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Online since: April 2016
Authors: Pey Shey Wu, Min Jho Young, Jun Yun Wu, Chia Chian Wang, Hao Yu Hu, Chih Fei Chang
The analytical verification is conducted with a commercial CFD software.
Makowski and Kim [4] described various aspects of applying CFD to the simulation of the external aerodynamics of ground vehicles.
Detailed steps of a simulation strategy using unstructured-mesh-based solver technology in Fluent software were discussed.
Details of transmission elements, which should be relocated in the new designs, are all enveloped within the chassis and are not considered in the CFD simulation.
Conclusions drawn from the CFD results are as follows.
Makowski and Kim [4] described various aspects of applying CFD to the simulation of the external aerodynamics of ground vehicles.
Detailed steps of a simulation strategy using unstructured-mesh-based solver technology in Fluent software were discussed.
Details of transmission elements, which should be relocated in the new designs, are all enveloped within the chassis and are not considered in the CFD simulation.
Conclusions drawn from the CFD results are as follows.
Online since: May 2012
Authors: Ming Hu Jiang, Zhen Wang, Jia Li You, Li Xin Zhao
Inner flow field, pressure field and gas phase concentration of the gas-liquid cylindrical cyclone (GLCC) was studied and simulated with a Fluent soft pack by means of Computational Fluid Dynamics (CFD).
A new method by CFD is used to study the phenomena inside cyclone separator [5].
Through changing two structural parameters, inlet position and the overflow tube diameter, parameters simulation analysis are carried out so as to study internal velocity rules and pressure variation.
The internal flow field simulation is carried out when changing inlet position (Figs. 3 and 4.
Simulation results show that with the increase of inlet height h, the pressure loss reduces.
A new method by CFD is used to study the phenomena inside cyclone separator [5].
Through changing two structural parameters, inlet position and the overflow tube diameter, parameters simulation analysis are carried out so as to study internal velocity rules and pressure variation.
The internal flow field simulation is carried out when changing inlet position (Figs. 3 and 4.
Simulation results show that with the increase of inlet height h, the pressure loss reduces.
Online since: May 2011
Authors: Yiin Kuen Fuh, Wei Chi Huang
This paper aims to numerically investigate and compare the effectiveness of CFD (Computational Fluid Dynamics) with experimental results.
This paper aims to numerically investigate and compare the effectiveness of CFD (Computational Fluid Dynamics) with experimental results.
In this study, we simultaneously compare the experiments and CFD simulations regrading two different fire loads of 1 and 5MW for 6 minutes and 20 minutes, respectively.
Generally speaking, simulations results are in a good agreement with experimental observations.
The following conclusions can be drawn form simulation results: 1.
This paper aims to numerically investigate and compare the effectiveness of CFD (Computational Fluid Dynamics) with experimental results.
In this study, we simultaneously compare the experiments and CFD simulations regrading two different fire loads of 1 and 5MW for 6 minutes and 20 minutes, respectively.
Generally speaking, simulations results are in a good agreement with experimental observations.
The following conclusions can be drawn form simulation results: 1.
Online since: September 2011
Authors: Xiao Min Li, Hai Yan Guo, Jing Zhao
Numerical Simulation of Vortex-induced Vibration for Two Circular Cylinder in Tandem Arrangement
Jing Zhao 1,a , Haiyan Guo1,b and Xiaomin Li1,c
1 College of Engineering, Ocean University of China, Qingdao, Shandong, 266100, China
amirror830@163.com, bhyguo@ouc.edu.cn, clixiaomin0318@163.com,
Keywords: CFD; two cylinders; tandem arrangement; vortex-induced vibration; a single and two degrees of freedom.
The results of numerical simulation for a single cylinder by the present method are observed close to the data of experiment.
Besides, other researchers using computational method, and some of these people are trying to solve the FSI problems by coupling computational fluid dynamics (CFD) and computational structural dynamics (CSD).
Murakami[4] extended large eddy simulation to conduct the cases of the flow past out an oscillating 2D square cylinder at cross-flow.
Conclusions In this paper, the vortex-induced vibration of a single and two cylinders separated by 5.5D in tandem arrangement is studied numerically by using CFD and CSD together.
The results of numerical simulation for a single cylinder by the present method are observed close to the data of experiment.
Besides, other researchers using computational method, and some of these people are trying to solve the FSI problems by coupling computational fluid dynamics (CFD) and computational structural dynamics (CSD).
Murakami[4] extended large eddy simulation to conduct the cases of the flow past out an oscillating 2D square cylinder at cross-flow.
Conclusions In this paper, the vortex-induced vibration of a single and two cylinders separated by 5.5D in tandem arrangement is studied numerically by using CFD and CSD together.
