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For this basic investigation, the simulations were solved for the 2D case.
It is shown below that the assumed pressure distributions in the analytical solutions of the previous section are not confirmed by the CFD simulations, and this has a direct consequence on the results computed with the momentum equation.
To evaluate the simulation results, the pressure distribution from the CFD computations was used to calculate the analytical momentum equation pressure term in the horizontal direction.
Result of vertical outflow simulations The small deviations between the analytical and CFD results for the horizontal and vertical outflow shown in Fig. 6 and Fig. 9 respectively are slightly different in magnitude.
numerically using the pressure distributions from the CFD simulations, what might introduce slightly different errors.

Calculation of theCoefficients of Ship’s ResistantForce in MMG Model Based on CFD Linjia Yang1, a,Yihan Tao2,b 1Navigation College, Dalian Maritime University, China 2 Graduate school of Dalian Maritime University，China ayanglinjia@126.com, btiter_1@163.com Key words:ship’s resistant coefficients, CFD, MMG Abstract:With the rapid development of computer, computer simulation is a reasonable way to study the maneuverability of a ship.
In this numeric simulation, Re is larger than 150.
The 3D model of YUKUN was built in pre-processing software ICEM CFD.
Afterwards, import the 3D model into ICEM CFD to mesh regionally with hexahedral meshes.
Besides making ship maneuvering simulation closer to real motion, CFD method can also make ship controllers, which are design on computer simulation, more adaptive to actual situation.Along with the CFD application gradually popularization and the development of the computer hardware, CFD will also be used to make some simulationsthose traditional experimental methodscan hardly make.

Numerical simulation of a vertical axis wind turbine for urban use Ion MĂLĂEL1, a,Lucas MOUTET2, band Valeriu DRĂGAN3,c 1Romanian Research & Development Institute for Gas Turbine, 220D Iuliu Maniu Ave. 061126 Bucharest 6, Romania 2 Ecole Nationale Supérieure des Ingénieurs en Arts Chimiques et Technologiques, 4 Allée Emile Monso 31030 Toulouse cedex 4, France 3Romanian Research & Development Institute for Gas Turbine, 220D Iuliu Maniu Ave. 061126 Bucharest 6, Romania aion.malael@comoti.ro, blucas.moutet@ensiacet.fr, cvaleriu.dragan@comoti.ro Keywords: CFD, VAWT, NACA, TSR Abstract.This paper presents a detailed CFD analysis of an H-type Darrieus VAWT of 1.5 kW.
In order to estimate the aerodynamic performance of the turbine, a series of quasi-2D CFD analyses were carried out with the Ansys Fluent solver using URANS method for time and hardware reduce for one CFD analyze.
a) b) c) d) Fig.7– Vorticity magnitude field at different θ angles: a)0 degree, b)30 degree, c)60 degree, d)90 degree Conclusion and future works In this paper a CFD numerical simulation was carried out on a VAWT with a yielded power of 1500 W.
For the airfoil choice, a series of preliminary CFD tests were done to compare the drag polar plots of various airfoils.
Future work could extend this study to a 3D simulation with CFD methods and verified the results with the data from an experimental model in a wind tunnel facility.

Performance Study of Structure Improvement Design for Storage-type Domestic Electrical Water-Heaters based on the CFD Simulation Zhijun Zhanga , Shiwei Zhangb, Chenghai Xu c School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China a zhjzhang@mail.neu.edu.cn, bshwzhang@mail.neu.edu.cn, cxch1940@126.com Keywords: Electric Water heater, utility efficiency, Structure improvement, CFD, Simulation Abstract: The 3D physical model with two different structure of the electrical water heater was built.
The performance of water heater was studied by computer fluid dynamics simulation (CFD).
But the computer fluid dynamics simulation (CFD) was simply and low cost, and could be easily shown single factor effect.
The objective of this investigation is to examine the performance of domestic EWHs by CFD simulation method.
The performance of water heater was studied by computer fluid dynamics simulation (CFD).

Simulation and Analysis of Formula Racing Car Double Tail Based on CFD Technology Ning Kang1, a, Yang Yang1,b 1School of Transportation Science and Engineering, Beihang University, Beijing, 100191, China akangning@buaa.edu.cn, bkeithyoungrsr@hotmail.com Keywords: Aerodynamics, Lift, CFD, Double Tail Abstract.
CFD technology has been widely used in racing car.
Half car model along the longitudinal plane of symmetry was used in the simulation.
The surface mesh is shown in Fig. 4. 1.4 Boundary Conditions In order to get a more accurate simulation, a moving ground plane and rotating wheels are considered.
Gao: Aerodynamic Shape Design of FSC Car Body Based on CFD Technology.

3D Simulation of Gas–Liquid Two-Phase flow in an Aeration Tank W.L.
Even biokinetic models have been successfully incorporated in CFD simulations (Le Moullec et al., 2010; Zima et al., 2009).
Hydraulic study and optimisation of water treatment processes using numerical simulation.
Oxygen transfer prediction in aeration tanks using CFD.
CFD simulation of the hydrodynamics and reactions in an activated sludge channel reactor of wastewater treatment.Chemical Engineering Science 65 (1), 2010 ,492-498

CFD Simulations The model of the electric hob with one heating element was created in software ANSYS Fluent.
Results and Discussion The computational domain of CFD simulation is located in the intermediate zone of the thermal plume.
The results from CFD simulations for the surface heat source with diameter ϕ100 mm and input power 1500 W indicate conical shape of the thermal plume rising above the hot surface of the heat source.
The results from the CFD simulations show good consistency with the standard DIN 18869 at heights 0.5m and 1.2 above the hot surface.
Summary The results of our CFD simulations showed good consistency with the German standard DIN 18869.

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.

At present, the CFD numerical simulation, combined with an experiments involving heat transfer has become an important approach to studying coal carbonization.
Our simulation results for the coke oven model are in agreement with experimental and virtual data.
The primary objective of this research is to numerically study carbonization processes using two-dimensional (2D) CFD.
Therefore, CFD simulation can help optimize the design of the coke oven and identify conditions which can improve the oven throughput and fuel conversion efficiency.
Typical grid used for simulations (45 × 300) Mesh used in the CFD modeling is shown in Fig. 1.

There have many measures to improve the defrosting capacity, including experiment, CFD numerical simulation analysis and so on.
The discrepancy of the result about the CFD numerical simulation analysis and experiment in 5%, and the discrepancy could be accepted [3].
There have discrepancy between the result of the CFD numerical simulation analysis and experiment, but the discrepancy in 5%,this discrepancy is considered reasonable.
Using the CFD numerical simulation and doing some experiments to validate it.
There have some discrepancy could be found from the CFD numerical simulation analysis and the experiment result, but the discrepancy in 5%, this discrepancy can accept.