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Online since: November 2014
Authors: Yin Sai Guo, Yi Zhang, Ming Ke Cheng
Compared with the experimental study, CFD computing time is shorter, fund is less used.
Development of a common research model for applied CFD validation studies.
Transonic CFD applications to engine/airframe integration.
Fluid simulation calculating examples and engineering application[M].
Efficient treatment of complex geometries for large eddy simulations of turbulent flows[J].
Online since: March 2011
Authors: Lei Zhang, Wen Tao Zhang
The HA particle velocity in the cold spraying process is investigated numerically using a computational fluid dynamics (CFD) program, FLUENT.
As the first stage of the work revealing the formation of the HA coatings by cold spraying process, this paper focuses on the identification of the HA particle acceleration behavior through numerical simulation by a computational fluid dynamics (CFD) program FLUENT.
Numerical Simulation and Discussion Taguchi Design of Simulation Conditions.
Dt×De, is also considered in the simulation.
Analysis of Variance for the Simulation Results.
Online since: December 2012
Authors: Mohamed Mazlan, Rahim Atan, Muhammad Iqbal Ahmad, Mohd Huzaifah Yusoff, Fathinul Najib Ahmad Saad, Mohd Mustafa Al Bakri Abdullah
The simulation of thermal pad in semiconductor is using FLUENTTM software.
The results from simulation is been compared to the results from experiment.
As far as the authors are aware, computational fluid dynamic (CFD) had been introduced in this area in 1985 and widely used as a thermal prediction tool thereafter.
Utilization of CFD as thermal prediction tool was employed by Plotnik and Anderson (1995) and Tucker and Paul (1998) as part of design for heat transfer enhancement in electronic devices.
Three-dimensional analyses of heat and fluid flow over a single 84 pins-PLCC package mounted on a printed circuit board (PCB), treated as a conjugate heat transfer problem were reported from Quadir et al. (2000) and Jayakumar et al. (2004) who used Fluent, the CFD software, for the simulations.
Online since: July 2013
Authors: Sheng Long Wang, Wen Hao Li, Yin Hai Ge
The subcooled boiling phase transformation of ammonia in a horizontal pipe tube was simulated through the application of the CFD fluid computational platform, the fluid state parameters in the tube were given at the same time.
Model For the simulation phase change boiling, the key is establishing the correct model.
Set the solution conditions Using CFD computational fluid dynamics software to achieve the numerical simulation of liquid ammonia in a horizontal circular tube which occur phase transition.
A length of 24m, a radius of 10mm circular tube, simulation of liquid ammonia in the mobile phase transition.
The simulation results and analysis The variation of the tube velocity.
Online since: February 2011
Authors: Wen Hua Jia, Chen Bo Yin, Guo Jin Jiang
CFD is used to examine the flow features of the throttle notches of valves.
A wide variety of notch types have appeared in hydraulic valves in industrial applications, of which four types as shown in Fig.2 are chosen for the simulation and analysis of features.
CFD Analysis and Results.
[4] Xia G H, Zhao Y, Yao J H (2009) Parallel unstructured multigrid simulation of 3D unsteady flows and fluid-structure interaction in mechanical heart valve using immersed membrane method.
[6] C Srikanth, C Bhasker (2009) Flow analysis in valve with moving grids through CFD techniques.
Online since: December 2014
Authors: Shun Kang, Wei Zuo, Xiao Ming Chen
The CFD calculation results, the experimental results and the Bladed results can be used to confirm the reliability of the model.
This paper calculates the CFD calculation, while experimental tests of pneumatic power and thrust were compared, including ‘CFD’, according to the results of the numerical calculation.
The CFD in the 8.5m/s, 11m/s and the rated wind speed of 14m/s involves three conditions of the results.
Firstly, the visible, for pneumatic power, at low wind Super 8.5m/s, secondly the CFD calculated values, which are slightly lower than the experimental values, and finally the other two conditions need to be in agreement with the calculated values for CFD.
Conclusions In this paper, the establishment of FlowVision numerical simulation on aerodynamic performance of wind turbine yaw effect based on the unsteady CFD, can be summarized as follows: 1) leaf segments and the application of the sliding grid method were used to calculate CFD in order to greatly reduce the number of grids and save computing resources; 2) in the axis, direction flow conditions, the numerical method can simulate the aerodynamic characteristics; 3) in the 11m/s wind shear conditions, this reduction canmore accurately reflect pneumatic power, while with regard to the variations in wind shear conditions of pneumatic power, thrust and torque performance parameters appear periodically; 4) the wake is constantly expanding, the expansion degree of different cross sections are different.
Online since: March 2013
Authors: Tong Liu, Shu Bin Yi, Xue Cai Wang
Stress of pressurizer surge line due to stratification is calculated with the help of finite analysis software, using both simplified temperature distribution and the temperature fields of CFD simulation result.
Thus, fluid field can be calculated independently and the CFD results are taken as the source of FEA of pipe solid.
To be accurate, the temperature field is computed by CFD method.
Although the temperature calculated by CFD method is more consistent with the reality, the computation takes too much time on stake.
Results from CFD temperature field.
Online since: September 2012
Authors: Wan Shan Wang, Tian Biao Yu, Xue Zhi Wang, Ya Hong Song
The oil film temperature distribution in different input state is obtained through CFD analysis by FLUENT.
In this paper, the FLUENT software is applied to Simulation analysis.
CFD analysis of the bearing thermal characteristics Building the film model and dividing the grid.
In order to accurately analyze the impact of the oil temperature for the oil film temperature field, simulation analysis is used to solve the temperature field distribution of oil film at different temperatures.
Conclusions Through simulation analysis for bearing input parameters, the following laws could be obtained.
Online since: August 2010
Authors: Shi Wei Zhang, Zhi Jun Zhang, Jin Ce Liu, Guang Zhe Song
The Fluent is a powerful commercial CFD software [2, 3].
When the pressure and density of gas is too low, the gas itself does not satisfy the continuity hypothesis, thus it thoroughly subverts the foundation of the CFD simulation.
Therefore we can use the Fluent software to do simulation.
If they are nearly same, it means that the simulation result is correct, and thus indirectly proves that the Fluent simulation is feasible.
In the CFD simulation, this property of the pump inlet should correspond to the constant velocity boundary condition or the constant volume flow rate boundary condition.
Online since: December 2012
Authors: Wei Min Yang, Shu Jiang Li, Wen Juan Bai
Postal code: 266061  ayangwm@mail.bust.edu.cn, b bwj2010best@126.com, clishujiang2000@126.com Keywords: blade,rotating basin,numerical simulation,airflow velocity,software.
Traditional fluid mechanical design method is to use the experimental data and experience equation to test,and the test data is not accurate to show the movement of the blade rotating basin due to the change of the structure.With the rapid development of fluid dynamics, and the method of numerical simulation is widely used to analyze the change situation of the basin, and it also can optimize the fluid machinery.
Scenery tower power generation device of the fan blade model is established with the UG software, using ICEM CFD to mesh division and the FLUENT is used to doing numerical simulation.
Grid division Due to the fan blade in rotating area,building grid model as shown in Fig.2 to make the simulation results are accurate.Using irregular grid division of the tetrahedron in the ICEM CFD,because its structure is complex.By setting up the corresponding parameter to improve grid density and setting 3 boundary layers in the after margin of blade, to better simulate the effect of blade rotation basin.Grid division model is shown in Fig.3 .
Computational fluid dynamics analysis—CFD software principle and application[M].Beijing: Tsinghua university press, 2004.
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