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Online since: October 2013
Authors: Ya Xin Su, Xiao Wei Xu
Computational Fluid Dynamics (CFD) method was used to calculate the airflow and heat transfer performance.
The simulations of air flow and heat transfer in vertical channel of BiPV-TW were conducted using the commercial CFD code, FLUENT version 6.3[10].
Results Validation of the CFD method.
Gan [4] has numerically investigated the behavior of natural ventilation in a vertical cavity based on CFD method.
The air flow in the channel was numerically simulated based on CFD method.
The simulations of air flow and heat transfer in vertical channel of BiPV-TW were conducted using the commercial CFD code, FLUENT version 6.3[10].
Results Validation of the CFD method.
Gan [4] has numerically investigated the behavior of natural ventilation in a vertical cavity based on CFD method.
The air flow in the channel was numerically simulated based on CFD method.
Online since: November 2012
Authors: Liang Zhang, Khalid Syed Shah
China (Harbin)
1, 2Deep Water Engineering Research Centre (Harbin Engineering University)
ashahkhalidshah@yahoo.com (corresponding author), bzhangliang@hrbeu.edu.cn
Keywords: Tidal energy, Vertical axis tidal turbine, Renewable energy, CFD, CFX simulation, Variable pitch
Abstract.
The modeling and meshing of turbine rotor is performed in ICEM-CFD.
ICEM CFD is used to model a rotor domain, blade domain and stationary fluid domain.
Discussion & Conclusion A comprehensive CFD study is carried out for variable pitch VATT in ANSYS CFX, and numbers of hydrodynamic parameters are studied.
Airfoil optimization of vertical-axis turbines based on CFD method. 2nd International conf. on computer modeling & simulation (2010), p.199-202
The modeling and meshing of turbine rotor is performed in ICEM-CFD.
ICEM CFD is used to model a rotor domain, blade domain and stationary fluid domain.
Discussion & Conclusion A comprehensive CFD study is carried out for variable pitch VATT in ANSYS CFX, and numbers of hydrodynamic parameters are studied.
Airfoil optimization of vertical-axis turbines based on CFD method. 2nd International conf. on computer modeling & simulation (2010), p.199-202
Online since: October 2014
Authors: Mujibur M. Rahman, H.Y. Rahman, T.J. Hua
Simulation using Computational Fluid Dynamics (CFD) for both cooling systems has been carried out to have better understanding.
CFD results are compared with some of the analytical results.
Two working fluids were considered for both analytical and CFD simulation, i.e., water and ethylene glycol.
Computational Fluid Dynamics (CFD) simulation is carried out for liquid cooled plate heat exchanger.
For water flow, the simulation results for five different mass flow rates were compared with analytical results (Table 3).
CFD results are compared with some of the analytical results.
Two working fluids were considered for both analytical and CFD simulation, i.e., water and ethylene glycol.
Computational Fluid Dynamics (CFD) simulation is carried out for liquid cooled plate heat exchanger.
For water flow, the simulation results for five different mass flow rates were compared with analytical results (Table 3).
Online since: October 2010
Authors: Bing Xiao, Xiao Wang, Ai Guo Shi, Ming Wu
The simulation results showed good
agreement with the results of tank test.
At present, one keypoint of open-water propeller research based on CFD is to improve predicting precision of viscous flow[1].
The simulation results showed good agreement with tank test for most quadrants.
[3] ]FENG XUE-MEI, CHEN FENG-MING, CAI RONG-QUAN: Calculation of propeller open water performance by CFD software FLUENT.
Vol.22(2008), p. 15-20 [7] WANG CHAO, HUANG SHENG, XIE XUE CAN: Hydrodynamic performance prediction of some propeller based on CFD.
At present, one keypoint of open-water propeller research based on CFD is to improve predicting precision of viscous flow[1].
The simulation results showed good agreement with tank test for most quadrants.
[3] ]FENG XUE-MEI, CHEN FENG-MING, CAI RONG-QUAN: Calculation of propeller open water performance by CFD software FLUENT.
Vol.22(2008), p. 15-20 [7] WANG CHAO, HUANG SHENG, XIE XUE CAN: Hydrodynamic performance prediction of some propeller based on CFD.
Online since: October 2015
Authors: Cristiana Brasil Maia, Luiz F.R. Ledo, Sérgio de M. Hanriot, Guilherme L.F. de Vasconcellos, Matheus D. de Queiroz
Determination of the Diameter of a Cylinder to Insertion in a Low-speed Wind Tunnel based on EFD and CFD
VASCONCELLOS, Guilherme L.F. de1, a, QUEIROZ, Matheus D. de1,2, b, LEDO, Luiz F.
