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Simulation result shows the predicted PCM temperature at first and last layer closely match with the analytical data from CFD.
CFD 600Sec. 0.000321Sec.
Table 1 shows RBFNN model calculated first and last layer PCM comparison sample with CFD model, it can observed that the accuracy of the RBFNN and CFD has same superior when compared to each other based on mean average error (MAE).
Both Matlab software and CFD software has been used to get the data for training and testing.
The Simulation results show that Better performance was obtained with RBFNN for reduction of the effort and time required determining the temperature in PCM as compared with CFD.

Parametric Numerical Simulation of Mean Wind Loading on Stadium Cantilevered Roofs Ying SUN1,a, Bo XIANG1,b, Bin LIN2,c and Yue WU1,d 1School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China 2Beijing Construction Procuring & Contracting Trade Center, Beijing 100083, China asunnyhit@hit.edu.cn, bshunzihit@gmail.com, clbhit@163.com, dwuyue_2000@163.com Keywords: numerical simulation; cantilevered roofs; mean wind pressure; Computational Fluid Dynamics Abstract.
Studies on the characteristics of the mean wind load acting on the cantilevered roofs are carried out systematically by CFD (Computational Fluid Dynamics) numerical simulation.
Numerical simulation method RANS simulations are carried out using a commercial CFD code, FLUENT.
During simulation it is set that the numeral calculation is convergent when the residuals is less than as well as the mean pressure coefficients is steady.
In order to compare the numerical simulation results to that of wind tunnel test, the models are defined with the same size with wind tunnel model which can be refered to [4].

In the present work, the commercial CFD code FLOW 3D™, has been used to simulate the mould filling and solidification during the LPC process.
Such variables can be easily optimized using simulation techniques.
The present study uses FLOW 3D™, which is a finite difference method (FDM) based commercial computational fluid dynamics (CFD) code for analysing fluid flow and heat transfer occurring throughout the LPC process.
Initial and Boundary conditions The pressure sequence used for the simulation is depicted in Figure 1(b).
For solidification simulation only the energy equation is solved including phase change.

Simulation results have shown that the sand erosion rate on pressure side is more than on the suction side of the blade.
Unsteady numerical simulations, based on the two-phase homogeneous model, are performed together with wall pressure measurements and flow visualizations.
OpenFOAM is an object-oriented C++ library of classes and routines of use for writing CFD codes.
It has a set of basic features similar to any commercial CFD solver, such as turbulence models and discretization schemes.
Numerical simulation of turbidity current flow and sedimentation: I.

CFD can be used to predict operation rule of air curtain used in the cold store intuitively and modelling is the most important part of numerical simulation of air curtain used in the cold store.
Computational fluid dynamics, CFD has become an effective tool to study the air curtain because the air flow field and temperature field are difficult to measure when the air curtain is working because CFD can be used to analyse physical phenomena including fluid flow and heat transfer, and the air flow field and temperature field of air curtains can be simulated visually and quickly by CFD.
Conclusions were drawn as follows by comparing the simulation results and experimental results: （1） The simulation results predicted by the standardmodel were better than those predicted by the RSM through the comparison of the simulation results and experimental results.
Proficient in CFD engineering simulation and case of actual combat[M].
Numerical simulation and verification of airflow in cold-store[J].

The predicted Mach number distributions fit with the CFD results very well, that proves the efficiency of this strategy.
Let are sets of sample data generated by numercial simulation or experiments.
Fig. 5 shows the corresponding Mach number distributions calculated by the CFD code at both moments.
From comparison of these two figures, the predicted results fit with the CFD results very well.
Mistree, Kriging Models for Global Approximation in Simulation-Based Multidisciplinary Design Optimization, AIAA Journal. 39 (2001) 2233-2241

Hanjalic et al. developed a CFD technique to simulate the near-wall eddy current.
As previously mentioned, CFD is an interesting and useful tool in designing of a intake manifold.
Most of manifold designs by utilizing CFD techniques were widely done by just considering only steady flow.
Beside the manifold wall of the air flow path, the boundary conditions of the flow inlet and six outlet surfaces as shown in Fig. 1 were identified by the simulation results from a cycle simulation program, “AVL Boost”.
Transient CFD techniques will be crucial to future improvement of intake manifold design.

A Novel Piezoelectric Valveless Micropump with an Integrated Diffuser/Nozzle Bulge Piece Design Tsung-Hsing CHAN 1, Chiang-Ho CHENG1, a, An-Shik YANG2, b and Li-Yu TSENG2 1 Department of Mechanical and Automation Engineering, Da Yeh University, Chang Hua 515, Taiwan 2 Department of Energy and Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei 106, Taiwan a chcheng@mail.dyu.edu.tw, b asyang@ntut.edu.tw Keywords: Valveless micropump, Piezoelectric actuator, CFD simulation, MEMS.
In the analysis, the computational fluid dynamics (CFD) software ACE+® was utilized to examine the time-varying flow phenomenon in a full-scale PZT micropump throughout an actuation cycle.
Numerical simulations were also conducted to study the time-varying flowfield encountered inside the micropump.
Theoretical Model Simulations were conducted using the ESI-CFD ACE+ ® computer software to explore the internal flowfield in a piezoelectric valveless micropump.
Results and discussion In simulations, Fig. 3 shows the numerical grids of a full-scale piezoelectrically valveless micropump.

The momentums of the particle size distribution are evaluated using the local flow conditions as obtained from CFD simulations for the processes considered.
The main advantage of this approach is that analytical expressions (including probabilistic parameters) for the characteristic magnitudes could be derived, leading to successful simulations through common and rather simple CFD techniques.
Note that u can be obtained from the CFD flow calculations.
Simulations The flowchart of the simulation algorithm is shown in Figure 1.
The size of the digitized domains is 102×102×102 and the length of the simulation box is ten times the sphere radius.

Numerical Simulation Research on Coal Combustion Lixia Ren1, a, Hongwei Lu1, b, Peng Du1, c 1Sino-Canada Resources and Environmental Research Academy, North China Electric Power University, Beijing, 102206, China arenlixia381173896@163.com, bluhw@ncepu.edu.cn, cpengdu52008@163.com Keywords: Pulverized coal, Combustion, Numerical simulation Abstract.
The comparative study of numerical results on pulverized coal combustion process with CFD has become an important measure for direct engineering practice.
The simulation results showed that the rules of the volatile releasing and combustion processes of coke could provide important references to improve the combustion of the pulverized coal.
Numerical simulation for coal combustion Simulating objects In this paper, a combustion facility was simulated numerically with the Fluent code to investigate the process of coal combustion, by introducing a mixture of pulverized coal and hot air stream.
In summary, the simulation results showed that the reference conditions could be helpful for the study of desulfurization and denitrification by analyzing correlative factors in pulverized-coal-fired systems.