delay of frequency, slot width, and cavity depth) on jet performance under pre-specified simulation conditions.
Spall: Physics of Fluids Vol. 17-4 (2005) 045103 [6] ESI US R&D 2004 CFD-ACE(U) ® V2004 User's Manual ESI-CFD Inc., Huntsville, AL.

From the information cited above, this work aims to study the separation process of oily water using ceramic membrane by CFD.
Figure 1 - Geometric representation of the tubular membrane and transverse 2D plane used in the simulations.
For numerical simulation, one mesh was generated using ICEM CFD software, as shown in Figure 3.
Table 5 - Parameters considered fixed in the simulations.
Fouladitajar, CFD modeling and simulation of concentration polarization in microfiltration of oil-water emulsions; Application of an Eulerian multiphase model, Desalination. 324(2013) 37-47

Along with the development of fluid dynamics research, it is feasible and has obvious advantages to adopt simulation study with the CFD simulation software for attrition of sewage pump.
Model parameter of centrifugal sewage pump The paper took type of 50W15 centrifugal sewage pumps as research object for simulation.
Simulation results and analysis The simulation was done under different working condition with different particle size which diameter is from 1mm, 2mm, 3mm, 4mm and 5mm, and different granule concentration which is 1%,2%,3% and 4%.
Simulation results show that wear degree is not uniform in different part of impeller.
[3]Fu-jun Wang: in:Computational fluid dynamics (CFD) software analysis: principles and applications.

One person is assumed to be seated and another moving person is simulated by dynamic meshes in computational fluid dynamics (CFD).
The feasibility of this numerical model under steady state simulation has been validated in similar study [3].
(a) Physical configuration of the chamber with ceiling mounted PV; (b) Physical configuration of the chamber with conventional PV; (c) Plane view at 1.2m for the details of moving person Table 1 Boundary conditions for air inlets and outlets length (m) Width (m) velocity (m/s) Boundary Condition Type Ceiling mounted PV inlet diameter=0.05m 6.65 velocity inlet Conventional PV inlet 0.2 0.1 0.65 velocity inlet Ambient air inlet 0.6 0.3 0.65 velocity inlet Outlet 1 0.35 0.2 pressure outlet Outlet 2 0.35 0.2 pressure outlet Numerical algorithm 1 Steady state simulation The CFD simulation is conducted by using commercially available software FLUENT.
Conclusions In this study, CFD method is utilized to analyze the effects of a moving person on both ceiling mounted PV and conventional PV in a small chamber.
Three-dimensional numerical simulation of a hybrid fresh air and re-circulated air diffuser for decoupled ventilation strategy.

On the basis of the theory of the orthogonal test method and the requirement of the design on the stirring system, the factors and their levels of numerical simulation experiment are confirmed and the orthogonal test scheme is established in this paper.
Also the numerical simulation for mixing process of stirring system of the blender truck is carried out with CFD software.
In order to design reasonable stirring system, improve the stirring effect, on the basis of the main influence factors, the numerical simulation is carried out through combining the orthogonal test method and the CFD simulation method.
According to the simulation results, the time stirred uniformly of each group is shown in Table 3.
Table 5 The optimal structure size of stirring system A B C D E[m] G H the 2nd combined form 0.54 0.54 0.171 0.335 the hinge form 6 Conclusions According to the result of the numerical simulation and the range analysis method of orthogonal test, the influence degree of the factors for stirring effect is obtained.

The water pressure on the blade in the flow fields of different operating conditions is calculated by means of CFD software CFX.
R Xiao. etc. [1-2] calculated the flow field of the Francis turbine through the whole passage by CFD and concluded the linear relation between the maximum static stress of the runner and the power of the turbine by ordered fluid-solid coupling.
This paper does CFD calculations on the various conditions of design head through the whole passage of a certain Francis turbine in the northeastern China with the help of CFX and ansys workbench.
(a) Stay ring (b) Runner Fig.2 Grid of each part in calculation domain 1.4 boundary conditions The numerical simulation is finished with CFX.
This paper adopts the modeling software UG to do solid modeling for all the flow passage components of the Francis turbine through the whole passage and does three-dimensional numerical simulations on the Francis turbine through the whole passage by CFD.

Through Two-dimensional CFD software, Zamora et al. [5] did a simulation about vertical solar chimney when it is affected simultaneously by wind pressure and thermal pressure, and analyzed the effect of the chimney structure to ventilation when there is wind pressure.
When devising grid, the near wall face should be encryption processed, to assure the accurate simulation of the velocity gradient of the wall.
Through computing to simplify simulation, the solar radiation is transformed into the constant heat flux of absorption wall and glass in chimney.
In document [6], the writer identified the reliability of solar chimney simulation result and experiment result.
Numerical simulation of Enhanced Natural Ventilation with solar energy chimney (in Chinese) [J].Building Science, 2006, 22(6A):26-29

Simulation of methanol steam reforming heated by waste heat for hydrogen production in a microreactor Feng Wang 1, a, Jing Zhou 2, b, Guoqiang Wang 2, c, and Xinjing Zhou 2, d 1Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing, 400030, PR China 2College of Power Engineering, Chongqing University, Chongqing, 400030, PR China a wangfeng@cqu.edu.cn, b 646108160@qq.com, c 513715507@qq.com, d 497314155@qq.com Keywords: waste heat; methanol steam reforming; hydrogen production; simulation Abstract.
With the application of general finite reaction rate model in CFD software of FLUENT, we carried out 3-D simulation of this process.
Physical, mathematical and kinetic model The physical model used by simulation is shown in Fig.1.
With application of general finite reaction rate model in CFD software of FLUENT, the governing equations for analysis of the reacting flow in methanol steam reforming reaction channel of the reactor are: Mass balance: (1) Species balance: (2) Momentum balance: (3) Energy balance: (4) Ideal gas law: (5) Since CO content in the products of methanol steam reforming is very small on copper based catalyst, single rate kinetics of methanol reacting with water