The approaches used were the experimental fluid dynamics (EFD) by the use of Pitot tube and hot wire anemometer (HWA) and the computational fluid dynamics (CFD) simulations, performed with ANSYS CFX software.
They should be tested through experiments or approximated by the CFD techniques, like in flow around circular cylinders case.
CFD techniques are not able to replace the experimental tests, since they require experimental validation, usually made in wind tunnels [8].
Velocity profile validation EFD x CFD As can be seen, the numerical results were validated showing better agreement with the hot wire anemometry technique.
The approaches used were the experimental fluid dynamics (EFD) by the use of Pitot tube and hot wire anemometer (HWA) and the computational fluid dynamics (CFD) simulations, performed with ANSYS CFX software.
They should be tested through experiments or approximated by the CFD techniques, like in flow around circular cylinders case.
CFD techniques are not able to replace the experimental tests, since they require experimental validation, usually made in wind tunnels [8].
Velocity profile validation EFD x CFD As can be seen, the numerical results were validated showing better agreement with the hot wire anemometry technique.
Online since: January 2013
Authors: Yin Hu Qu, Min Hua Zhang, Hong Mei Zheng, Cui Liu, Tao Liang, Feng Wang, Xin Feng Liu, Qiong Wang
China,471009
aquyinhu@sina.com, bquyinhu@xpu.edu.cn
Keywords: Hema-type nozzle, inner channel, numerical simulation, Fluent,Gambit, optimal design
Abstract. the inner flow fields of twelve Hema-type ATY nozzles which have different structure and parameters are simulated by the Fluent software, which is based on the CFD (Computational Fluid Dynamics) theory.Then the simulation results are analyzed,through wich the best designed nozzle is determined.
At present time, FLUENT is one of the best modern CFD software which can be used to simulate the inner flow filed of nozzle[2,3].
In this paper, the inner flow fields of twelve different Hema-type ATY nozzles which have different structure and parameters are simulated by the Fluent software, which is based on the CFD (Computational Fluid Dynamics) theory.Then the simulation results are analyzed,through wich the best nozzle is determined.
Simulation of the Inner Flow Field of Hema-Type ATY Nozzle.
One Validation Case of the CFD Software Fluent: Part of the Development Effort of a new Reactor Analysis Tool, Proceedings of International Conference on Nuclear Engineering, ICONE, 2002; 913-919
At present time, FLUENT is one of the best modern CFD software which can be used to simulate the inner flow filed of nozzle[2,3].
In this paper, the inner flow fields of twelve different Hema-type ATY nozzles which have different structure and parameters are simulated by the Fluent software, which is based on the CFD (Computational Fluid Dynamics) theory.Then the simulation results are analyzed,through wich the best nozzle is determined.
Simulation of the Inner Flow Field of Hema-Type ATY Nozzle.
One Validation Case of the CFD Software Fluent: Part of the Development Effort of a new Reactor Analysis Tool, Proceedings of International Conference on Nuclear Engineering, ICONE, 2002; 913-919
Online since: August 2013
Authors: Jian Sheng Chen, Hui Gang Sun, Chao Lu, Qing Zheng, Yi Ren Liu
So it is critical to have temperature rise analysis for hot spot and prediction in the period of prototype design using finite element method, such as CFD.
Relative to method of thermal-network, CFD has provided more accurate air convection model and different boundary condition definition, thus it could be an original data for other serial product simulation.
The development tasks were carriedout by intensively using FEM simulation tools.
Figure 1Boundary condition and mesh Simulation results.The static and transient simulations are done.
Figure 5 Compare between experiment and simulation in location3# Transformer simulation with grilling Boundary conditions.
Relative to method of thermal-network, CFD has provided more accurate air convection model and different boundary condition definition, thus it could be an original data for other serial product simulation.
The development tasks were carriedout by intensively using FEM simulation tools.
Figure 1Boundary condition and mesh Simulation results.The static and transient simulations are done.
Figure 5 Compare between experiment and simulation in location3# Transformer simulation with grilling Boundary conditions.
Online since: August 2015
Authors: Ovinis Mark, Syed Saad Azhar Ali, Ullah Barkat, T. Nagarajan, Javaid Muhammad Yasar
In this paper, the steady state motion and performance of the gliding robot fish is investigated using CFD simulation.