Online since: July 2013
Authors: Yang Yue, William D. Griffiths, Nick R. Green
In the present research an algorithm using the particle tracking capability of a commercial computational fluid dynamics (CFD) software to capture free surface entrainment events was applied to simulations of mould filling.
Fig. 1 shows the dimensions of the mould used for simulation and experimental validation.
The geometry of the mould used for the casting experiment and simulations.
To simplify the simulation, the model used single-phase CFD software, and considered only that double oxide films formed during mould filling.
Gebelin, Assessment of Casting Filling by Modeling Surface Entrainment Events Using CFD, in: 2010 TMS Annual Meeting & Exhibition, 2010
Fig. 1 shows the dimensions of the mould used for simulation and experimental validation.
The geometry of the mould used for the casting experiment and simulations.
To simplify the simulation, the model used single-phase CFD software, and considered only that double oxide films formed during mould filling.
Gebelin, Assessment of Casting Filling by Modeling Surface Entrainment Events Using CFD, in: 2010 TMS Annual Meeting & Exhibition, 2010
Online since: December 2014
Authors: Qin Wu, Chun Li Lei, Zhi Yuan Rui, Te Li
In this article, based on thermodynamics, heat transfer theory and fluid dynamics control theory, the temperature field of motorized spindle with cooling system at steady state is studied by FEA and CFD methods.
Secondly, the three-dimensional model is imported CFX simulation module, and in this model the coolant is added into the cooling water storage.
The simulation process in detail was described in other paper and need not be repeated here.
Conclusion In this paper, the relation between the heat flux of motor and the flow velocity of coolant is studied using CFD and the comprehensive test method.
Simulation and experimental analysis for high- speed spindle with water-cooling system [J].
Secondly, the three-dimensional model is imported CFX simulation module, and in this model the coolant is added into the cooling water storage.
The simulation process in detail was described in other paper and need not be repeated here.
Conclusion In this paper, the relation between the heat flux of motor and the flow velocity of coolant is studied using CFD and the comprehensive test method.
Simulation and experimental analysis for high- speed spindle with water-cooling system [J].
Online since: October 2011
Authors: Jing Lei Xu, Yong Bo Yang, Rui Gu
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.
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.
Online since: August 2013
Authors: Constantin Narcis Ostahie, Tudor Sajin
A Study of an Ion-Drag Pump Characteristics
OSTAHIE Constantin Narcisa and SAJIN Tudorb
,,Vasile Alecsandri’’, University of Bacau, Bacău, România
a ostahien@yahoo.com, bsajin_tudor@yahoo.com
Keywords: electrohydrodynamic, ion-drag pump, dielectric liquids, CFD modeling.
In present, the methods of analysis the EHD pumps with modeling and simulation programs are presenting a big interest.
Using CFD software for numerical simulation of an electrohydrodynamic pump for dielectric liquids is useful for a better understanding of the process.
At an applied potential V=25 kV, the maximum average fluid velocity obtained from simulations is = 0.2 cm/s.
Summary Using CFD software to study ion-drag pump characteristics is useful for visualize and investigate the process of electrohydrodynamic pumping of dielectric liquids.
In present, the methods of analysis the EHD pumps with modeling and simulation programs are presenting a big interest.
Using CFD software for numerical simulation of an electrohydrodynamic pump for dielectric liquids is useful for a better understanding of the process.
At an applied potential V=25 kV, the maximum average fluid velocity obtained from simulations is = 0.2 cm/s.
Summary Using CFD software to study ion-drag pump characteristics is useful for visualize and investigate the process of electrohydrodynamic pumping of dielectric liquids.
Online since: August 2013
Authors: Chong Jie Wang, Wei Wei Liu
Section 3 stated simulation assumptionsfor theexistingscenarios.
This report adopted two simulation techniques: Zonal Airflow Modelling technique and Computational Fluid Dynamics (CFD) approach.
Assumptions made for computer simulation Building construction.In simulation model, building fabric was set to be default value in IES.
Accumulated hours of wind speed of Manchester, UK Other assumptions.Generally, MacroFlow simulation results utilized as boundary condition for CFD, after conducted results from MacroFlow, CFD simulation was then carried out.
MicroFlo (CFD) User Guide 6.0.
This report adopted two simulation techniques: Zonal Airflow Modelling technique and Computational Fluid Dynamics (CFD) approach.
Assumptions made for computer simulation Building construction.In simulation model, building fabric was set to be default value in IES.
Accumulated hours of wind speed of Manchester, UK Other assumptions.Generally, MacroFlow simulation results utilized as boundary condition for CFD, after conducted results from MacroFlow, CFD simulation was then carried out.
MicroFlo (CFD) User Guide
Online since: October 2017
Authors: Bin Tang Yang, Hu Yu, Xiao Qing Sun, Xi Wang, Hang Jie Mo
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.
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.