Search results

For further analysis this mesh can either be used for Computational Fluid Dynamics (CFD) simulations using the code Eilmer [8] or converted to the foam format using e3prepToFoam [9] for simulation with OpenFOAM or other solvers.
Being directly coupled to mesh generation this tool is also an excellent basis for large scale optimization, as it allows parameterized geometries to be meshed automatically, ready for high fidelity CFD simulations.

Numerical Analysis of Concave-slab Type Water Lubricated Rubber Alloy Bearings’ Lubrication Jiaxu Wanga, Yanfeng Hanb, Guangwu Zhouc, Xiao Ked, Yi Qine and Song Wuf The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, China ajxwang@cqu.edu.cn bfyh-0220@163.com czhouguangwu2004@163.com dxiaoke963@yahoo.com.cn eqinyi@cqu.edu.cn f16627326@qq.com Keywords: curve fitting, Concave-slab type water lubricated rubber alloy bearing, fluid-structure interactions, numerical simulation.
By using ADINA’s fluid-structure interactions solver, 2-D numerical simulation for the lubrication performance of Concave-slab type water lubricated rubber alloy bearing was carried out under low rotating speed conditions.
Then the pressure distribution, line load of the water lubricating film and the elastic deformation of slat-rubber lining were all obtained through the simulation.
The CFD results indicate that the maximum pressure zone in the bearing is close to the minimum clearance.

For numerical simulation of the engines the above said models were used.
Because of these assumptions the single zone model is well suited for the simulation of a HCCI engine.
The physical properties which are used in this simulation model are listed in Table 1.
[14] Kong SC, Marriott CD, Reitz RD, Modeling and experiments of HCCI engine combustion using detailed chemical kinetics with multidimensional CFD, SAE 1026 (2001) 1007-1044
[23] Noel L, Maroteaux F, Ahmed A, Numerical Study of HCCI Combustion in Diesel Engines Using Reduced Chemical Kinetics of n-Heptane With Multidimensional CFD Code, SAE 01 (2004) 1909.

The numerical simulation analysis.
Simulation results and analysis.
Numerical simulation analysis.
CFD simulation and assessment of life safety in a subway train fire[J].
Computer simulation study on personnel evacuating in metro station [J][J].

Discusses how to making up air to balance indoor air, eliminate the traditional system defects, through in the hearth additional secondary air tuyere through using the CFD----fluent6.2 simulation software simulates the airflow organization of the kitchen exhaust system if making up air.
I choose different simulation model of secondary air tuyere area to simulate, respectively s = 0.05 m2, 0.06 m2, 0.10 m2, 0.14 m2.
Numerical simulation Simulation assumptions.
Numerical simulation.
Using The finite element method numerical simulation and SIMPLE algorithm for solving the discrete equations.

Wind Energy Utilization of High-Rise Buildings Roof Numerical Analysis Yanhong Chen1,a, Xingqian Peng1,b, Rong Yang1,c 1College of Civil Engineering, Huaqiao University, Quanzhou, 362021, China ayanhongchen20@126.com, bpxq@hqu.edu.cn, c635701295@qq.com Keywords: high-rise building; wind energy; tower; wind speed ratio; numerical simulation Abstract: In order to improve the utilization of wind energy, set the tower on the roof, the roof tower on the use of CFD technology in different dimensions and different wind direction of the wind environment under the numerical analysis, simulate the velocity field around tower building, and comparative analysis, find out the reasonable fan placed to achieve the purpose to make full use of wind energy.
Fig.1 Schematic geometric model size Fig. 2 Wind direction signal Computational Model With IECM CFD 10.0 model to ANSYS CFX 10.0 software computing platforms.
Low door frame plant in the computational domain numerical simulation of wind tunnel setup [J].

Many researchers have been involved with the CFD approach of oil flows inside pipes as Dunia [2] where interesting pressure and temperature profiles are extracted or as in other works [3-5] where they present mathematical models (as MPTT) in order to predict the crude oil rheological behavior.
Conclusions In the present paper the numerical study, simulation and estimation of crude oil flow inside T-junction channels took place.
[10] Araujo M., Neto S., Lima A., Luna F., Hydrodynamic study of oil leakage in pipeline vis CFD, Advances in Mechanical Engineering , ID 170178
[15] Benes L., Louda P., Kozel K., Keslerova R., Stigler J., Numerical simulations of flow through channels with T-junction, Applied Math. and Computation, 219 (2013) 7225-7235
[19] Phan H., Wen L., Zhang H., Numerical simulation and analysis of gas liquid flow in a T-junction micro channel, Advances in Mechanical Engineering, (2012), ID 231675

Simulation of Cavitation Erosion in Different Throttling Pipelines Bin Zhu1, Yong Su2,a and Zhigang Li 3  1Modern Education Technology Center, Shenyang ligong University, Shenyang，Liaoning, 110159, China 2School of Mechanical Engineering, Shenyang University of Chemical Technology, Shenyang, Liaoning, 110142, China 3Polytechnic school of Shenyang ligong university, Shenyang，Liaoning, 113122, China a yongsusyict@gmail.com (Corresponding author) Key words: throttling pipelines; cavitation erosion; simulation Abstract.
Luo et al. [1] calculated the typical characteristics of the cavitation erosion on the surface of the hydraulic turbine blades by means of computational fluid dynamics (CFD).
Osman et al. [5] theoretically analyzed the damages of cavitation erosion by means of numerical simulation.
Numerical simulation on cavitation erosion and experimental methods The design of throttling channels and experimental models and parameter conditions The structure of the throttling pipelines has big influence on the throttling effect.
Fig. 2 The diagram of the calculation meshing for throttling pipeline Calculation results The simulation on the throttling pipelines is conducted, and through calculation, the relative velocity profile in the throttling pipeline, pressure profile, the relative velocity profile at the outlet, velocity isoline distribution map, and the pressure isoline distribution map are obtained.

Because combustion process of methanol is very complex, and the corresponding researches is most about the combustion phenomena by using CFD software[3]-[5], such as the changes of combustion temperature, combustion pressure, combustion flow and other combustion parameters.
The paper would firstly aim at the changes of intermediate products of combustion process about methanol and diesel micro-emulsion, and secondly analyze about the influence of methanol content on the combustion process, and finally validate the view of combustion mechanism form experiment of the power performances and emission characteristics. 2 Establish the combustion model Combustion mathematical model of diesel engine uses the basic control equations (the partial differential equations of momentum conservation, energy conservation and quality conservation).In addition, the study coupled with the simplified chemical kinetics model and CFD dimensional model to analyze the combustion and emission.
When the crankshaft was between 360 and 375ºCA, the simulated values was slightly larger than the experimental values, which was due to the fuel injection spray and so was ideal in the simulation, but the fuel injection atomization and film evaporation were complicated relationship processes in practice.
“Visualization Experiment and Numerical Simulation of Methanol and Gasoline Mixture Formation”.
“Simulation of catalytic reaction of methanol engine exhaust emissions”.

The Computational Fluid Dynamics (CFD) has been conducted to analyze hydrodynamic load formed during water exit.
Fig. 1 free surface, cavity profile, and pressure distribution / Pa Based on the CFD analysis, the water exit dynamic model has been established.
In order to analyze the effect of time space Δt, the structure dynamic simulation of the vehicle with different concentrated force locations xF1D -1 and xF2D -1 have been conducted.
The simulation result indicates that the time space between the two force has a significant influence on the internal force responce level.
[3] Luo Jing and Li Jian: Two-dimensional simulation of the collapse of vapor bubbles near a wall.