Hydrodynamic Coefficients Based On CFD: The hydrodynamic coefficients were determined using a computational fluid dynamics (CFD) software package [11] by passing fluid over the gliding robotic fish.
Simulation Setup: For the CFD simulation, a solid 3D model of the gliding robotic fish was created using Solid-works software as shown in Fig. 3.
After defining the boundary condition, the lift, drag and moment coefficient were determined from CFD simulation, and are shown in Table 1.
The simulation results match the experimental results for wings with an aspect ratio of 1.6 and 2.9 respectively by Feitian et al. [3] as shown in Table 2.
Hydrodynamic Coefficients Based On CFD: The hydrodynamic coefficients were determined using a computational fluid dynamics (CFD) software package [11] by passing fluid over the gliding robotic fish.
Simulation Setup: For the CFD simulation, a solid 3D model of the gliding robotic fish was created using Solid-works software as shown in Fig. 3.
After defining the boundary condition, the lift, drag and moment coefficient were determined from CFD simulation, and are shown in Table 1.
The simulation results match the experimental results for wings with an aspect ratio of 1.6 and 2.9 respectively by Feitian et al. [3] as shown in Table 2.
Online since: October 2014
Authors: Zhe Shi, Xiao Lei Zhou, Zhong Ning Du, Gui Fang Zhang
The plume model is presented by Xiao Zeqiang in 1980, then the numerical simulation began to develop rapidly.
1 Background
Computational Fluid Dynamics, referred to as CFD, is the base of numerical simulation.
CFD is equivalent to the "virtual" experiments on the computer.
Using CFD methodsare applied to numerical simulation of fluid flow, usually consists of four steps.
These contents can be said to be the core of CFD.
After the final steel temperature and composition are analyzed.So the ladle move to the continuous casting. 3 Mathematical simulation status With the development of computer hardware and fluid dynamics software (CFD) development, numerical simulation method has got good application asa low cost, fast speed, good effectmethod in the field of metallurgy.Refining ladle inner mathematical simulation about temperature field, concentration field, flow field study can quickly pointed out to explore the range of physical simulation.Most mathematical model is based on the physical theory, and algebraic method is described the physical process and solution.
CFD is equivalent to the "virtual" experiments on the computer.
Using CFD methodsare applied to numerical simulation of fluid flow, usually consists of four steps.
These contents can be said to be the core of CFD.
After the final steel temperature and composition are analyzed.So the ladle move to the continuous casting. 3 Mathematical simulation status With the development of computer hardware and fluid dynamics software (CFD) development, numerical simulation method has got good application asa low cost, fast speed, good effectmethod in the field of metallurgy.Refining ladle inner mathematical simulation about temperature field, concentration field, flow field study can quickly pointed out to explore the range of physical simulation.Most mathematical model is based on the physical theory, and algebraic method is described the physical process and solution.
Online since: September 2011
Authors: Jian Wang, Hong Bing Yang
Optimal Design Grape Rain Shed Based on CFD and GSCAD
Jian Wang 1, a, Hong Bing Yang 2, b
1College of Horticulture, Nanjing Agricultural University, Nanjing, China 210095
2College of Engineering, Nanjing Agricultural University, Nanjing, China 210031
awangjian@njau.edu.cn, bhbang@njau.edu.cn
Keywords: CFD, Plated PE plastic steel pipe, Multi-span grape rain shed, GSCAD, Design
Abstract.
The wind pressure distribution of multi-span grape rain shed frame is simulated by CFD software, and the structure of multi-span grape rain shed is optimized in this paper.
Fig. 1 Schematic diagram multi-span grape rain shed Introduction to CFD numerical simulation method Computational fluid dynamics (CFD) is a sophisticated design and analysis tool that allows us to study different design limitations based on a computational model.
The CFD software used in the present work was FLUENT 6.2.
Wind pressure distribution simulation of multi-span grape rain shed based on CFD.
The wind pressure distribution of multi-span grape rain shed frame is simulated by CFD software, and the structure of multi-span grape rain shed is optimized in this paper.
Fig. 1 Schematic diagram multi-span grape rain shed Introduction to CFD numerical simulation method Computational fluid dynamics (CFD) is a sophisticated design and analysis tool that allows us to study different design limitations based on a computational model.
The CFD software used in the present work was FLUENT 6.2.
Wind pressure distribution simulation of multi-span grape rain shed based on CFD.