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Online since: February 2011
Authors: Xiao Lin Li, Guang Lin He
With the rapid development of the computational fluid dynamics(CFD), CFD tools to analyze the aerodynamic characteristics of aircraft have been widely used in the aircraft design phase.
Simulation Model Computational Grid.
Simulation is effective.
Journal of System Simulation 2010,s1
[7] Wilcox D: Turbulence modeling for CFD.
Simulation Model Computational Grid.
Simulation is effective.
Journal of System Simulation 2010,s1
[7] Wilcox D: Turbulence modeling for CFD.
Online since: February 2013
Authors: Tao Wang, Xin Min Yao, Xiu Yue Yang
Later, CFD method based on micro element becomes a powerful means for studying fluid in recent years [3].
CFD method is not limited by the hypothesis so it is fit for not only ship but also marine vehicle.
Although flow field can be analyzed by CFD, it is difficult to treat moving boundaries.
To verify feasibility of the composite scheme with CFD, straightly navigating of a conceptual amphibious vehicle was simulated.
Numerical Simulation Based on ALE Governing Equations of Fluid.
CFD method is not limited by the hypothesis so it is fit for not only ship but also marine vehicle.
Although flow field can be analyzed by CFD, it is difficult to treat moving boundaries.
To verify feasibility of the composite scheme with CFD, straightly navigating of a conceptual amphibious vehicle was simulated.
Numerical Simulation Based on ALE Governing Equations of Fluid.
Online since: August 2011
Authors: Neng Huan Wang, Zheng Zhang, Yu Shan Chen
In the study of engine-thermoelectric source, domestic and foreign scholars are using numerical methods[3]-[5] and CFD soft to simulate cars’ thermal system[6]-[9]. [10] and [11] established the models and made numerical simulations for a built-in thermoelectric generation system.
We Build and mesh the model of thermoelectric generator with the use of pre/E and ICEM CFD soft respectively.
STAR-CD Simulation.
System simulation requires different software.
Investigation of a Coupled CFD and Thermal Modeling Methodology for Prediction of Vehicle Underbody Temperatures.
We Build and mesh the model of thermoelectric generator with the use of pre/E and ICEM CFD soft respectively.
STAR-CD Simulation.
System simulation requires different software.
Investigation of a Coupled CFD and Thermal Modeling Methodology for Prediction of Vehicle Underbody Temperatures.
Online since: December 2016
Authors: Pavel Uher, Petr Blasinski, Aleš Rubina
Because conventional analytical methods for solving complicated case are insufficient, so there is selected prediction of thermal prediction by using CFD modelling.
Physics and Boundary Conditions, Pre-Processing It was necessary to create a simplified geometric model of simulated domain (see Figure 5) for CFD simulation.
Simplified geometric model for CFD.
The simulation is solved as three-dimensional, steady, stationary.
The simulation considers only overpressure ventilation at this space.
Physics and Boundary Conditions, Pre-Processing It was necessary to create a simplified geometric model of simulated domain (see Figure 5) for CFD simulation.
Simplified geometric model for CFD.
The simulation is solved as three-dimensional, steady, stationary.
The simulation considers only overpressure ventilation at this space.
Online since: August 2012
Authors: Fang Xu, Qi Chen, Jiao Liao Chen, Qin Lin Ai
The effects of perforation plate structure on water flow in plant xylem vessels were studied using CFD (computational fluid dynamics) approach, the calculation results were used to estimate the effects of the perforation plate on conductance.
The simulations were carried out using the commercial code FLUENT V6.13, which is based on the Navier-Stokes equations.
Results The simulation results of example model were show in Fig.3.
Discussion The results of simulation showed that the structure of perforation plate had a substantial effect on the vessel’s water conductivity.
Predictions of a Turbulent Separated Flow Using Commercial CFD Codes.
The simulations were carried out using the commercial code FLUENT V6.13, which is based on the Navier-Stokes equations.
