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Based on CFD technology, this paper will give a numerical prediction method of energy saving effect for compensating ducts.
Conclusions In this paper, the numerical prediction of energy saving effect of compensating ducts adopted the viscous CFD technology.
The result of viscous CFD prediction shows that the propeller thrust has increased by 4.62%.
CFD simulation of propeller and rudder performance when using additional thrust fins.
Study of mesh partition methods for numerical simulation of flow field of full form ships.

Study on the Smoke Flow Regulation in Underground Space Based on the CFD Simulation Yu Wang Dept. of Safety Engineering, Technology Institute of Sichuan Normal University, Chengdu, China cawn229@sohu.com Keywords: Underground space; smoke movement regulation; FDS field simulation Abstract.
Based on the analysis of the characteristics and reasons of the fire in the underground buildings, and with a (or a half) basement of the library in a university as its study object, the FDS of the CFD software is used to carry on a field simulation by setting two fire scenarios and five measuring points.
What is more, the state parameters of each location in the fire simulation process can be got with the help of numerical modeling study [9, 10].
The study method of this paper is FDS (fire dynamics simulation), a tool for fire dynamics simulation developed by the Tekes of the United States, and a model of Computational Fluid Dynamics (CFD) to simulate the fluid flow of the fire drive.
Moreover, in the concise analysis of the evacuation of the basement, only the best safety evacuation time has been found through the simulation.

Simulation Analysis on Wastewater Anaerobic Tank Stench in Collecting Hood with Properties of Environmental Materials Zhao Du1,4,a, Ning Du2,b, Yujie Chen3,c 1School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang Hebei 050018, People’s Republic of China 2Shijiazhuang Light Industry Technical School, Shijiazhuang Hebei 050051, People’s Republic of China 3Shijiazhuang Mechanic Technical School, Shijiazhuang Hebei 050061, People’s Republic of China 4Pollution Prevention and Control Key Laboratory of Biotechnology in Hebei Province, Shijiazhuang Hebei 050018, People’s Republic of China aduzhao12@163.com, b1311156002@qq.com, ccyj850620@163.com Keywords: Anaerobic Tank，Stench-collecting Hood，CFD Abstract.
Computational fluid dynamics(CFD) is an effective approach to study with standard κ—ε turbulent model.
CFD predominate results show that: the exhaust flow, tuyere pressure, velocity and pollutant concentration had a greater influence on the flow field distribution.
Using fluent software module to the model of flow field simulation, the standard kappa epsilon - predominate turbulence model is a simulation indoor 3 d gas turbulence model is good.
Simulation results At z = 0.5 m above the liquid level of the static pressure contours (Fig.3) and velocity contours (Fig.4), the concentration of cloud image (Fig.5), Air – Pressure relation Curve (Fig.6).

And the availability of numerical simulation model was verified by comparing the empirical curve and numerical simulation results.
Simulation CFD implementation.
SIMPLEC algorithms were obtained in this simulation.
Comparing the simulation results and the results obtained with the empirical equation, whether the equation model used in CFD was correctly selected and the boundary conditions were accurately set can be verified.
The simulation condition can be set in the same way.

Commercial CFD software ANSYS FLUENT is used to simulate the heat dissipation process during battery discharge using PCM and traditional forced air cooling methods.
CFD simulation model under PCM conditions In order to get a sound view of the heat dissipation process under PCM cooling condition, CFD simulation is performed using commercial software ANSYS FLUENT.
Simulation comparison In order to make a comparison between the cooling effect of PCM and forced air conditions, CFD simulation is performed with the aide of ANSYS FLUENT.
A simulation model of a 12-cells (18650) battery pack is established.
A virtual air passage with its size of 100mm*120mm*100mm is added in the simulation process to form a uniform wind field.

Two detailed time-dependent axisymmetric computational fluid dynamic (CFD) models of the OPTR to predict its performance was considered.
The governing equations and the boundary conditions (in accordance with table 2) were solved using CFD-ACE.
Porous media parameters used in the simulation.
It can be seen in CFD-ACE numerical simulations the cooling level higher than in Fluent models.
[11] ESI-CFD-Inc., CFD-ACE V2009.4 User Manual, ESI Group, Huntsville, AL, 2009.

The result of the CFD simulation shows that the local Knudsen number in the engine boundary layer is greater than the critical value with the operating conditions 40Km/Ma8 and 30Km/Ma8; they are non-equilibrium flow and the Navier-Stokes equations fails.
CFD Simulation The Australian Hyshot scramjet engine [3] is used as the model engine here.
Star-CD 4.08 is chosen as the CFD simulation tool.
In contrast, for low altitude and low speed flight such as 20Km/Ma8 case, the boundary layer satisfies the local equilibrium assumption, the regular CFD simulation is valid.
Wilcox: Turbulence Modeling for CFD, Second Edition, DCW Industries.(1998)

To establish a CFD model of far infrared tunnel, get numerical simulation dates of far infrared tunnel by using Fluent soft, compared with experimental dates.
CFD simulation Physical model and meshing.
Figure 2 Gird of 2D modle Compare simulation results with experimental data.
Conclusions By using Fluent software at the numerical simulation of far-infrared tunnel, get the simulation dates, and then compared with the experimental datas.
Multi-belt dryer CFD simulation and wind field test [J], Drying technology and equipment, 2007, 5 (1) :15-21

In this study, idealized model with 50% of porosity was used in the simulation and 1mm displacement was applied on top of the model.
The FSI boundary condition approach was used combination of CSM and CFD.
Table 1 shows the contour plot of velocity and pressure distribution for both CFD and FSI simulation.
On the other physic (CFD), the maximum of the shear rate is 1.67 s-1.
[6] Syahrom, A., et al., Mechanical and microarchitectural analyses of cancellous bone through experiment and computer simulation.

Design and optimization of high-viscosity and high-density drilling fluid separation system Xu renbo1, a, Liu xiaoguang2,b and Tu fuquan1,c 1 College of Mechanical and Automatic, Wuhan University of Science and Technology, Hubei, China 2 Department of Mechanical and Electrical Engineering, ChiZhou College, Anhui, China a xurenbo@gmail.com, bliuxg003@gmail.com, ctufuquan@gmail.com Keywords: separation system; orthogonal method; CFD simulation; flow field Abstract.
Using orthogonal experiment method, we simulated flow field in this system by CFD software and analyzed the effect of operate variable and structural variable on system degassion efficiency.
In order to simplify the CFD simulation process of flow field in two-stage vertical separation system. the portion factor design was employed according with orthogonal experiment.
As CFD simulation results shown in Figure 2, this program can solve the problems that exist in first stage gravity separator , such as air bubbles become smaller and drilling fluid froth due to the larger impact.
According to numerical simulation results, the ideal model was set up, as shown in Figure 3.