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Study on the Airflow Level Posture Sensor Based on Fluid-Solid coupling Ming-Ming Ji1, a, Lin-Hua Piao2, b, Bai-Hua Li3,c 1Beijing Information Science and Technology University, Beijing China 2Beijing Information Science and Technology University, Beijing China 3Beijing Information Science and Technology University, Beijing China ajmm3862411@126.com, bbjplh@bistu.edu.cn, clibaihua0226@yahoo.cn Key words: three-dimensional; airflow level posture sensor; ansys-flotran cfd; Fluid-Solid coupling Abstract.
Using ANSYS program, the finite element simulation based on Fluid-Solid coupling is conducted by a series of procedures, such as three-dimensional model building of airflow level posture sensor according to the actual size of the proportion, network modifying, loads applying and equation solving.
The numerical results show that: 1) The velocity difference of air flow at two heat source changes with the tilt angle, the difference between airflow velocity increases with the increase of the tilt angle. 2)Compared with two-dimensional modeling, the simulation result of three-dimensional modeling and fluid-solid analysis methods are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.
Analysis method Using FLOTRAN CFD module of ANSYS software and the application of fluid-structure interaction analyzed fluid transmission between heat and air.
Conclusions The finite element method based on fluid-structure interaction, three-dimensional model of sensitive components of air flow posture sensor is built, using ANSYS-FLOTRAN CFD software to calculate the flow velocity inside airflow posture sensor in the horizontal and inclined state distribution.

The CFD computational result and the analysis show that the airfoil of the seagull is suitable for the special work circumstances of the small wind turbine, and it can be used for the further design of the blades.
Analyzing the specific performance under the Low-Reynolds number by using the CFD software in order to simulate its aerodynamic performance which is installed upon the small wind turbine.
Figure.10 shows simulation of combined wind wave model.
Matlab code for wind turbine simulation model Figure 12 Simulation curve of wind turbine simulation system The data can be found through the above result.
Conclusion In this paper, using the results of bionic experimental airfoil through references, carrying out numerical simulation by CFD and analyzing the effect of the parameters of the seagull airfoil by software profili.

The dynamic characteristics of a hydrostatic and hydrodynamic journal bearing with two arrays of eight holes have been investigated theoretically by the three-dimensional Computational Fluid Dynamics (CFD) models with respect to equilibrium position.
This paper presents an analytical study of the dynamic stiffness and damping of hybrid journal bearings with two arrays of eight holes using a three dimension CFD model which associated with displacement disturbance and velocity disturbance through a UDF (User Definition Function) program.
CFD model of the bearings A 3-D simulation model is developed using the CFD package FLUENT 6.3.
The dimensions of the journal bearing with two arrays of eight holes used in this simulation are: diameter 30mm, bearing clearance 20μm, length to diameter ratios 0.4, orifice diameter 0.6, eccentricity 0.1, as shown in Fig.1.
Conclusions The dynamic characteristics of hybrid (hydrostatic/hydrodynamic) journal bearing with two arrays of eight holes are analyzed theoretically by the CFD approach under the action of displacements disturbance and velocity disturbance.

The simplified 2D geometry of reaction chamber(with a certain tilt angle θ=6°and 3 inch SiC substrate located in the middle of oblique base) is shown in Fig.1.A detailed analysis the chamber pressure, substrate temperature and inlet flow is made through the use of CFD and Chemical Reactions softwares, coupling fluid flow, chemical reactions and mass transfer process in the simulation of deposition course of SiC thin film.
We have done a series of simulations when chamber pressure is 5 KPa,10 KPa,15 KPa,20 KPa .
From the deposition rate curve can be seen in Figure 2, simulation results are consistent with the experimental conditions.
Similar simulation model are created when temperature in 1783K,1823K,1873K.
Conclusions This paper presents the analysis the influence of chamber pressure,the substrate temperature in the deopositon rate of SiC thin film by using the simulation software .The simulation result is shown in the Fig.2,Fig.3 and Fig.4.

