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SOLIDWORKS and MATLAB simulation software were used for the design of the Train Roof-Tops Wind Energy Conversion System (TRT-WECS).
The former was used to perform computational fluid dynamics (CFD) on the both normal train as well as the train having a turbine installed on the top, and a comparison has been made in terms of various parameters that affect the performance of the newly designed TRT-WECS.
Section 5 is devoted to the interpretation of the simulation results and discussion.
To this end, computational Fluid dynamics (CFD) simulation studies have been conducted to enhance the performance and efficiency of the Savonius wind turbine without affecting the rotor's basic construction.
[44] I.Hassan, T.Iqbal, N.Khan, M.Hinchey, V.Masek, CFD Analysis of a Twisted Savonius Turbine , Renewable Energy, 4, (2010), 3–6,

ANSYS software is the financial structure, thermal, fluid, electromagnetic, acoustic at one of the major CAE finite element analysis software, is the first integrated computational fluid dynamics (CFD) capabilities, and is the first developed a multi-physics coupling analysis functions software.
Table 4 The characteristic parameter table of all nozzle models entrances Model No. 1 2 3 4 5 6 7 8 9 X direction of the speed of imports [m/s] 23.0 16.6 13.2 13.6 13.1 26.4 12.5 8.6 8.0 Inlet diameter [mm] 4.3 5.0 5.7 5.6 5.7 7.0 5.8 7.0 7.3 According to the above design load of the external conditions on the model simulation, simulated through ANSYS software and shown in Figure 1 that the fluid velocity clouds within 9 nozzle models, the whole process speed change curves of the center of the models from the entrance to the exit shown in Figure 2, each nozzle can be obtained through statistical maximum value of the flow velocity.
According to the method described above, established the nozzle model according to the structural parameters in Table 6 and experimented the numerical simulation of flow to out from the nozzle model, to get the maximum flow velocity is 5456.1m/s, so can calculate the acoustic noise ratio: It can be seen that the same of with the result of Taguchi method.

., Sapporo-Hokkaido, 005-0864, Japan agr0081se@ed.ritsumei.ac.jp, bthien@cfd.ritsumei.ac.jp, ca.mitani@scu.ac.jp, dhirai@se.ristumei.ac.jp Keywords: Micro-parts Feeding, Saw-tooth Surface Feeder, Experiment.
The dynamic of micro-part have also investigated, including two linear motions and rotation orientation, using an experimental procedure and a proposed simulation model [14].
System Design and Dynamics, Vol. 6, No. 1 (2012) [14] Phuong Le, Xuan Thien Dinh, Atsushi Mitani, and Shinichi Hirai, Experiment and Simulation of Micro-parts Dynamics with Roughness Effect, 2012 IEEE/ASME Int.

In order to calculate the pressure distribution of flow field in gas bearing, the N-S equation and appropriate turbulent equation will be solved with CFD software due to the complicated flowing state in the entrance area under the condition that the thickness of gas film is large.
We can see from the above simulations that the load capacity of ring inlet tapered recess gas bearing is high, especially the tapered recess height can be significantly reduced, its gas volume ratio decreases, and the stability is enhanced as well.
Fig. 7 Tapered recess height on the pressure distribution (P=1.4MPa, r0=0.025mm, hm=40µm, r1=5.025mm, r2=40mm) Fig. 8 Gas film thickness on the pressure distribution (P=1.4MPa,h0=30µm, r0=0.025mm, r1=3.025mm, r2=40mm) Table 1 Tapered recess height on gas volume and load capacity (central gas supply) Tapered recess height [µm] Gas volume ratio Load capacity [kg] 60 19.0381/200.96 (9.47%) 283.8 40 12.692/200.96 (6.32%) 277.2 20 6.346/200.96 (3.16%) 267.2 Table 2 Gas film thickness on gas volume and load capacity (ring gas supply) Gas film thickness [µm] Gas volume ratio load capacity [kg] 40 7.6655/200.96 (3.81%) 269.1 30 7.6655/150.72 (5.08%) 326 20 7.6655/100.48 (7.62%) 368.7 Conclusion On the numerical simulation and experiment about tapered recess gas bearing with two different ways of gas supply, we can get conclusions as below: (1) Under the condition that the clearance is large for the tapered recess gas bearing with central

