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But their results are without the simulation of air core.
The numerical solutions were carried out using commercial CFD code FLUENT 6.1.
The simulation was realized using a large eddy simulation (LES) for turbulent modeling and discrete phase model (DPM) for particle trahectories calculation.
This study drop 1470 particles at inlet at simulation time 1.9 s.
Fig. 2 shows the particle movement simulation from 1.98 s to 2.50 s.

The program includes the CNC modeling and simulation of the cutting process dynamics in intensive HSC processing conditions.
For CFD (Computational Fluid Dynamics) analysis, we can mention software like: Fluent, Ansys CFX, StarCD and for dynamical structural simulation we can mention software like, Abaqus, Ansys Structural [2].
Stress calculation module and dynamic virtual simulation of bladed part.
The software is linking directly with the CFD modules.
Module for simulation of dynamical behavior of machine tools in cutting process.

Physical model, equations and methodology A commercial CFD package was utilized to calculate airflow and concentration fields.
In order to testify controlling effect of air curtain on contaminants, a laboratory model was built as same as in simulation.
CFD model Particles’ concentration was tested by a METONE 2400 laser particle counter, which could measure particles of Diameter in 0.3 μm, 0.5 μm, 1.0 μm, 3.0 μm, 5.0 μm and 10.0 μm simultaneously.
The location of burning Zang incense located as same as in simulation.
Numerical simulation and analysis of the air curtain for preventing smoke in subway station fire.

Tap arrangement and azimuth for the 1:100 scale wind simulation of the WERFL definition for the 1:100 model of Texas building model test under exposure of 10th percentile.
Fig.2 also shows the face number that will be used later, the position of lines L1 and L2 will be used to compare the mean pressure results of the test and by CFD.
Summary Analysis on non-Gaussian property is necessary for the determination of peak factor, simulation of fluctuating wind pressure and design of cladding and local structures.
Sometimes for the designer, the intensity of non-Gaussian property may be more valuable than merely the division of non-Gaussian zones. 2) What is different from the statistical method is that, since it is originated from the turbulence mechanism, so based on the convenience and reliability of steady CFD simulation, it can be applied on different azimuths and different heights or aspect ratios for the building even when the experimental data is not available.
Wang: An exponential model for fast simulation of multivariate non-Gaussian processes with application to structural wind engineering.

Numerical simulation is done in the reactor and its connecting flue in BMCR working condition by using the standard k-ε turbulence model.
In the process of numerical simulation: adiabatic system; regardless of the air leakage, ash and the chemical reaction; steady flow[3].
This numerical simulation of SCR system has a practical significance to the 330MW coal-fired power plant. 2) Numerical simulation is a useful method for designing and adjustment.
Simulation Optimization on Flow Field of SCR Denitrification Reactors[J].Journal of Chinese Society of Power Engineering, 2010, 30(3): 224-229 [2] W.
The analysis of computational fluid dynamics—principle and application of CFD software[M].Beijing: The Press Of Qinghua, 2004

apingguotree4426@163.com Keywords: disk friction loss,leakage,shear stress on surface,CFD Abstract.
The internal flow fields of liquids in space between casing and rotating disk have been obtained by using CFD.The curves of shear stress on the disk and static pressure on casing wall against radius are also gained in various viscosity and different leakage conditions.The results indicate that the shear stress is influenced significantly by the leakage in the space.The shear stress on the disk decreases with the increase of leakage,especially in small radius.However, the reduction rate of stress gets smaller with the increasing of liquid viscosity.The greater the viscosity is, the higher the shear stress is.The growth of shear stress along the direction of radius is greater than in small viscosity.
M., 1987, “Impeller Shroud to Casing Leakage Flow Simulations in the Space Shuttle Main Engine High Pressure Fuel Pump,” Heat Transfer and Fluid Flow in Rotating Machinery, pp.411-423 [2] Baskharone, E.

To find an optimal die and billet concept, simulations have been performed using the CFD program Flow3D.
Furthermore, the pressure is very low during the whole process but increases very fast at the end of the simulation.
Figure 3: Simulation results of the infiltration process using an open cavity Further simulations were performed using a closed die concept.
Figure 6: Example for simulation results of hybrid semi-finished materials Heating and forming tests of hybrid semi-finished materials.
For the process design CFD-Simulations were performed.

Analysis and Simulation of Air Flow Field Surrounding Grinding Wheel Chunyu Wang1, Lei Zhang1, 2, a and Chunfeng Yang1 1School of Mechanical Engineering, Shandong University, Jinan, China 2Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education asirzhanglei@sdu.edu.cn Keywords: Grinding; Air flow field; Stiff air layer; 3D air flow simulation Abstract.
Based on fluid dynamics and mathematical simulation method, the 3D finite element model of the air flow field around the grinding wheel is developed.
However, the air flow field with the axial direction of the grinding wheel was ignored due to the limitation of 2D simulation.
Simulation The grinding process was performed on a computerized numerical control grinding workbench and a vitrified aluminum oxide wheel was used.
The returning air flow also appeared in two-dimensional CFD simulation (Figure 7) because the physical model and boundary conditions in 2D simulation is based on the grinding with the damper, which is completely different with the tranditional grinding.

The calculation workload for performance simulation of a whole radiator is too huge due to its size.
The all 23 experiments were carried out by numerical simulation method.
CFD software Fluent was used to solve control equations and boundary condition equations. 2.2 simulation results Numerical simulations were carried out to obtain thermal-hydraulic performances of the 23 heat transfer units.
Simultaneously, ideal state was used in simulation and the fin burrs and lodgings were not considered in simulation.
So, this simulation method can be used to investigate the micro effect mechanism.

We can find that the mesh adopted by CSD and by CFD is quite different.
Thus, if the effect of interpolation is not improved, the numerical simulation precision will be directly impacted.
Fig. 3 Surface mesh for aerodynamic computation and structural computation Fig. 4 Contours of the pressure on pressure and suction surface of a fan blade before and after interpolation Fig. 5 Contours of the deformation displacements of a fan blade before and after interpolation In present paper, the linear interpolation methods(LIM) and Constant-Volume Tetrahedron(CVT) approach are adopted to exchange information between CSD and CFD.
The present method also develops linear interpolation method and Constant-Volume Tetrahedron approach to exchange data between CFD and structural computation in a high-fidelity way.
Computer Simulation.