Numerical simulations of spherical vertical-axis wind rotor Yongyu Huang1, a, Qiuyun Mo1, b, Xu Zhang1, Zupeng Zhou1 1School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin, Guangxi, China ahuangyy1022@mails.guet.edu.cn, bmoqyun@guet.edu.cn Keywords: Vertical axis wind rotor, Numerical simulation, Coefficient of wind power, Fluent.
This study will consider the output power coefficient Cp as target, and the numerical simulations for three different rotors having three blades as models of vertical axis wind turbines are conducted with CFD software.
Numerical simulation procedure Create model of blades.
Simulation results and analysis Different power coefficients have been applied to observe the rotational speed of the rotor.
Conclusions Three models of 2D and 3D are analyzed with CFD software by numerical simulation.

By applying the FLUENT software of CFD, a three-dimensional model about the V-cone flow meter is built.
The effect of technical parameters on flow in the V-cone flow meter field has been studied by using computational fluid dynamics (CFD).
The simulation outflow coefficient is relevant to the parameter of the effective diameter ratio β, the diameter of pipe D, front-cone angleα and back-cone angleθ.
By calculating the Reynolds number of the smallest entrance velocity, it can be figured out that the flow field of the numerical simulation is turbulence.
Conclusions The simulation outflow coefficient formula is relevant to the parameter of the effective diameter ratio β, the diameter of pipe D, the front cone angleα and the back cone angleθ.

A method was developed with coupling simulation by both software of DeST-h and computational fluid dynamics (CFD) in typical meteorological year (TMY) in Guangzhou.
There is not appropriate simulation tool to predict energy use of natural ventilated building, too.
In order to save the computer simulation time, a simulation method was pointed out, shown in the figure 2.
There were two kinds of wind environment simulation schemes due to the different occupant Figure 2 Simulation flowsheet behavior in the residential building.
Simulation of building cooling load.

Numerical Simulation of the Influence of Outer Chamber Height on Flow Field in Circumfluent Cyclone Separator Jihai Duan 1,a, Xingxing Guan 2,b College of Chemical Engineering, Qingdao University of Science and Technology, No.53 Zhengzhou Rode, Qingdao, China, 266042 aduanjihai@yahoo.com, bgxx708@163.com Keywords: circumfluent cyclone; outer chamber; numerical simulation; pressure drop Abstract.
In this study, the gas flow filed in CFCs of different outer chamber heights were simulated by CFD software (FLUENT 6.2).The calculations could improve our knowledge about the effect of outer chamber structure in CFCs and provide some fundamentals for further research of CFC performance.
Fig.1 CFC configuration and grids Results and discussion Fig.2 presented the comparison of CFD simulation and experiment data of separation efficiency for CFC.
The numerical simulation results of CFC are in good agreement with the experimental data at different particle sizes.
As can be seen from this figure, although the simulation values are different, the tangential velocity profiles are nearly identical in the three CFCs.

Thus, in this paper, to investigate the effects of the VGs’ installation angle on airfoils, numerical simulations are conducted by CFD on the finite wing of NACA0012.
According to the finite airfoil with or without VGs, three-dimensional models are established and numerical simulations are carried out in detail.
Parameters value 4 20 40 10 1 0~90 Simulation Method Calculating Model.
Conclusions In this paper, the three-dimensional model with and without VGs are investigated by CFD to analyze the effects of the VGs’ installation angle on a finite wing of NACA 0012.
These simulation results above are of great importance for active control of the wind turbines or wing of the planes.

Resource requirements: Apart from the usual resources such as lecture notes, bibliographies, journal articles, various data sources (e.g., ESDU data), materials from Federal Aviation Regulations (FAR) and Civil Aviation Safety Authority (CASA) and so forth, the advanced design project also requires CAD/CAM, CFD and Wind Tunnel and Flight Simulation facilities.
Fig.1: CATIA generated view of SS-07 There was, however, difficulty in obtaining reliable CFD and wind tunnel data at the very low speed of MASD speed.
During the CFD analysis, the k-epsilon standard, RNG and Realizable turbulence models were used to determine the lift and drag coefficients between 0-8 degrees angle of attack.
This was determined from the flight simulation as being due to gyroscopic forces generated by the fan.
Conclusion It has been demonstrated that the advanced project study concept can be successfully applied in aerospace engineering design through a combination of theoretical calculations, numerical (CFD) and physical experimentation (Wind Tunnel) and flight simulation (X-Plane) studies.