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layer wind tunnel) in Florence (Prato), Italy with emphasis on comparison of the results with simulations in CFD (Computational fluid dynamics) software OpenFoam.
FOR INSTANCE, USING A COMPUTER SIMULATION TECHNIQUE AS CFD POWERED BY OPENFOAM ETC.
EXPERIMENT COMPARED TO CFD For simulation of atmospheric boundary layer we used software OpenFoam.
This software is free, open source CFD.
SIMULATION OF BOUNDARY LAYER IN CFD Simulation of boundary layer in OpenFoam was in real domain with real dimensions 1000x1000x500m.

This research was carried out to develop a CFD simulation model for simulating the transmission of contaminants via soil's multi-porous medium Consisting of four real porous media used from Iraqi soil, representing the sand, sandy gravel, organic, and calcareous soil.
To explore the process of transferring pollutants inside the porous medium, a physical model and simulation model were built and executed with the aid of CFD programs using COMSOL 5.4 software to investigate the transport of pollutants via porous material.
Computational Fluid Dynamic Simulation Models The CFD technique was used here to investigate, comprehend, and forecast the water flow process of contaminating transport.
BASED ON THE STATISTICAL INDICATORS, THE SIMULATION MODEL CFD BY THE COMOSL PROGRAM SHOWED GOOD COMPATIBILITY AND CONVERGENCE WITH THE MATERIAL RESULTS AND THEREFORE IT CAN BE RELIED UPON IN SOLVING MANY ENVIRONMENTAL PROBLEMS WITH LITTLE COST, EFFORT AND TIME.
Experimental And Cfd-Simulation Of Pollutant Transport In Porous Media.

CFD simulation and PIV test technology provide effective solution for revealing the complex flow of hydrodynamic coupling’s internal flow field.
In order to reflect the gas-fluid two-phase flow of coupling objectively, CFD three-dimensional numerical simulation is conducted under two typical operation conditions.
Currently, the research on the flow field of hydrodynamic coupling mainly included two methods: experimental study based on modern flow test and CFD simulation.
According to the foreign journals, research on internal flow field of the hydraulic elements focused on CFD simulation.
(a)3D model (b) CFD simulation (c) Grid model Figure 1.

Model Validation CFD Fuselage Simulation The developed model has been validated against a Computational Fluid Dynamic CFD model.
The CFD simulations have been performed on a fuselage geometry with the software CD-Adapco StarCCM+.
CFD Simulations Parameters Table 1.
Simulation parameters of the reference CFD simulations (CFD RANS VOF model).
Aircraft Ditching Numerical Simulation, ICAS 2006

CFD Analysis of Energy Loss of Direction Control Valve in Electro-Hydraulic Systems with Inverter Aphaiwong Junchangpood Department of Teacher Training in Mechanical Engineering, King Mongkut’s University of Technology North Bangkok, Thailand aphaiwongj@kmutnb.ac.th Keywords: Energy Loss Characteristics, Directional Control Valves, Electro-Hydraulic Systems, CFD Simulation.
In addition, this paper presents CFD results.
Therefore, in this paper, those variant parameters of the directional control valve are defined by CFD simulation, and the flow behaviors are also demonstrated.
Numerical Analysis and CFD Modeling For solving this problem, numerical analysis with the computational fluid dynamics (CFD) is used.
In order to obtain the transient flow characteristics of the valve numerically, the simulations were performed using the commercial software SolidWorks 2013 with Flow Simulation.

Therefore numerical simulation using the computational fluid dynamic (CFD) approach is proposed in this research.
Hartinger et al. [4] presented the CFD modeling of the thermo EHL line contact problem.
CFD Model The CFD approach uses the Navier-Stokes equations, as given below, to calculate the velocity and pressure of fluid flow in the EHL problem instead of using the simplified Reynolds equation
In this research, the ICEMCFD software is chosen to create the CFD geometry and meshes, as shown in Fig. 1.
The leading parameters used in the simulation are given in Fig. 1 and Table 1.

