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The feasibility of the demonstration project of boiler flue gas treating wastewater on 4# boiler in Changshu Power Company limited was analyzed; the computational fluid dynamics (CFD) software FLUENT was adopted to simulated the pressure field and velocity field in the outlet flue pipes of air pre-heater.
Schedule of the droplet size and the settling velocity droplet size（μm） settling velocity（m/s） 10 — 30 — 60 0.09 100 0.21 137.5 0.32 171.4 0.54 Simulation of the Flue Gas Flow Conditions In the process where the wastewater is atomized and sprayed into the flue gas, the mixture of the droplet and gas is the prerequisite of the effect of waste water evaporation, which is also the basis of the nozzle arrangement.
In preliminary studies, combination with the research of the mixing process of our group and the experience in the process of desulfurization denitration development, The large commercial computational fluid dynamics (CFD) software FLUENT was adopted to simulated the flue gas flow conditions in the outlet flue pipes of air pre-heater.

Research on Mathematical Model of Liquid-Continuous Impinging Streams Fubao Lia, Wei Shab and Qin Lic Shenyang University of Technology, Liaoyang, 111003, China aprf_fubaoli@126.com, bshawei0713@126.com, cprf_qinli@126.com Keywords: Liquid-continuous, Impinging streams, Mathematical model, Numerical simulation.
It, primarily, established the mathematical model of Liquid-continuous impinging streams through analyzing the physical characteristics of flow field of Liquid-continuous impinging streams.Then it obtained the locus function, velocity function and pressure function of Liquid-continuous impinging streams though solving equation of the model.Finally it made a numerical simulation about Liquid-continuous impinging streams by using CFD software.The result of numerical simulation and the analysis about flow characteristic suggests that the mathematical model established by this paper is appropriate for describing the flow field of Liquid-continuous impinging streams.
Simulation of Flow Field of Liquid-continuous Impinging Streams In this paper, the flow field of LIS is simulated.
Environment of flow field is: the interval of nozzle is 0.2m, namely B=0.1m; the diameter of nozzle is 5mm; the inlet-boundary is velocity-inlet and the numerical value is uf=2m/s; the outlet-boundary is outflow; numerical algorithms choice Pressure-Based; viscous model choice standard k-ω; solution method choice second order SIMPLEC. the medium of simulation is water.
(3) The result of simulation of the flow field specified parameter is coincide with the result obtained by mathematical model, then it indicate that the mathematical model established in this paper is fit exactly for describing the flow field of Liquid-continuous impinging streams.

Hu has studied the temperature distribution of battery pack using CFD (computational fluid dynamics), and recommended a new cooling strategy for battery pack[11].
In this study, the steady simulations were carried out using a commercial CFD code – FLUENT.
The standard k-ε turbulence model was used for the simulation of convection, and 3 dimensional heat conduction was included.

We also used CFD (computational fluid dynamics) simulation to verify the flow conditions for the new geometry.
We then used CFD simulation (Ansys CFX) to verify the flow conditions.

In this paper, we get the features of wind field of special topography by studying a two-dimensional model of a typical hillside, and using CFD numerical simulation.
Considering the full development of the turbulence and the impact of the size of the wind field simulation, we use 20 × 10Djet computational domain, the initial injection inlet position is defined as the distance to the ground H / D = 4, the computational domain of geometric proportions with Hangan [6] The computational domain is consistent .
[2] Proctor Fred H.Numerical Simulations of an Isolated Microburst.Part I:Dynamics and Structure[J].Journal of the Atmospheric Sciences.1988,45(21):3137-3160
[5] Jongdae Kim,Horia Hangan.Numerical simulations of impinging jets with application to downdrafts[J].Journal of Wind Engineering and Industrial Aerodynamics,2007,95(4):279- 298
[6] Mason M.Physical simulation of thunderstorm downbursts[D].Masters thesis,Lubbock(TX, USA):Texas Tech University,2003.

Simulation Study on Indoor Pollen Removal with Variable Exhaust Angle of an Air Purifier Akinori Hashimoto1,a and Toshiki Takahashi2,b 1Human Resources Cultivation Center (HRCC), Gunma University, 1-5-1 Tenjin-Cho, Kiryu 376-8515, Japan 2Faculty of Science and Technology, Gunma University, 1-5-1 Tenjin-Cho, Kiryu 376-8515, Japan at10802401@gunma-u.ac.jp, bt-tak@gunma-u.ac.jp Keywords: Pollen removal, Air purifier, CFD, LES, GPGPU Abstract.
The present simulation model is schematically drawn in Fig. 1.
We carry out the LPT simulation and LES by GPGPU based on CUDA.
Therefore we have accelerated the simulations using GPGPU to increase simulation research efficiency.
The LPT-LES coupling simulation using GPGPU (NVIDIA GTX 780 based on CUDA) has become 18 times faster than the same simulation on the CPU.

Based from the simulation result, majority of the stress concentrates around the area between shaft and insert hole portion.
Overall, the simulation result is always severe compared to theoretical calculation.
Literature review Bernoulli’s energy equation is one of the main references in terms of CFD theoretical aspect [5].
From these results, we could observe a large difference between the theoretical aspect and the simulation result.
However, in order to gain a more detailed result, the aid of these simulation software is required.

Numerical Simulation of a Low Reynolds Number Airfoil Yufu Wang1,a, Guoquan Tao1,b, Zehai Wang1,c and Zhe Wu1,d 1 School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China a 373216370@qq.com, b justin-psp@163.com, cwzh881230@163.com, d wuzhe@buaa.edu.cn Keywords: Low Reynolds number, Airfoil, Aerodynamic characteristics, Numerical simulation.
In this paper, the complex flow around a low Reynolds number was simulated by CFD.
Numerical Simulation Method Governing equation.
Table 1 Lift and drag coefficient at different angles of attack Angle of attack[°] Lift coefficient Drag coefficient 0 0.8290 0.0202 2 1.0387 0.0222 4 1.2347 0.0253 6 1.4102 0.0298 8 1.5554 0.0365 10 1.6548 0.0466 12 1.6784 0.0620 14 1.5806 0.0852 16 1.3261 0.1230 Fig. 3 Relationship between lift coefficient and drag coefficient and angle of attack Summary Aerodynamic characteristics of a low Reynolds number airfoil (S1223) are studied through numerical simulation, which has guiding significance for selecting high altitude propeller airfoil.

Simulation analysis of viscous effects on dynamic performance of hypersonic vehicle Li-qian DOU, Yu-ye SHEN, Bin SUN （ School of Electrical Engineering & Automation, The Tianjin Key Laboratory of Process Measurement and Control, Tianjin University, Tianjin 300072, China） Keywords: Viscous effects; Hypersonic vehicle; Reference temperature; Elastic mode Abstract.
Those researches are based on CFD numerical technique, it is difficult to obtain the enough simulation experimental data for good optimization and control design due to a great amount of CFD calculation requirement.
Figure 3 is simulation results under level steady flight conditions at 100kft.
Six degree-of-freedom simulation of hypersonic vehicles.

† Corresponding author, Tel: +82-31-610-4246, Fax: +82-31-610-4148 Experiment Design of micro mixing channel and detection cell Fig. 1 Simulation result of straight mixing channel and curved mixing channel with island structure Simulations were done using CFD-ACE TM (CFD research Corporation, Huntsville, AL) package.