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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: July 2022
Authors: Mohammadreza Kadivar, Marion McAfee, Gerard McGranaghan, David Tormey, Mandana Kariminejad
In this process, CFD simulations in ANSYS-Fluent were used to study and optimise the coolant flow in CCCs.
Flow simulation in ANSYS-Fluent 4.
As an intermediate step in the design, the CFD results can be used to test for possible problems and to trial modifications before proceeding to complete simulations of the entire mould.
The CFD simulations were performed using Finite Volume method (FVM) to solve the Navier-Stokes equations in ANSYS-Fluent.
CFD simulations in ANSYS-Fluent were performed to evaluate flow dynamics and distribution in the CCCs.
Flow simulation in ANSYS-Fluent 4.
As an intermediate step in the design, the CFD results can be used to test for possible problems and to trial modifications before proceeding to complete simulations of the entire mould.
The CFD simulations were performed using Finite Volume method (FVM) to solve the Navier-Stokes equations in ANSYS-Fluent.
CFD simulations in ANSYS-Fluent were performed to evaluate flow dynamics and distribution in the CCCs.
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 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: 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, Hong Mei Zheng, Cui Liu, Tao Liang, Feng Wang, Xin Feng Liu, Qiong Wang, Min Hua Zhang
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: December 2014
Authors: Shun Kang, Xiao Ming Chen
Barnsley and Narramore[2, 3]have researched the dynamic stall in a wind turbine by means of CFD method.
Meanwhile, Voutsinas[5]have focused on the flow field in yaw through the CFD method.
Among them, the "CFD" as theFluent software numerical results; "EXP" as the experimental value, the following chart is the same.
Results show that the tangential force coefficient, normal force coefficient and the pressure distribution of the section, the accord well with those of CFD calculation value and experimental value, proved this method of CFD analysis is reliable accuracy.
Navier-Stokes simulation of the NREL combined experiment Phase II rotor[C].
Meanwhile, Voutsinas[5]have focused on the flow field in yaw through the CFD method.
Among them, the "CFD" as theFluent software numerical results; "EXP" as the experimental value, the following chart is the same.
Results show that the tangential force coefficient, normal force coefficient and the pressure distribution of the section, the accord well with those of CFD calculation value and experimental value, proved this method of CFD analysis is reliable accuracy.
Navier-Stokes simulation of the NREL combined experiment Phase II rotor[C].
Online since: October 2011
Authors: Moslem Yousefi, F. Ommi, Mehdi Farajpour
However, CFD simulation ,as inseparable part of engine design, has helped researchers and engineers to overcome these problems.
Engine designers take advantage of CFD simulations to develop better understanding of different stages of engine cycle to be able to make engines satisfy stringent emission and fuel consumption standards[3].
The mesh that is used in the CFD simulation is shown in Fig.2 The mesh is generated by ICEM-CFD.
Validation of CFD model B.
Amount of CO emission at the end of engine cycle Conclusion A CFD simulation of whole engine cycle is presented using KIVA-3V.
Engine designers take advantage of CFD simulations to develop better understanding of different stages of engine cycle to be able to make engines satisfy stringent emission and fuel consumption standards[3].
The mesh that is used in the CFD simulation is shown in Fig.2 The mesh is generated by ICEM-CFD.
Validation of CFD model B.
Amount of CO emission at the end of engine cycle Conclusion A CFD simulation of whole engine cycle is presented using KIVA-3V.
Online since: July 2014
Authors: Ramasami Sivakumar, Ashish Mogrekar
The study aims to carry out highly accurate CFD simulations of passive flow control devices, namely, the micro-ramp in order to provide detailed insights into the flow field.
Computational Methodology The micro ramp model considered for our CFD analysis is shown in Fig. 1.
The 3-D simulations were carried out using the commercial software ANSYS FLUENT 14.
The results obtained from CFD are strongly supporting the experimental results.
Flow structures obtained using CFD simulation are compared with available experimental data.
Computational Methodology The micro ramp model considered for our CFD analysis is shown in Fig. 1.
The 3-D simulations were carried out using the commercial software ANSYS FLUENT 14.
The results obtained from CFD are strongly supporting the experimental results.
Flow structures obtained using CFD simulation are compared with available experimental data.
Online since: July 2014
Authors: Yi Sun, Hai Tao Shi, Yuan Ze Wu, Bai Feng Ji
Study on the downburst field characteristics under the influence of two-dimensional continuous mountains at different distance
Yi Sun1, a, Yuanze Wu1, Haitao Shi1, Baifeng Ji2
1 School of Civil Engineering and Architecture, Wuhan University of Technology Wuhan, China, 430070
2 Hubei Key Laboratory of Roadway Bridge &Structure Engineering, Wuhan University of Technology Wuhan, China, 430070
a274118038@qq.com
Keywords: downburst; wind field characteristics; continuous mountains; CFD numerical simulation;
Abstract.
In this thesis, the changes of the wind field characteristics under the influence of continuous mountains at different distance after the downburst happened are studied by CFD numerical simulation.
And CFD method using commercial software FLUENT can effectively simulates the whole process of the downburst field characteristics under the influence of two-dimensional continuous mountains at different distance.
Numerical Simulations of an Isolated Microburst.
Downburst simulations experimental and numerical challenges[C].Proceedings of the 2004 Structures Congress 2Building on the Past: Securing the Future, 2004: 1657 – 1664 [7] Mason M. physical simulation of thunderstorm downbursts [D].Masters thesis, Lubbock (TX, USA): Texas Tech Unversiity, 2003.
In this thesis, the changes of the wind field characteristics under the influence of continuous mountains at different distance after the downburst happened are studied by CFD numerical simulation.
And CFD method using commercial software FLUENT can effectively simulates the whole process of the downburst field characteristics under the influence of two-dimensional continuous mountains at different distance.
Numerical Simulations of an Isolated Microburst.
Downburst simulations experimental and numerical challenges[C].Proceedings of the 2004 Structures Congress 2Building on the Past: Securing the Future, 2004: 1657 – 1664 [7] Mason M. physical simulation of thunderstorm downbursts [D].Masters thesis, Lubbock (TX, USA): Texas Tech Unversiity, 2003.