Results The simulation results of example model were show in Fig.3.
Discussion The results of simulation showed that the structure of perforation plate had a substantial effect on the vessel’s water conductivity.
Predictions of a Turbulent Separated Flow Using Commercial CFD Codes.
Online since: April 2014
Authors: Ze Bei Wang, Rong Hui Chen, Shu Yao, Bao Qing Wang
Numerical Simulation of Air Distribution and Particle Movement in a Displacement Ventilated Room
Zebei Wang 1,a, Baoqing Wang 1,b, Ronghui Chen1,c, Shu Yao1,d
College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
a411173744@qq.com, bwbqchina@163.com, c13609223@njau.edu.cn, dmadkon@qq.com
Keywords: displacement ventilated room, numerical simulation, air movement, particle distribution
Abstract.
In this paper, the air movement and particle distribution in a displacement ventilation room is studied and analyzed through CFD numerical simulation method.
Results and discussions This paper selects two typical surfaces to describe the results of simulation, including X=1.65m which respects the profile through the center of room; X=0.6m which through the virtual human body.
Conclusions A CFD-based ventilation test method is presented in the study.
In this paper, the air movement and particle distribution in a displacement ventilation room is studied and analyzed through CFD numerical simulation method.
Results and discussions This paper selects two typical surfaces to describe the results of simulation, including X=1.65m which respects the profile through the center of room; X=0.6m which through the virtual human body.
Conclusions A CFD-based ventilation test method is presented in the study.
Online since: January 2011
Authors: Bing Nan Li, Yun Wang, Yong Kang Zhang, Tao Ni, Shen Tao Tang
The CFD application is common in the FPSO design and verification.
Hu et al [9] used CIP in simulation.
Zhu R.C. [11] utilized the potential flow theory and CFD to provide a new numerical simulation method which can reproduce green water process.
From the numerical simulations and analysis of green water, we can find that CFD and FLUENT have been commonly used in numerical simulation of green water.
CFD technology could completely simulate the interaction of ship and fluid, but it is not time-saving without high accuracy and reliability.
Hu et al [9] used CIP in simulation.
Zhu R.C. [11] utilized the potential flow theory and CFD to provide a new numerical simulation method which can reproduce green water process.
From the numerical simulations and analysis of green water, we can find that CFD and FLUENT have been commonly used in numerical simulation of green water.
CFD technology could completely simulate the interaction of ship and fluid, but it is not time-saving without high accuracy and reliability.
Online since: September 2014
Authors: Lin Xue, Lin Su, Li Jing Wang
Therefore the research on the CFD fire extinguishing simulation is rapidly developing these years.
Only implementing several effective tests associating with CFD simulation, both the cost of the test and the pollution will be highly reduced.
The employed computer simulation software is FDS.
Utilize the computer numerical simulation software to implement the fire extinguishing simulation with the different foam flow rate - 0.5L/min,0.8 L/min,1 L/min,1.5 L/min,2 L/min, etc. respectively.
Reduced-Scale Experiments on the Water Suppression of a Rack-Storage Commodity Fire for Calibration of a CFD Fire Model.
Only implementing several effective tests associating with CFD simulation, both the cost of the test and the pollution will be highly reduced.
The employed computer simulation software is FDS.
Utilize the computer numerical simulation software to implement the fire extinguishing simulation with the different foam flow rate - 0.5L/min,0.8 L/min,1 L/min,1.5 L/min,2 L/min, etc. respectively.
Reduced-Scale Experiments on the Water Suppression of a Rack-Storage Commodity Fire for Calibration of a CFD Fire Model.
Online since: June 2014
Authors: Jiang Feng Fu, Jia Li, Shu Hong Wang, Hua Cong Li
The final structure parameters were obtained by CFD numerical simulation optimization iterately.
Simulation results show that: The combination vortex pump meet the design requirements.
