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Online since: May 2011
Authors: Ting Ting Wang, Xue Lai Liu, Teng Xing, Yong An Li
This document established a three-dimensional laminar mathematical and physical model which describes heat transfer, mass transfer coupling process in wet thermal recovery unit for air-conditioning systerms, based on Computational Fluid Dynamics (CFD) simulations.
This paper will adopt CFD method to simulate, approach temperature, pressure and concentration distribution of heat recovery unit, and analyse the simulation results so as to provide guidance for the optimization of wet heat recovery unit for air-conditioning systerm.
First of all, the simulation area and reference frame must be determined.
As shown in Fig.2, the area of central symmetric plane between fresh air and exhaust air channel is selected as the simulation area.
Simulation Results and Analysis As shown in Fig.3, the fresh air temperature gradually decreases with the flow direction and from channel center to the heat transfer plate surface. the air temperature of heat transfer plate surface is far lower than that of channel center.
This paper will adopt CFD method to simulate, approach temperature, pressure and concentration distribution of heat recovery unit, and analyse the simulation results so as to provide guidance for the optimization of wet heat recovery unit for air-conditioning systerm.
First of all, the simulation area and reference frame must be determined.
As shown in Fig.2, the area of central symmetric plane between fresh air and exhaust air channel is selected as the simulation area.
Simulation Results and Analysis As shown in Fig.3, the fresh air temperature gradually decreases with the flow direction and from channel center to the heat transfer plate surface. the air temperature of heat transfer plate surface is far lower than that of channel center.
Online since: October 2013
Authors: Chong Wang, Fan Han Liu, Shi Bo Wang, Dao Fei Zhu, Hua Wang
Keywords: slag cleaning furnace; reducing oil lance; liquid level tracking; CFD simulation
Abstract: In view of the serious problems that low-rate reduction and excessive oil consumption of reducing oil guns which are used in the depleted EAF, analyzing the jet mixing process through the CFD simulation with the method of liquid level tracking, we find that the purpose of mixing slag layer, guaranteeing matte layer precipitation and saving oil can be achieved by changing combination of gas rate of mixture injected by the oil gun, jet speed and insertion depth.
This paper mainly performs simulation for jet flow field in the slag cleaning furnace.
Interpretation of result We try to make a simple air jet model at the beginning of simulation.
Conclusion (1) The study simulates flow field developing process, for oil guns injection process, simulation results may emulate the flow field well in the pool
A Practical Course in FLUENT fluid Analysis and Simulation[M].
This paper mainly performs simulation for jet flow field in the slag cleaning furnace.
Interpretation of result We try to make a simple air jet model at the beginning of simulation.
Conclusion (1) The study simulates flow field developing process, for oil guns injection process, simulation results may emulate the flow field well in the pool
A Practical Course in FLUENT fluid Analysis and Simulation[M].
Online since: April 2011
Authors: He Huang, Zhuo Qiu Li, Sheng Jun Wu, Jin Fan Fei
Thus, numerical simulation tools are gaining wider acceptance as they become more sophisticated in their predictive capability as well as offering a route to significantly lower developmental costs [1-3].
This paper uses CFD software- FLUENT to execute numerical calculation of wind pressure under the above two load cases.
Implementation The numerical simulation of CFD technique is selected as an appropriate method according to the actual aerodynamics characteristics and design experience of the blade.
This paper uses the CFD software FLUENT to simulate the air force on the above two kinds of working conditions of the blade by numerical simulation.
After the simulation by using the software MATLAB, the functional relations are as follows: when: (1) In Eq. 1 , .
This paper uses CFD software- FLUENT to execute numerical calculation of wind pressure under the above two load cases.
Implementation The numerical simulation of CFD technique is selected as an appropriate method according to the actual aerodynamics characteristics and design experience of the blade.
This paper uses the CFD software FLUENT to simulate the air force on the above two kinds of working conditions of the blade by numerical simulation.
After the simulation by using the software MATLAB, the functional relations are as follows: when: (1) In Eq. 1 , .
Online since: January 2013
Authors: Hong Mei Li, Yan Liang Li, Xing Fang, Guo Hui Shi, Yan Xuan, Lan Wang
High-speed train passing through the noise barriers is a large deformation in CFD.
The large deformation needs to use the dynamic mesh of the CFD.
In this study, based on dynamic mesh technology and large eddy simulation method, the whole process of the train passing through noise barriers is simulated by computational fluid dynamics (CFD) software.
The study has 20 simulation conditions.
The simulation calculation parameters are reasonable and the simulation models are correct according to the Table .
The large deformation needs to use the dynamic mesh of the CFD.
In this study, based on dynamic mesh technology and large eddy simulation method, the whole process of the train passing through noise barriers is simulated by computational fluid dynamics (CFD) software.
The study has 20 simulation conditions.
The simulation calculation parameters are reasonable and the simulation models are correct according to the Table .
Online since: July 2014
Authors: G. Srinivas, Srinivasa Rao Potti
asrinivasle06@gmail.com, bsrinivasapotty@yahoo.co.in
Keywords: Fighter Aircraft, Wing, CFD, transonic.
For this the fighter aircraft wing performance for various flow conditions and sweep angles are obtained based on the empirical, semi-empirical and CFD simulation results.
To understand much more in transonic flow over the wing body this paper deals completely CFD analysis.
Methodology: The analysis used CFD to decide the flow field and aerodynamic coefficients on a fighter aircraft wing configuration.
For this the fighter aircraft wing performance for various flow conditions and sweep angles are obtained based on the empirical, semi-empirical and CFD simulation results.
