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This work uses CFD tool in ANSYS CFX software to calculate the aerodynamics parameters generated by main rotor using in UAV.
This work uses ANSYS CFX, a CFD tool to calculate the aerodynamics parameters generated by main rotor using in UAV using the ideal of simulation that were remarked in [3-5].
It can only be calculated after the CFD simulation, since the actual boundary layer profile is needed for this.
In CFD, it is used in turbulence models that need the wall distance for modelling the influence of the Reynolds stress tensor.
Ilinca, “Assessment of turbulence model for flow simulation around a wind turbine airfoil,” Modeling and Simulation in Engineering, February 2011

The electrolyte flow channel was used as numerical simulation physical model.
Numerical simulation of workpiece surface speed distribution was carried out with different cathode outlet slot structure by using Computational Fluid Dynamics (CFD).
Mesh quality directly affects numerical simulation results of the flow field.
Therefore, the numerical simulation was performed with different inlet pressures and fixed inter-electrode gap (∆ = 0.5mm).
Wang: Computational fluid dynamics analysis - CFD Software Theory and Application (Tsinghua University Press, Beijing 2004)

Computational Fluid Dynamics (CFD)-based Models Under this category, some models directly use viscosity laws in simulation and some others are based on an equivalent dynamic viscosity definition from CSM models, also called solid mechanics based dynamic viscosity [2, 16, 19, 30-51].
Multiphysics (CSM-CFD) Models There are models which use both CFD and CSM approaches to predict strains and residual stresses, along with flow characteristics: First they use a CFD approach based on the equivalent dynamic viscosity definition from CSM to predict temperature distribution and the shear stress near tool-material interface.
Xu, Solid mechanics simulation of friction stir welding process, Trans.
Micari, Meshless simulation of friction stir welding.
Wagoner, Numerical simulation of friction stir butt welding process for AA5083-H18 sheets.

Numerical Simulation Study on Airflow Structural Characteristics in Real Human Airways Model SUN Dong1,a, LI Fu-Sheng1,b, XU Xin-Xi1,c, LIU Ya-Jun1, TAN Shu-Lin1 1Institute of Medical Equipment, Academy of Military Medicine Sciences; National Biological Protection Engineering Center, Tianjin 300161 China axizhilang-dongdong@163.com, bfsisok@163.com, cxuxx1@sohu.com c.
Corresponding author,Tel:022-84656705; E-mail:xuxx1@sohu.com Keywords: human airways; transient airflow movement; airflow patterns; numerical simulation Abstract.
In this paper, the SST simulation was used to simulate precise flow field in human upper respiratory tract in the conditions of the low intensive respiratory patterns.
Because of this, it can be coupled with CFD code.
The former is coupled with SST turbulence model which is used to open the turbulent kinetic energy in the downstream of turning point in order to trigger the local transition; the latter is used to catch the influence of offsite turbulence intensity and also connect the empirical correlation with the transition starting standards intermittent factor transport equations. 1.3 Numerical simulation In the computing of the flow field, its boundary conditions we set are: we conduct simulation researches on transient airflow movement in model of mouth-throat under the low intensity circular breathing mode.

Germain and Baier. [19] Performed numerical simulations on turbine blade channels to identify the flow structure and quantity the secondary flows that are essential for the investigation of losses in a turbine blade channel.
Alameldin et al. [20], performed a CFD Analysis to study the increase in total losses of a transonic turbine blade subjected to film cooling.
The transport equation is additional term utilize to simulates a non-reacting gas mixture when this gases jet in to a cross-flow at different density; the simulations were processed using the CFX software from ANSYS, Inc.
The numerical simulation of the coolant flow through hole system is carried out using the CFD package Ansys CFX coupled with the optimization technique to maximize the film cooling effectiveness.
[16] Lakehal, D., Near-Wall Modeling of Turbulent Convective Heat Transport in Film Cooling of Turbine Blades with the Aid of Direct Numerical Simulation Data.

