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Considering the hybrid ventilation, analysis on the indoor temperature distribution are depended commonly on field-measurement and numerical simulation.
D.Song described a concept of a hybrid cooling system using radiational panel cooling with wind-induced cross ventilation and investigated its characteristic using CFD simulation in an office setting.
Both experimental and CFD approaches were used for this purpose.
However, mechanism of the hybrid ventilation can not be described closely by experiment and CFD.

With the rapid development of computer technology in recent decades, applications of computational fluid dynamics (CFD) have been speeding up in a variety of industries.
Simulations with different conditions were performed as shown in Table 2.
Performed simulations with different conditions.
The results of computer simulations.
Compared with simulation 3, infiltration time is reduced with 17.6%.

Simulation of LED products was shown in Fig. 1(b), where an thermal via was also effective to the heat dissipation.
Fig. 1 Numerical simulation of LED Experimental procedure Fig. 2(a) showed the test vehicles embedded with thermal via, where the sizes of via were ranged 0.2~0.8mm and the pitches were 1~5mm.
Aizar Abdul Karian, Thermal analysis of LED package, Microelectronics International(MI) 23/1 (2006) 19-25 [6] Victor Adrian Chiriac, Tien-Yu Tom Lee, Thermal Assessment of RF Integrated LTCC Front End Module (FEM), Inter Socitey Conference on Thermal Phenomens, 2002 [7] Darvin Edwards, Paul Hundt., Thermal Performance of Tape Based Ball Grid Array Over Molded Packages, IEEE, 1998, Page 738-743 [8] Evaluating Thermal Characteriaztion Accuracy Using CFD Codes-A Package Level Benchmark Study of Icepak and Flotherm, Bret A.Zahn, IEEE, 1998, Page 322-329 [9] Thermal Analysis of High Power LTCC LED with different Heat-via

Current design practice is mainly empirical and simulation, but both of them have dissimilarity.
Meanwhile the numerical method, such as the Boundary Element Method (BEM), Computational Fluids Dynamic (CFD) and the Finite Element Method (FEM) are widely used in commercial software [2-4].
Fischer, Acoustics Simulation of Exhaust System by Coupled FEM and Fast Multipole BM, Twelfth International Congress on Sound and Vibration, Department of Mechanical, Polytechnic Institute and State University, (2005) [4] T.W.

Fig. 2 NOx emission curves under Fig. 3 Exhaust temperature change under Nitrogen-enriched condition nitrogen-enriched condition Simulation analysis of nitrogen- enriched engine performance In 2008, Jinjin Deng[11] analyzed the process of nitrogen enriched combustion and she used the simulation software GT-POWER to build the combustion model in order to simulation the enriched nitrogen combustion process.
Numerical simulation of nitrogen-enriched intake air in intake，compression and combustion process was performed with CFD software.
As shown in the figure 11, simulation results illustrate that upright straight intake generate tumble motion that the direction is opposite to the previous engine.
As shown in the figure 12, simulation results show that the special shapes combustion chamber can meet the requirements of the stratified air intake better.
Numerical Simulation Study of Nitrogen-richened Air Combustion Process and Emission in Diesel Engine.

At present, the structural analysis on the noise barrier of high-speed railway at home and abroad have been developed very well, including the theoretical researches and numerical simulations.
To increase the simulation efficiency, the model must be simplified to some extent, such as getting rid of the pantograph and shortening the body-length.
Analysis Procedure This simulation need to transfer the result of fluid analysis as load to the structural analysis module, however, the structural deformation is so little compared to the whole computed field that the influence to fluid can be neglected, so this simulation belongs to the one-way FSI.
Secondly, the simulation could be carried on followed the constraints and loads are applied on the model of noise barrier, after the dynamic analysis finished, the simulation will step into the modal analysis to solve the modal distribution of noise barrier. 3.
Numerical Simulation and Analysis of High-Speed Railway Noise Barrier Aerodynamic Pressure.

This research was conducted with numerical simulations on wing airfoil NACA 43018.
Simulation Domain and Boundary Conditions.
Domain Simulation a.
One of the considerations in performing numerical simulations is the time and memory used, so the meshing used for the next simulation is Meshing A.
Badrya, Title of dissertation : CFD / Quasi-Steady Coupled Trim Analysis of Diptera -type Flapping Wing MAV in Steady Flight Department of Aerospace Engineering, (2016)

Thermal simulation analysis based on Star CCM + Cooling computational model.
In order to calculate its heat and carry temperature simulation, simplified the structure of the capacitor to two parts of internal capacitance and the shell of capacitance.
After establishing the monomer condenser cooling model, the cooling air duct of capacitor package needed to be designed, in order to use for the simulation calculation.
Time Fig.11 Temperature distribution data of super-capacitor Conclusion （1）Analysis of the heat mechanism of capacitor, a thermal model and three-dimensional grid of the capacitor were built, the corresponding boundary condition were applied, completed the temperature and uniformity of CFD simulations of capacitor package and experimental verification.
Compared simulation results and experimental data, which was consistent, which proved the correctness of the simulation model

Fig. 2 shows the verification of the DCB-specimen simulation, which was compared to the DCB-test results [8].
The numerical simulation shows good coincidence with the experimental results, and the material models can therefore be transferred into the design of more complex structures.
Fig. 2: Simulation and results of DCB-test In the next step, a basic profile was developed allowing technological studies on more complexly shaped structures.
Fig. 6 shows the good reproduction of the observed failure behaviour under three-point bending load of tested profiles to the simulation.
Fiolka, Berechnung fortschreitender Risse in Laminaten, 23rd CADFEM Users' Meeting 2005, International Congress on FEM Technology with ANSYS CFX & ICEM CFD Conference, 09.-11.11.2005

Computer Simulation Environment was rarely used to analyze the indoor and outdoor environment.
In this case, we used the Computer Simulation Environment technology combined with regular design methods.
Fully-buried sewage treatment facilities can achieve the goal of zero discharge of sewage. 4 Computer Simulation Environment analysis 4.1 Evaluation of outdoor wind environment simulation Fig.3 The campus on the summer wind speed simulation vector diagram Fig.4 The campus on the winter solstice sunshine hours simulation diagram Fig.5 Overall daylight simulation on fourth floor of typical teaching building In order to examine how the layout form influenced the wind environment, the wind environment simulation is done by CFD (Computational Fluid Dynamics) software Phoenics 2009.
The outcome of the simulation shows that average sunshine hours were 4.38 hour per day.
The new campus is proofed to be with high quality of daylight in the classrooms. 4.4 Solar radiation simulation Fig 6.