Numerical simulation and analysis The main geometric parameters of three stage combination vortex pump acquired in table 1.
Then CFD numerical simulation is carried out to optimize the structural parameters of the pump.
“Design and Simulation of Aero-engine High Pressure Centrifugal Pump,” Computer Simulation, vol.28, 2011 pp. 84-87
Simulation results show that: The combination vortex pump meet the design requirements.
Numerical simulation and analysis The main geometric parameters of three stage combination vortex pump acquired in table 1.
Then CFD numerical simulation is carried out to optimize the structural parameters of the pump.
“Design and Simulation of Aero-engine High Pressure Centrifugal Pump,” Computer Simulation, vol.28, 2011 pp. 84-87
Online since: October 2009
Authors: Tung-Hsin Yeh, Jiin Yuh Jang, Yu Bin Chen, Der Her Wang
., China Steel Corporation, Kaohsiung, Taiwan
a
n1696411@ccmail.ncku.edu.tw,
b
jangjim@mail.ncku.edu.tw
cybchen@mail.ncku.edu.tw,
d
145649@mail.csc.com.tw
Keywords: Coke oven, Numerical simulation, Thermoelectric cooler
Abstract.
In this paper, the necessary conditions of the inspective device were found out by building a three-dimensional numerical model of the device to simulate the temperature distribution inside the device with CFD commercial software.
Numerical Method In this study, the commercially available finite volume method software, CFDRC [3], has been used to carry out CFD simulations.
Spalding: Mathematical Models of Turbulence, Chap. 5, pp. 90-100, Academic, London. (1972) [3] CFD-ACE, CFD Research Corporation, Alabama, USA. (2003) 280 5 A-A Heat sink TEC Copper Camera Quartz glass IR filter Insulation A A Air Air 420 280 Unit: mm Fig. 1: The Schematic diagram of the insulated box Computational Domain y z x Air Inlet Box surface heat flux Air Outlet Quartz Glass IR Filter Camera Lens TEC Hot-end heat source=+q''+Pin Cold-end heat sink= -q'' Fig. 2: The computational domain and boundary conditions V (m/s) Fig. 3: The stream line distribution inside the inspection device T (℃) 30 35 45 50 55 60 80 65 70 75 40 T (℃) 30 50 200 350 500 650 800 950 1100 1200 Air CCD TEC Fig. 4: The temperature distribution of the insulation and CCD camera 3 3.5 4 4.5 5 flow rate (Nm3/min) 0 10 20 30 40 50 60 70 80 T ( oC ) air inlet temperature to insulated box
In this paper, the necessary conditions of the inspective device were found out by building a three-dimensional numerical model of the device to simulate the temperature distribution inside the device with CFD commercial software.
Numerical Method In this study, the commercially available finite volume method software, CFDRC [3], has been used to carry out CFD simulations.
Spalding: Mathematical Models of Turbulence, Chap. 5, pp. 90-100, Academic, London. (1972) [3] CFD-ACE, CFD Research Corporation, Alabama, USA. (2003) 280 5 A-A Heat sink TEC Copper Camera Quartz glass IR filter Insulation A A Air Air 420 280 Unit: mm Fig. 1: The Schematic diagram of the insulated box Computational Domain y z x Air Inlet Box surface heat flux Air Outlet Quartz Glass IR Filter Camera Lens TEC Hot-end heat source=+q''+Pin Cold-end heat sink= -q'' Fig. 2: The computational domain and boundary conditions V (m/s) Fig. 3: The stream line distribution inside the inspection device T (℃) 30 35 45 50 55 60 80 65 70 75 40 T (℃) 30 50 200 350 500 650 800 950 1100 1200 Air CCD TEC Fig. 4: The temperature distribution of the insulation and CCD camera 3 3.5 4 4.5 5 flow rate (Nm3/min) 0 10 20 30 40 50 60 70 80 T ( oC ) air inlet temperature to insulated box