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Computational fluid dynamics (CFD) is an excellent tool to study the cooling issues in data centres.
In the last decade, extensive research has been conducted to study thermal management in data centres using CFD [1-3].
A CFD analysis has been performed to provide detailed flow and thermal fields.
CFD Simulation The data centre selected for this study is modelled as a 177 m2× 3.2 m enclosure located over a 0.6m deep plenum as shown in Fig. 2.
From CFD results, rack and CRAC inlet and outlet temperatures are obtained and the total exergy destruction in the airspace is calculated.

The corresponding regularities are obtained from simulation results, which provide a method for design optimization of mufflers.
Geometric models of mufflers are built with Pro/E software in this paper, then velocity field, pressure field and vector field are numerical simulated by mains of CFD.
�umerical Simulation Mesh Generation.
Velocity field and pressure field are obtained using CFD method to analyze the airflow influences on muffler performances.
Transactions of Csice", Vol. 21,2003, p.337-340 [3] MA Da-you, "Fundamental Theory of Modern Acoustics", Science Press, 2004 [4] HAN Zhan-zhong, WANG Jing and LAN Xiao-ping, "Example and Appliance of Fluid Engineering Simulation with Fluent", Beijing Institute of Technology Press, 2004

Numerical simulation of the thermal NOx emission under three different loads in the furnace of a supercharged boiler is conducted with FLUENT software.
The supercharged boiler is studied in this paper by CFD methods.
Geometric model of numerical simulation The geometric model of numerical simulation is shown in Fig.1.
As the geometric model of numerical simulation is complex, we split the volume into several ones and then mesh one by one.
[6] ZHAO Jian xing, Numerical Simulation of Combustion, Science Press, Beijing, 2002.

Krasińskiego 8, 40-019, Katowice, Poland a roman.zagorski@polsl.pl , b anna.dolata@polsl.pl, c maciej.dyzia@polsl.pl Keywords: alloy casting, solidification, contact resistance, CFD simulations Abstract.
The assumption of the appropriate values of simulation parameters has shown that the simulation results are convergent with experimental ones.
Currently, there are several programs which belong to Computational Fluid Dynamic group (CFD).
Fig. 2. 2D simulation model.
Simulation course of temperature change.

Software CFD is capable of flow visualisation which is then used as the base for the ventilation efficiency assessment.
The simulation can detect places of possible accumulation of condensate – see Fig. 2.
Based on numerical simulation displayed using velocity contours (in accordance with the legend in [m/s]) it is evident that two whirls are formed in the floor; the wind stops flowing in their centres v = 0 [m/s] (dark blue ovals – see the legend).
Often the only alternative is to carry out a CFD (computational fluid dynamics) method, for example using ANSYS computational programme.

Simulation Analysis on Interior Flow Field of Recoil Brake Based on Dynamic Mesh Yezun Sun1,a, Junqi Qin1, Changchun Di1, Kaibo Cui1, Yan Wang2 1Mechanical Engineering College, Shijiazhuang, China 2Unit 66064 of PLA, Fanzhi 034306, China ayzsun_2012@163.com Keywords: CFD; recoil brake; dynamic mesh; numerical simulation Abstract.
Simulation of the flow field of recoil brake accurately was achieved.
Pressure, speed and other data were got by simulation.
Numerical Simulation of Flow Field in A Gun Recoil Mechanism[J].
Numerical simulation of flow field in gun recoil brake based on dynamic mesh[J].

This is followed by Chapter 3, by Fernandes Magalhães et al. who present a hydrodynamic study of the water/oil separation process in a hydrocyclone by Computational Fluid Dynamics (CFD).
This is followed by Chapter 6, by Verusca de Oliveira Lopes et al. who present an analysis of the performance of a concentrating hydrocyclone in the separation of ore and water by CFD.
In the fluid dynamics simulation, the Eulerian-Lagrangian approach and the Ansys Fluent software were used.

CFD Analysis of Hypersonic Combustion of H2-Fueled Scramjet Combustor with Cavity Based Fuel Injector at Flight Mach 6 K.M.
These numerical simulations are aimed to study the flow structure, supersonic mixing and combustion for cavity based injection.
Approximations and idealization · The flow is considered to be in steady state · The flow is assumed to be two-dimensional · The k-ω SST computations Model is taken in to consideration · The gas is compressible, obeying the ideal gas laws · For all simulations, wall temperatures were set to Twall = 1000K Results and Discussions Validation of CFD work (c) Fig. 3 Computational results for L/D =3 without aft angle (a) Streamline and pressure contour (left: Gruber’s computational visualization (b) Computational streamlines and contour plot of pressure (c) Wall static pressure distribution Fig. 4 Wall pressure distribution for L/D=3 with the aft angle, q=30o Figure 3 presents the surface pressure distribution along the cavity wall for the case of L/D= 3.
Radhakrishnan, Simulation of unsteady hypersonic combustion around projectiles in an expansion tube, Shock Waves Vol.11, pp.167–177, (2001)
Pandey and S.Roga, CFD Analysis of Scramjet Combustor with Non-Premixed Turbulence Model Using Ramp Injector, Applied Mechanics and Materials, Trans Tech Publications, Switzerland, Vol.555, pp.18-25, (2014).

Modelling and Simulation of Hollow Profile Aluminum Extruded Product Hani Mizhir Magida, S.
Subsequently, the optimized algorithm for these extrusion parameters was suggested based on the simulation results.
Finite Element Analysis and Simulation Process Fig. 3 Modeling and Analysis Flow Chart.
The general steps of simulation process by (ABAQUS/Explicit) are illustrated in Fig. 3.
Cleary, “Modelling of Cold Metal Extrusion”, Fifth International Conference on CFD in the Process Industries, pp. 1-7, Dec 2006

The turbine performance and flow behavior have been evaluated by means of numerical simulations.
In order to develop effective methodologies to improve hydro turbine performance and to investigate innovative turbine concepts, computational fluid dynamics (CFD) can play a significant role.
The turbine performance and flow behavior have been evaluated by means of numerical simulations.
The dimension in the simulations is in the same range as those encountered in the experiment.
Conclusion The performance of a horizontal axis impeller of the mini hydro turbine applications has been numerically investigated after having validated the CFD model by comparison of the results with experimental test.