By using CFD technology, the velocity distribution of flow at the blade position was analyzed and the different effects caused by blade numbers to the particle removal efficiency were discussed.
Fig.1 Computational grid and boundary conditions An Eulerian- Eulerian two-phase flow model of the first-stage grit chamber with rotational flow is applied to conduct the numerical simulation, then the simulation results of the water and particles could be presented
The aforementioned simulation demonstrated that the optimal solution of blade number is 4 and the grit chamber runs best.
The velocity distribution of flow at the blade position and the effects caused by different blade numbers (2, 3, 4, and 6) to the removal efficiency were discussed by using CFD technology.
Li: Hyperconcentrated Solid-Liquid Two-Phase Flow Simulation on Vortex Grit Chamber in Sandstone Wastewater Treatment.

In this study a 3D computational fluid dynamics (CFD) analysis was carried out to determine the minimum inlet propellant temperature with change in mass flow rate of the propellant so as to maintain single phase flow in the micronozzle.
Validation of the CFD Code The validation of steam flow in micronozzle is done by comparing the experimental results in literature [6] and solving the model using CFD code.
Comparison of the values shows good agreement of the thrust value obtained by numerical simulations and experiments.
Conclusions In this research the performance analysis of a micronozzle steam flow is done by numerical simulation.
Kana, et al., Simulation and experiment research on vapourizing liquid micro-thruster, Sensors and Actuators A 157 (2010) 140–149

Research on performance of stern shaft mechanical seal based on FLUENT Peng LIU1, a,Zheng-lin LIU1,b,Sheng-dong Zhang1,c,Bo Qin1,d,Liang Zhao1,e 1School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China a 409682311@qq.com,b zlliu812@163.com ,cshengdong.taiji@163.com, dqb1987616@126.com ,e458378810@qq.com Keywords: mechanical seal; temperature field; pressure field; CFD Abstract.Reasonable assumptions and boundary conditions, the application of CFD method of mechanical seal ring structure analysis and thermal - structural coupling analysis，research on the temperature field and the pressure field distribution of the water film between moving and the stationary ring .
In recent years, the development of computational fluid dynamics CFD brings power to seal research.
Khonsari.Numerical Simulations of the Flow Field Aroud the Rings of Mechanical Seals [J].Journal of Tribology;2006,128(7),559-565

CFD Analysis of Scramjet Combustor with Non-Premixed Turbulence Model Using Ramp Injector K.M.
Schumacher [10] studied the Numerical Simulation of Cantilevered Ramp Injector Flow Fields for Hyper velocity Fuel-Air Mixing Enhancement.
Schumacher, Numerical Simulation of Cantilevered Ramp Injector Flow Fields for Hypervclocity Fuel-Air Mixing Enhancement, Ph.D.
Sivasakthivel, CFD Analysis of Mixing and Combustion of a Hydrogen Fueled Scramjet Combustor with a Strut Injector by Using Fluent Software, IACSIT International Journal of Engineering and Technology, Vol. 3, No. 5, (October 2011)
Singh, CFD Analysis of Supersonic Combustion Using Diamond Shaped Strut Injector With standard K-Є Non-Premixed Turbulence Model, International Journal of Advanced Trends in Computer Science and Engineering, Volume 1 No.-1, PP. 33-42, (March- April 2012).

In this paper, the three-dimensional CFD method is used in numerical simulation of the highly intensified diesel engine intake process.
In the present study, the three-dimensional CFD method is used in numerical simulation of the highly intensified diesel engine intake process.
Double helical Helical and tangential Double tangential Fig.1 Three different combinations of intake port The present simulations focus on the transient process of air inlet, the motion of the valve and piston in the actual work process of diesel engine is used as the input condition.
The simulation begins at the TDC of intake process (360°CA), end up at the end of the intake process (580°CA).
[2]HU Yun-ping, LI Qiu-xia, 3D Transient Numerical Simulation of Flow Field in Cylinder of Diesel Engine with Double-intake Port.