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Aircraft-carried aerosol Sampling Inlet by CFD simulation Baoqing Wang1,a, Yuhong Liu2,b, Shiquan Lan2,c, Shu Yao1,d, Shuai Yin1,e 1College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China 2College of Mechanical Engineering, Tianjin University, Tianjin 300072, China awangbaoqing@nankai.edu.cn, byuhong_liu@tju.edu.cn, cyxlx2010@163.com, dmadkon@qq.com, eyinshuai1989@mail.nankai.edu.cn Keywords: Isokinetic sampling Inlet, Aircraft-carried, CFD simulation Abstract.
This study was conducted using the CFD code to perform a turbulent simulation of the airflow on the aerosol sampling inlet.
It is suggested that CFD simulation can be useful for improving the optimum aircraft-carried aerosol sampling inlet.
Fig. 3 Computational domain and boundary conditions of the sampling inlet Results and discussions The results of the CFD simulations were complied and plotted graphically.
While more study is required to do some experiments in wind tunnel to compare with the results of CFD simulation and verify the efficiency of different diameter of particles.

Computational Fluid Dynamics (CFD) is widely applied for the simulation of fluid flows, and the performance of the simulation process is critical for the simulation efficiency.
The performance of the CFD simulation is critical for the practicability of the CFD software; so many researchers try to optimization the performance of CFD software.
In this paper, we try to analysis the performance of a typical CFD simulation process, and try to find out the bottleneck of the CFD simulation process.
Background CFD simulation: CFD simulation is to simulate the fluid flows with numerical methods, which can greatly speedup the research of fluid flows.
Solving the linear algebraic equations is the key part of CFD simulation, which can account for about 70% of the simulation time[3].

Method for Lumped Parameter simulation of Digital Displacement pumps/motors based on CFD Daniel B.
In this paper, the focus is therefore on development of a method for lumped parameter simulation using CFD to determine model parameters by which the CFD accuracy is implemented in the lumped parameter model.
The computationally expensive steady CFD simulations may then be conducted once for a given DD geometry, and subsequent transient simulations be conducted with low computational cost.
Figure 8 shows a comparison between the LPM and the transient CFD model simulation.
This lumped parameter model has shown to exhibit similar dynamic response as a computationally expensive transient CFD model, while a simulation may be performed in less than one minute compared to several days for the transient CFD.

CFD Simulation and Study of Air Pump Loss on Two Kinds of Retarders with Different Turbulent Structures Zhenchuan Song a *, Huiyuan Lib and Chao Wuc Science and Technology on Vehicle Transmission Laboratory , China North Vehicle Research Institute , Beijing , China asuifeng61@yeah.net , bLhyzp@aliyun.com , cwuchao927@sohu.com Keywords: Hydraulic Retarder , Air Pump Loss , CFD Abstract.Bench test and computational fluid dynamics (CFD ) simulation of the air pump loss on the 380 hydraulic retarder are completed in this paper .
It turns out that the CFD simulation has nice reliability from the contrast of the air pump loss between the test and the simulation .
And on this foundation , CFD simulation of two kinds of retarders with different turbulent structures is done .
Accompanied with other two approaches CFD can get better output investment ratio .
The effects on exterior characteristics of the different turbulent structures will be analyzed through the CFD numerical simulation . 2.3 The Mesh Models of the Retarders for Simulation The difference of the among the above models is the turbulent structure fixed on the stator .

Based on previous results, the development of further research on CFD in the simulation of air-conditioning in future was analyzed.
The application of CFD technology in the operating conditions of indoor air conditioners CFD simulation of different air conditioned installation location.
In CFD simulation of the impact of indoor air, a widely used model is thetwo-equation turbulence model.
CFD simulation study of different air supplies of air conditioning system.
CFD simulation study of different air-conditioned air supply angles.

CFD Simulations for Hydrodynamic Derivatives of High Speed Underwater Vehicle.
In case of rectilinear flow, spherical domain was created in such a manner that simulations were carried out for different inflow angles without any change in the grid layout.
In order to make ease of the simulation at different inflow angles, the entire computational domain is separated into two sub-domains namely stationary and rotating.
Rotary Coefficients.Steady state CFD simulations of rotating arm tests have been performed to calculate rotary derivatives of the underwater vehicle at different angular velocities.
In case of rectilinear flow, spherical domain was created in such a manner that simulations were carried out for different inflow angles without any change in the grid layout.

The Hinge Moment Optimization of Rudder base on CFD Numerical Simulation Nan Zhang1, a, Yue Zhang1,a 1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences abiteric@163.com Keywords: CFD; Fluent; simulation; Hinge moment; Optimization; Abstract.
The paper introduce structured grid division, use CFD numerical simulation and FLUNET software to conduct the simulation calculation for the hinge moment of rudder.
Currently, CFD numerical simulation technology for aircraft, which is gradually developing.
Using Fluent software for CFD numerical simulation, because optimized cross-sectional shape of the rudder control is more complex, it is used in this article Gambit meshing tools for pre-processing, foreign basin unstructured meshing, the advantage of adaptability to meet the complex shape of the flow field meshing, the disadvantage is the relatively poor accuracy, but still meet the computational requirements of this article.
Re-completion of the new rudder hinge moment for CFD numerical simulation, can be obtained with the previous state of the corresponding hinge moment value as shown in Fig 6 to 10.

Cortella et al. analyzed the velocity and temperature distributions in refrigerated open cabinets based on CFD simulation.
CFD simulation of heat and moisture transfer for predicting cooling rate and weight loss of cooked ham during air-blast chilling process[J].
Effect of fluctuation in inlet airflow temperature on CFD simulation of air-blast chilling process[J].Journal of Food Engineering.2001,48 (4):311-316
[24] Cortella G., Manzan M, Comini G..CFD simulation of refrigerated display cabinets.
Application of Computational Fluid Dynamics (CFD) Simulations to Spray-Freezing Operations[J].

Research of 3D-CFD Simulation on a Large Sized Pit Type Carburizing Furnace Weimin Zhanga , Ye Ma b and Linlin Lic School of Materials Science & Engineering, Shanghai Jiaotong University, Shanghai 200030, P.R.
China awmzhang@sjtu.edu.cn, b boymaye@hotmail.com, cpufan@sjtu.edu.cn Keywords: 3d-cfd simulation, carburizing furnace Abstract.
The commercial software Fluent was adopted to carry out 3 dimensional computational fluid dynamics (3D-CFD) simulations of the gas flow field under different, actually four kinds of , furnace designs in this article.
Simulations with different sized parts on the top and lower trays were investigated.
CFD simulations had been carried out on the carburizing gas flow fields under different furnace designs.

CFD flow model and its effects on the calculations of high pressure sprays Laiguo Liua, Xiaojun Zhangb，Songlin Nie College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China aliulaiguo@163.com, bxjzhang@bjut.edu.cn Keywords: CFD, High-pressure water jet, simulation, flow model Abstract.
Validation Of CFD Simulations The experimental data was used to validate the CFD results from modeling the ejectors used in their experiments under the same operating conditions.
Numerical Simulation of High Speed Turbulent Water Jets in Air.
The measurement and simulation of indoor air flow.
Renormalization Group Modeling and Turbulence Simulations.