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A Simulation Study of Flow and Pressure Distribution Patterns in a Two Stage Three Bucket Savonius Vertical Axis Wind Turbine Micha Premkumar T1, a, Seralathan S2, b, Ravikumar T S3, c and Jayagopal J4 1,2,3,4 Department of Mechanical Engineering, Hindustan Institute of Technology and Science Hindustan University, Padur 603 103, Tamil Nadu, India atmichamech@gmail.com, bsiva.seralathan@gmail.com, cravikumar@hindustanuniv.ac.in Keywords: CFD, two stage, three bucket, Savonius wind turbine.
Conventional Savonius vertical axis wind turbine and Dimensional details of SVAWT Numerical Methodology The numerical simulation is carried out with the commercial CFD code, ANSYS CFX 13.0©.
ANSYS ICEM CFD 13.0© is used to generate unstructured grid with tetrahedral elements in the computational domain along with flat prism shaped cells introduced near the wall.
Sunanto, Computer simulation studies on the effect overlap ratio for savonius type vertical axis marine current turbine, Int.
[15] Ivan Dobrev and Fawaz Massouh, CFD and PIV investigation of unsteady flow through Savonius wind turbine, Energy Procedia 6 (2011) 711-720

The hydrofoils were tested through computational fluid dynamic simulation.
The inlet speed is varied accordingly for different simulations.
Through repetitive iterations and rotations of the blades during simulation determined that after 3 revolutions the results become steady shown in Fig 2.
CFD results have slightly under predicted the torque, since the CFD geometry did not have an axial shaft and frame as shown in Fig. 4.
CFD predicted maximum torque of 2.9 Nm at 40 rpm.

Comparisons were made between CFD model and weakly non-linear KdV theory, it was shown that the wave amplitude predictions by the CFD model agreed well with the KdV equation.
Introduction With the development of computer technology and numerical simulation methods, numerical wave tanks based on the computational fluid dynamics (CFD) model have been widely used in the studies on the propagation of waves and the interaction between waves and structures [1-3].
Model Application and Simulation Method Numerical Wave Tank Design.
Therefore, the proposed CFD model was capable of simulating the propagation and evolution of internal solitary waves with high precision.
According to the numerical simulation, the convergence flow and divergence flow on the water surface caused by the generation and propagation of internal waves were successfully captured.

The fluid cooling of these models is not represented by a single heat transfer coefficient but an actual Computational Fluid Dynamics (CFD) simulation.
Models with a CFD simulation of the fluid cooling so far always possess only a simplified thermal model.
In this paper a detailed thermal model of a spindle is combined with a holistic CFD simulation of the cooling system.
The internal fluid cooling in the housing is to be simulated separately based on CFD method.
As heat sink the ambient air and the fluid cooling (as separate CFD simulation) were taken into consideration.

The simulation results obtained are in agreement with the experimental results of Liu et al. [18].
Conclusions 2D simulation of fluidised bed reactor is carried out for biomass gasification in fluidised bed reactor.
Results obtained from the simulation are compared with experimental values.
Bridgwater, CFD modelling of the fast pyrolysis of biomass in fluidised bed reactors.
Shah, Modeling and simulation of an entrained flow coal gasifier.

Numerical and experimental analysis on indoor thermal environment in commercial kitchen Dahua Jiang1,2,a Zhihua Wang3,b Faen Shi1,c Rushan Ren1,d 1 Jiangxi University of Science and Technology,Ganzhou,341000,China 2 Xi’an University of Architecture and Technology,Xi’an,710055,China 3 Xi'an Jiaotong University,Xi’an,710049,China adahua7723@163.com, bwzhhgd3210@163.com, cshifaen@163.com, drenrushan@163.com Keywords: CFD; Kitchen ventilation; Up-suction hood ; IAQ Abstract.
This study aims investigate and analysis the indoor air quality of kitchen with using CFD numerical analysis method via the velocity, temperature, humidity CO2 concentration .It is concluded that The temperature distribution are large difference in the kitchen and the maximum value is up to 324K on the work area which near the cooking ,and the CO2 concentration which is close to the stove is 1420ppm,1370ppm, 1470ppm respectively, and it is more than the acceptance criteria (CO2<1000ppm) 42%,37% and 47% respectively.
The aim of this paper is to investigate the indoor air quality in commercial kitchen using CFD code and field test in order to probe the factor of IAQ under the condition of natural and mechanical exhaust.
Experimental results.To prove the validity of the simulation results, an experiment was conducted.
Journal of Hebei Institute of Architectural Science and Technology,2005,22(3):24-26 (in chinese) [4] Wan Xiongfeng,Yu Likui and Hou Huabo.The Improvable Strategies of the Influence of Kitchen Fumes to IAQ[J].Building Energy&Environment,2005,24(3):27-31(in chinese) [5] Dahua Jiang, Angui Li, Faen Shi.Numerical Simulation of IAQ under Up-suction Exhaust Hood in Commercial Kitchen[J].

az3290491@student.unsw.edu.au, bt.barber@unsw.edu.au Keywords: Aerodynamics, ground effect, reference frame, CFD.
With an extra boundary nearby it becomes harder to appropriately match the experimental set-up with reality, and the extra boundary condition also adds complexity to computational simulation.
This principle has led to the commonly accepted system of aerodynamic simulation, using either a body-fixed wind tunnel or body-fixed CFD situation to simulate the real-life case of a body moving through a fluid.
It is straightforward to simulate both a stationary body within a moving fluid, and a body moving in a still fluid with the CFD software Fluent.
The flowfields of an aerofoil in ground effect included a number of interesting features which were highlighted by the body-moving simulations.

ayaozq_just@126.com, bonedollar1@sina.com, c249662902@qq.com Keywords: Ducted propeller, PBCF, Hydrodynamic performance, Numerical simulation.
Numerical Simulation Model.
Fig.2 Division of the compulational domain Fig.3 The grids of duck Mesh is the most important process of CFD simulation calculation, its quality directly affects the precision and efficiency of computation.
The analysis of numerical results The validation of numerical simulation.
[3]OU Li-jian, AN Yuan, The Research Based on CFD of Hydrodynamic Performance for Ducted Propeller, Science Technology and Engineering.2010.7

Computer Simulation of Centrifugal Casting Process using FLOW-3D Aneesh Kumar J1, a, K.
Hence, in the present work, the commercial CFD code FLOW-3D™, has been used to simulate the mold filling sequence for a simple hollow cylindrical casting during vertical centrifugal casting process.
Hence in the present work, the commercial CFD code FLOW-3D™, has been used to simulate the mold filling sequence of a simple hollow cylinder casting during vertical centrifugal casting process.
The total number of voxels are 4.4 million with a mesh size of 2 mm which is the optimum mesh size for the current simulation.
Heng-zhi, Numerical simulation and experimental investigation of two filling methods in vertical centrifugal casting, Trans.

Numerical Simulation of Air Distribution and Particle Movement in a Displacement Ventilated Room Zebei Wang 1,a, Baoqing Wang 1,b, Ronghui Chen1,c, Shu Yao1,d College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China a411173744@qq.com, bwbqchina@163.com, c13609223@njau.edu.cn, dmadkon@qq.com Keywords: displacement ventilated room, numerical simulation, air movement, particle distribution Abstract.
In this paper, the air movement and particle distribution in a displacement ventilation room is studied and analyzed through CFD numerical simulation method.
Results and discussions This paper selects two typical surfaces to describe the results of simulation, including X=1.65m which respects the profile through the center of room; X=0.6m which through the virtual human body.
Conclusions A CFD-based ventilation test method is presented in the study.