A CFD Simulation of Strouhal Number for U-shaped Section Aqueducts Yuchun Li 1, a, Xiaojie Zhang1, b, Shiwen Jia 1, c 1 College of Civil Engineering, Tongji University, Shanghai, 200092, China a YCL2000@tongji.edu.cn, b10zxj@tongji.edu.cn, c sdshiwen@163.com Keywords: Aqueduct, U-shaped section, Strouhal number, Computational Fluid Dynamics (CFD) .
Principle of Simulation The aqueduct body can be considered as a bluff body immersed in the air.
With the development of CFD technique, the Strouhal number can also be obtained by numerical simulation.
The cases of simulation are listed in Table 1.
Wilcox: Turbulence Modeling for CFD (DCW Industries, California 2006)

Heat transfer analysis of motorcycle engine cylinder using CFD under various fin geometries and speed condition Amit Ranjan1,a, D.H.DAS2 1Department of Mechanical Engineering, NIT Silchar 2 Associate Professor Department of Mechanical Engineering, NIT Silchar aCorresponding author:amitranjanmit05@gmail.com Keywords: Heat transfer,rectangular fins, wavy fins, CFD, simulation Abstract In thisstudy, the heat transfer analysis of internal combustion engine of motorbike is performed with the various fin geometries.
In the present paper an effort is made to study the effect of wind velocities and fins geometries on the heat transfer rate and simulation of the heat transfer using CFD.
In this paper an attempt has been made to stimulate the parametric study of fin heat transfer on the air cooled engine using CFD codes.
The 3D geometry is imported in ICEM CFD meshing software for mesh generation.
Simulations are carried out for all the different fin geometry for different wind velocities.

In this paper, a parametric modeling and simulation method is proposed, which is based on CAD/CFD tools.
Therefore, parametric modeling and simulation technology for launch vehicle based on CAD/CFD integration is becoming research focus [5-7].
Automatic simulation for aerodynamic analysis of launch vehicle is achieved by integrating CFD tools, such as CFD-GEOM, GAMBIT, FLUENT, etc.
Mesh parameters determine the quality of mesh model, and seriously impact the accuracy and efficiency of CFD simulation.
Based on the mesh model, engineers can get aerodynamic performance of launch vehicle through CFD simulation.

Numerical Simulation of Ignition of Coke-oven Gas on an Industry Boiler Hongwei Shi1,a , Shuai Wang1 ,Dong Wang1,Xingkai Zhang1 ahongwei.ouc@163.com 1State key lab of multiphase flow in power engineering, Xi 'an jiaotong university,Xi’an,710049,China Keywords: Numerical sumulation ,CFD, finite-rate/eddy-dissipation Abstract：Some coking plants discharge coke-oven gas to the environment,this pollute the air.In order to solute the problem,the paper proposed a method:using coke-oven gas instead of light oil to ignite the boiler.The virtue of doing this was to save energy.Using FLUENT software package to simulate ignition in boiler is a effective mean,it can show the distribution of temperature in the furnace.The simulation result shows that using CFD methods can provide ideas for the operation of the boiler. 1 Introduction Numerical simulation is an effective method for boiler ignition,it can forcast the situation of combustion in furnace.In fact it is difficult to do experiment
for an operating boiler,if to do so the expense of the experiment is high,while the cold test involves some tests,so numerical simulation shows the superiority.
Using FLUENT software package to simulate combustion of coke-oven gas,there are three models:Finite rate chemistry model,Comprnents of hybrid/PDF model and laminar flamelet model. 2.2 Grid generation and simulation method Using pre-processing software of FLUENT ICEM generate O-grids,the grids were shown in figure 1 and figure 2.The grid quality confirm to the requirement of calculation.It can see that the mesh contains 827640 nodes Figure 1 The whole grids of boiler and nodes of mesh Using pre-processing software of FLUENT ICEM generate O-grids[2],the grids were shown in figure 1 and figure 2.The grid quality confirm to the requirement of calculation. 2.2 Numerical result and discussion 2.2.1 The temperature field in firnace The wideth and length of the boiler are 6225mm and 4275mm respectively,the height of the operation flat is 6000mm,the actual height of the furnace is 36000mm,here the simulation cannot conclude coal combustion,so height of the simulation part is set
to 12000mm.The distance of two layer gas guns is 1275mm.The furnace is symmetrical,so the simulation is half of the furnace.
References： [1] ANSYS FLUENT 14.0 User’s Guide,ANSYS Inc [2] ANSYS ICEM CFD 14.0 User’s Guide,ANSYS Inc [3] Che de fu,Zhuang zhengning,Li jun,Wang dong.boiler[M].XIAN: Xi 'an jiaotong university press,2004[In Chinese]