Search results

These estimates require the use of parallel technologies for simulation.
The furnace produces almost vertical warm air flow Summary Our numerical experiments demonstrated the effectiveness of air exchange simulation in a large industrial building.
You, CFD simulation and optimization of the ventilation for subway side-platform, Tunnelling and Underground Space Technology. 22 (2007) 474-482
Morozov, The information model of program complex for optimization and control of ventilation system based on direct gas-dinamic simulation, Vestneyk Volgogradskogo gosudarstvennogo universiteta.
Zhumaliev, Formation of transient regimes in the simulation of aspiration flows: Kelvin – Helmholtz instability, Vestneyk Volgogradskogo gosudarstvennogo universiteta.

Major components of the power train are modeled using the simulation software Simulink.
Based on power track control strategy, the simulation results show that the proposed new design method and parameter design theory of electric motors for hybrid construction equipments are reasonable.
Then the optimal conceptual design can then be finalized with the use of FEA and/or CFD.
Major components of the electric drive system are modeled using the simulation software Simulink based on calculation results (see in Fig. 4) [10, 11].
Fig. 4 Simulink model of power train for crawler dozers Simulation is researched based on typical conditions (see in Fig. 5).The simulation results (see in Fig. 6) show that the working points of the motor are mainly in the region of high speed low torque and efficiencies of the motor is between 85%-90% under the transport conditions.

Introduction The need for predictive simulation methods for turbulent flows has led to a significant interest in large-eddy simulations (LES) in recent years.
The large eddy simulation for this problem has been performed extensively by different research groups [14] .
Kolbe, New insights into large eddy simulation, Fluid Dyn.
Fujii, Progress and future prospects of CFD in aerospace —— Wind tunnel and beyond, Progress in Aerospace Sciences, 41(2005) 455–470 [12] Wang Z J.
Blaisdell, A time-implicit high-order compact differencing and filtering scheme for large-eddy simulation, Int.

Here we used the turbine power plant which developed by Shanghai Ocean University as simulation prototype.
Simulation Model Parameters We used the horizontal wave flow turbine power plant developed by Shanghai Ocean University for simulation.
Table 2The boundary settings of the numerical simulation No.
Three-dimensional Numerical Simulation on the Flow Field of the Vertical Axis Tidal Current Turbine[J].
The Design of Horizontal Axis Wind Turbine Blades and the Analysis of Flow Field based on CFD[J].

The piezoelectric domain, structural domain and fluid domain are coupled in the simulation.
COMSOL Multi-physics and simulation analysis COMSOL Multi-physics.
Simulation and analysis.
All of the simulations are done in 2D models to evaluate pumpuing performance of the present micropump with respect to divergence angles of diffusers.
Przekwas: Coupled Fluid-Thermo-Structures Simulation Methodology for MEMS Applications (CFD Research Corporation) [7] J C Lotters, W Olthuis, P H Veltink and P Bergveld: The mechanical properties of rubber elastic polymer poly dimethylsiloxane for sensor application (J.

Use of CFD can provide non-invasive tool to evaluate the impact of decreased cabin pressure on ear lobes as well as sinuses and help provide solution to overcome the discomfort.
Besides, there are several studies on the aerosol deposition patterns in upper airways using CFD [28-30].
Johnson, Numerical simulation of aerosol deposition in a 3-D human nasal cavity using RANS, RANS/EIM, and LES,Journal of Aerosol.
Ahmad, A critical overview of limitations of CFD modeling in nasal airflow, Journal of Medical and Biological Engineering. 32:2(2012)77-84
Xu, Numerical flow simulation in the post-endoscopic sinus surgery nasal cavity,Medical & Biological Engineering & Computing.46(2008)1161-7

The Simulation and Comparative Analysis of the Different Structure of Cyclone Separator, and the Construction of Optimal Experimental Model Ning Xu1,a , Yue Xu2,b 1.
During trajectory simulation, the coal dust was set as particles and the computed fields were segmented and grid meshed, and computed using pressure base solver.
The simulation of dynamic pressure and static pressure in the optiaml cyclone separator were shown in Fig.6.
After stimulation of the internal pressure convective cloud, the XY curve was drawed using CFD software.
Simulation of mass-loading effects in gas-solid cyclone separators.

Factors Affecting the Performance of Molten Salt Heat Receiver Peijuan Li1, a, Yuting Cheng1,b and Shi Liu2,c 1School of Power, Energy and Mechanical Engineering, North China Electric Power University, Beijing 102206,China 2 School of Control & Computer Engineering, North China Electric Power University, Beijing 102206,China alipeijuan1234@sina.com, bcytko@126.com, cliushi_ncepu@yahoo.com.cn Keywords: Tower solar power; Numerical simulation; Molten salt receiver Abstract.
The computational fluid dynamics (CFD) software was applied to numerically simulate the wall thermal conductivity and heat convection of the molten salt flow.
Numerical Simulation Results Temperature Distribution and Velocity Distribution of Molten Salt in the Heat Receiver.
In Figure 3, and Figure 4, the molten salt inlet flow rate of l.8m / s, inlet temperature of 585K, the distribution of radiation heat flux to change with the axial direction , which is shown in Figure 2. it is achieved by the udf(User Defined Function) in the numerical simulation; Fluid properties of molten salt changes with the temperature.
Figure 6 shows the result of numerical simulation, with velocity of molten salt in heat receiver increasing, temperature difference from inlet surface to outlet one reduce in parabola relation.

Green Simulation and the Corresponding Modeling Method In the design field, product design is a very complicated work.
Take green building for example, green simulation and the corresponding modeling method is illustrated.
Now these problems have been fully taken into account in the design stage through fine analysis technique based on the computer numerical simulation.
green building construction plans architectural design electrical equipment professional design main structure professional design equipment construction simulation equipment operation simulation structural stress calculation structural construction simulation wind environment simulation energy consumption simulation light environment simulation acoustic environment simulation emergency processing simulation Fig.3 The computer-aided decision-making system of green building Green Monitoring and the Corresponding Monitoring Content In the past, people put more emphasis on the end of the pollutant control and treatment, while the whole process monitoring and prevention of pollutants are ignored.
Xiang, Application of numerical simulation technology in the design of green building, Focus of attention, 11(2013):26-31 [5] Z.

Numerical Simulation of Driven and Pressure Flow in Compound Shaped Part of Co-extrusion Process of Polymer with Metal Insert S.X.
The simulation results are very important for the process and die design of the polymer co-extrusion with metal insert.
Having distinct advantages in improving efficiency and saving cost, Computational Fluid Dynamic (CFD) has been more and more widely used in many fields in industry [2, 3, 4, 5, 6].
A flexible PVC material with a constitutive relation of power-law is selected for the numerical simulation.
The analysis in this paper is computed with 0u = , and the simulation is also developed with 0.03u = m/s.