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Experiment confirmation of CFD study To confirm the result of the CFD method, an evaporative cooling system is established and some experiments are conducted in the laboratory.
The result of the experiment shows that the distribution of static pressure in the inlet-box to the air cooling condenser are in well accordance with the ones from the CFD method.
With the help of the CFD software, simulations of the flow field of coolant gas in the inlet box to the air cooling condenser are carried out.
Cui, Numerical simulation and experiment for the close-loop-self-circulating evaporative cooling system of hydrogenerator stators, Master Thesis of IEECAS, 1999
Tian, Numerical simulation for circulating systems and experimental comparison of the closed-loop, self-circulating evaporative cooling of hydro-generators, Electrical Engineering, pp.127-134, 2004 [6] G.B.

The gravity dust-catcher for blast furnace gas in one steel plant is researched with computer numerical simulation in this work.
To improve the dedusting system of the blast furnace that needs an overhaul in one steelmaking plant, the flow pattern and dust collection efficiency of exiting gravity dust-catcher is analyzed through computational fluid dynamics(CFD) method [3,4] in this work.
The dust-catcher optimization scheme based on CFD analysis is proposed for the blast furnace overhaul plan. 2.
The simulation of optimization scheme is made with the same parameters as existing duster.
Conclusion The gravity dust-catcher in one steel plant is analyzed with gas-solid flow simulation on computer in this research.

Air-flow distribution simulation and experimental analysis of a new testing room for refrigerated display cabinet Chao Huang1, a, Fang Wang1,b , Zhimin Wu1,c, Chao Guo1,d 1 University of Shanghai for Science and Technology, Shanghai 200093, China ahchkevin@vip.sina.com, bwang1996930@163.com, cwzm2010hc@163.com d233155660@qq.com Keywords: display cabinet, thermal performance testing room, air-flow distribution, CFD simulation Abstract.
This paper uses the FLUENT, which is one of the CFD simulation software, to verify the design method of air movement.
Return air shaft static pressure room Fig.1 Scheme of air distribution for the testing room Air flow distribution numerical simulation of the testing room This paper uses Fluent software and the SIMPLE numerical simulation algorithm [7].
The numerical simulation calculation uses Κ-ε equation to obtain the result.
Physical model of the numerical simulation This paper uses the following basic assumptions: (1) Fluid in the testing room is in steady state, and a steady working condition is obtained after a long time operation

In early years, experiment is the only way to research the characteristics of the oscillatory flow reactor, while numerical simulation becomes more a useful method with the rapidly development of the computer technology and computational fluid dynamics (CFD).
The mechanism of mixing in an OFR can be understood with the help of numerical simulation study on the concentration field.
What’s more, it has laid a good foundation for the simulation of reactions to research the concentration field in the OFR.
[13] Li Wei, Hu Xiaoping, Wu Jia, “CFD Study of Flow Fields in an Oscillatory Flow Reactor with Conic Ring Baffles,” Chemical Reaction Engineering and Technology, vol. 23, no. 6, pp. 487-493, December 2007
[14] Wang Fujun, Analysis of Computational Fluid Dynamics-CFD Software Principles and Applications, Beijing: Tsinghua University Press, 2004, pp.116-122

CFD Theory and Computer Code Process The basic idea of CFD is to substitute a set of variable values on finite discrete nodes for the physical variable field which was continuous on space and time, and then solve a set of algebraic equations that established the relationship of discreted variable values to get an approximation of physical variable field.
Method that solves the governing equations directly called Direct Numerical Simulation (DNS).
Reynolds Average Numerical Simulation (RANS) and Large Eddy Simulation (LES) could use lower grid resolution.
Take a one-dimensional simulation in Cartesian coordinates for example (, , when i=1).
But the pressure maximum and minimum are higher using numerical simulation than field data.

Simulation program ANSYS.
There is a new way based on computer simulation.
In my case, the simulation program ANSYS based upon variation method of finite elements supported by FLOTRAN CFD module has been used for this method.
In ANSYS system there are two basic elements for FLORTAN – CFD.
Using the element in FLORTAN – CFD the calculation for fluctuant and thermal distribution through area of elements forming the network is carried out.

Another treated the problem as a 3-D multi-phase turbulence flow by using commercial CFD softwares.
Simulation results of two-phase flow.
This, to some extent, can validate the precision of the simulation.
Optimized Design of the Toilet Siphon Pipeline Based on CFD Flow field Analysis.
Journal of System Simulation, 2008, 20(16):4412-4416

The mathematical models for the ship and the propeller have been built and validated using computational fluid dynamics (CFD), then unsteady simulation done to obtain the transient responses of the propeller excitations.
The predicting Methodology : Mathematical calculation model (CFD and FEM) : - Ship Model is the 35,000DWT Bulk Carrier "MARINE PRINCESS” model No.
After the validation of the propeller-hull interaction at model scale, the model is scaled to full scale and unsteady RANS simulations have been used via FLUENT software to calculate the induced 3-D hydrodynamic forces of the propeller.
The forces on the propeller surface nodes (14879 nodes) have been extracted from CFD with time step 0.01 s for a total time 5.107 seconds.
Numerical prediction of propeller excited acoustic response of submarine structure based on CFD, FEM and BEM, Journal of Hydrodynamics, 24(2), 207-216, (2012)

Numerical Simulation on Computational Model of Hypersonic Slip Flow Liu Xuewei c, Luo Kai b, Ming Lei b, Song Limin b and Jin Jun c Aviation University of Air Force, Changchun, Jilin, China alisong_1@126.com, bliminsong_2001@163.com, climi_2014@sina.com Keywords: hypersonic; slip flow; computational model; numerical simulation Abstract.
The distribution of velocity and temperature in Knudsen layer are nonlinear about which the slip model can provide approximate simulation to some extend.
Computational model This research developed a general 3D, parallel, structured, finite-volume CFD code based on 3D N-S governing equations, using M-AUSMPW+ scheme[2] and LU-SGS implicit time integration scheme[3].
Numerical Simulation on The Effects of Hypersonic Slip Flow[C].
Near Space CFD Seminar, Beijing, 2010

The result is proved by CFD software.
Numerical simulation 4.1 Governing equation Continuity equation of incompressible fluid and RANS equation.
Figures below are the results of simulation.Fig.8 , fig.10 and fig.12 are the resistance coefficient , moment coefficient and lift coefficient in the astern maneuverability.
The model is much more stable in the straight maneuverability. 4.3 Results and Discussion Through the experiment and simulation , the resistance,lift force and moment of astern maneuverability and upright maneuverability are compared , the results show big difference.
And simulation will use the technology of dynamic mesh technique to text the moving model.