To understand much more in transonic flow over the wing body this paper deals completely CFD analysis.
Methodology: The analysis used CFD to decide the flow field and aerodynamic coefficients on a fighter aircraft wing configuration.
Online since: March 2015
Authors: Shun Kang, Wei Zuo
The unsteady wake effect of upstream wind turbine on the aerodynamic performance of downstream wind turbine is investigated using CFD simulations in this paper with two two-dimensional models of H-type wind turbine of three same blades.
It is difficult to generate grids and need to cost more time to generate good quality grids using traditional CFD software.
(a)t=0T (b)t=1/6T (c)t=2/6T (d)t=3/6T (e)t=4/6T (f)t=5/6T Fig.5 The velocity contours with different time in one circle (S=15D) Conclusions The unsteady viscous flow field of two two-dimensional models of H-type wind turbine with different distances of three same blades is investigated using CFD simulations in this paper.
Simulations of the Fluid Flow around a rotating Vertical Axis Wind Turbine [J].
Numerical simulation of The Aerodynamic Performance of H Type Wind Turbine [J].
It is difficult to generate grids and need to cost more time to generate good quality grids using traditional CFD software.
(a)t=0T (b)t=1/6T (c)t=2/6T (d)t=3/6T (e)t=4/6T (f)t=5/6T Fig.5 The velocity contours with different time in one circle (S=15D) Conclusions The unsteady viscous flow field of two two-dimensional models of H-type wind turbine with different distances of three same blades is investigated using CFD simulations in this paper.
Simulations of the Fluid Flow around a rotating Vertical Axis Wind Turbine [J].
Numerical simulation of The Aerodynamic Performance of H Type Wind Turbine [J].
Online since: September 2014
Authors: Mohd Zamri Abdullah, Hoang Huy Phuoc Loi Pham, Risza Rusli
The simulation results have a good agreement with the experiment.
The values of these parameters will be used to set up the validated CFD model.
In this study, the time step (0.1s) of CFD solution is time interval Δti.
Eisenberg, Vulnerability Model: A Simulation System for Assessing Damage Resulting from Marine Spills.
Guo-ming, Quantitative risk analysis of toxic gas release caused poisoning-A CFD and dose-respoonse model combined approach.
The values of these parameters will be used to set up the validated CFD model.
In this study, the time step (0.1s) of CFD solution is time interval Δti.
Eisenberg, Vulnerability Model: A Simulation System for Assessing Damage Resulting from Marine Spills.
Guo-ming, Quantitative risk analysis of toxic gas release caused poisoning-A CFD and dose-respoonse model combined approach.
Online since: October 2011
Authors: W.A.N. W. Mohamed, M.F. Remeli, A.H.A. Hamid, R. Atan
e-mail: wanjerm3@yahoo.com.my
Keywords: PEM fuel cell; thermal analysis; CFD; cooling.
Analytical comparison on its cooling performance, air velocity and temperature distribution, plus characterizing its thermal gradient based on computational simulation using Computational Fluid Dynamics (CFD) codes are conducted as a platform for design optimization.
Analytical Models and simulation parameters A.
Ms60 60 1.95 2 150 1 Simulation Parameters The simulation was conducted using STAR-CCM Computational Fluid Dynamics (CFD) platform.
Table 2 lists the boundary conditions applied for both simulation cases.
Analytical comparison on its cooling performance, air velocity and temperature distribution, plus characterizing its thermal gradient based on computational simulation using Computational Fluid Dynamics (CFD) codes are conducted as a platform for design optimization.
Analytical Models and simulation parameters A.
Ms60 60 1.95 2 150 1 Simulation Parameters The simulation was conducted using STAR-CCM Computational Fluid Dynamics (CFD) platform.
Table 2 lists the boundary conditions applied for both simulation cases.
Online since: October 2013
Authors: Yun Fei Chen, Qi Xia You, Fei Lu, Jianrun Zhang
Numerical Simulation
Numerical modeling and mesh.
The whole model is meshed in ICEM CFD.
Simulation results on Section A.
After calculation, results can be viewed in CFD-Post, which is designed to allow easy visualization and quantitative analysis of the results of CFD simulations.
Simulations have several advantages.
The whole model is meshed in ICEM CFD.
Simulation results on Section A.
After calculation, results can be viewed in CFD-Post, which is designed to allow easy visualization and quantitative analysis of the results of CFD simulations.
Simulations have several advantages.
Online since: November 2012
Authors: Kannan M. Munisamy, Savithry K. Thangaraju, Ramies Govindasamy
Thangaraju3,c
1.2.3College of Engineering, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43009, Kajang, Malaysia
akannan@uniten.edu.my, bramies@uniten.edu.my, csavithry@uniten.edu.my
Keywords: axial fan, CFD
Abstract.
To investigate the flow structure and to analyze qualitatively commercial CFD package, FLUENT is exploited.
The research of using CFD in designing axial fan guide vane would be cost effective.
(8) (9) Numerical Modeling Proprietary CFD software is used to create a 3-D model of 1250mm axial fan.
The design was initially made in the CAD software then was exported to ANSYS GAMBIT, the pre-processing software of the ANSYS FLUENT commercial CFD package.
To investigate the flow structure and to analyze qualitatively commercial CFD package, FLUENT is exploited.
The research of using CFD in designing axial fan guide vane would be cost effective.
(8) (9) Numerical Modeling Proprietary CFD software is used to create a 3-D model of 1250mm axial fan.
The design was initially made in the CAD software then was exported to ANSYS GAMBIT, the pre-processing software of the ANSYS FLUENT commercial CFD package.