A finite element tool for structural analysis of composite multi-hull structures have been developed to solve fluid structure interaction by coupling finite element analysis and CFD.
[5] Md Hafizur Rahman, Siyuan Ma, Hassan Mahfuz, Finite element simulation of composite ship structures under extreme wave and slamming loads, GCMS '13 Proceedings of the 2013 Grand Challenges on Modeling and Simulation Conference, 2013, Article No.9

Energy separation phenomena of different gases were investigated by means of three-dimensional Computational Fluid Dynamics (CFD) method.
Grid Model Fig. 2, Gird of the vortex tube The significance effect of numerical calculation accuracy is decided by quality and quantity Grid, thus the grid division becomes a key link with specific conditions in the simulation.
Encrypted grids, which are used in the hot end is shown in Fig. 2, can be clearly seen and its first thickness is 10-6m.At the same time encrypted grids are also put to use for ensuring the accuracy of numerical simulation at hot circumferential end exit and swirl chamber nozzle place.
The mass numerical simulations results indicate that the heat conduction process is relatively slow so that viscosity has little influence during this process.
Acknowledgments I would like to appreciate the support from various sides and extend my sincere thanks to my lab which gave me this opportunity to conduct simulation.

Simulation Three-dimensional geometry of a half section model was applied in numerical simulation taking advantage of the inherent symmetry.
A transient thermal conduction and fluid flow analysis were carried out for the casting process using a commercial CFD package, FLUENT, and the dynamic mesh was applied to simulate the casting process.
Based on the datum from temperature measurements and simulation results, the liquidus and the solidus positions are calculated and demonstrated in the Fig.5 (b).
(1) The results of sump depth measured by temperature recording with thermocouples and by simulation are both thought to be accuracy
And the solid fraction that Cu could diffuse is estimated to be 0.9 according to the numerical simulation result.

Viscosity estimation of semi-solid alloys based on thermal simulation compression tests, Int.
Gouveia, Modeling and Simulation of Maximum Power Point Tracker in Ptolemy, J.
Broadly speaking, there are three types of CFD models for multiphase models, namely, volume of fluid, and mixture and Eulerian model [[] T.
Schreiber, Numerical Simulation of Dense Gas-Solid Multiphase Flows Using Eulerian-Eulerian Two-Fluid Model.
The heat transfer was taken into account for all the cases of numerical simulation.

Some experimental and numerical studies have been conducted for investigating the thermal flow field [2, 3], and it is found that computational fluid dynamics (CFD) is a very effective way to investigate the performance of ACCs [4].
In order to make the numerical simulation manageable, some assumptions are made as follows: · steady-state condition/Incompressible viscous fluids Figure.1.
[3] HW., Krus, JO., Haanstra, R., van der Ham, and B., Wichers Schreur, “Numerical simulations of wind measurements at Amsterdam Airport Schipol,” J Wind Eng Ind Aerodyn, 91, 2003, pp. 1215–1223

The final decision and the selection of the design method for the blade can be made considering different analysis: the criterion of impeller weight, the structural analysis of the impeller, the CFD analysis of the fluid flow through the impeller, etc.
The computer simulations have been performed using a SUPERMICRO workstation with 2xIntel XEON CPU E5-2660v2 with 2x10 core, 2.2 GHz, 128 GB DDR3 RAM, 2x2 TB HDD and video card NVIDIA Quadro K5000.
All simulations with unrefined mesh were performed under 1 minute, while, for the refined mesh, the computing time lasted between 5 and 10 minutes.