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Online since: September 2013
Authors: Hasril Hasini, Norshah Hafeez Shuaib, Wan Ahmad Fahmi Wan Abdullah
Bhd., Jalan Air Hitam, 43000 Kajang Selangor
ahasril@uniten.edu.my
Keywords: syngas, can-type combustor, combustion, CFD, natural gas
Abstract.
This paper presents CFD analysis of the effect of syngas combustion in a full scale gas turbine combustor with specific emphasis given to the flame and flue gas temperature distribution.
The simulation result is validated with the flame temperature of typical natural gas combustion.
In this work, only a single can is considered for CFD model and the schematic diagram illustrating the can combustor is shown inFig.2.
Generation a good mesh is very important in CFD.
This paper presents CFD analysis of the effect of syngas combustion in a full scale gas turbine combustor with specific emphasis given to the flame and flue gas temperature distribution.
The simulation result is validated with the flame temperature of typical natural gas combustion.
In this work, only a single can is considered for CFD model and the schematic diagram illustrating the can combustor is shown inFig.2.
Generation a good mesh is very important in CFD.
Online since: August 2023
Authors: Gerardo Sanjuan-Sanjuan, Itzel Jazmín Ramirez-Calera, Ángel Enrique Chavez-Castellanos, Arturo Galindo-Solano
a*sanjuan_ges@quimica.unam.mx, barturocdg@gmail.com, citzel.calera@gmail.com, dangelencc@quimica.unam.mx
Keywords: Non-Newtonian, Simulation, Rheology, Semisolid alloys, CFD.
In order to study and A356 aluminum semisolid alloy flow, a Computational Fluid Dynamics (CFD) software (ANSYS) is used to simulate the die filling process in a rectangular mold.
Simulation was run without considering energy transfer.
Parameters used for the simulations of each constitutive model.
In general, simulations obtained in present work by using ANSYS software, have correspondence with other simulations [7-10].
In order to study and A356 aluminum semisolid alloy flow, a Computational Fluid Dynamics (CFD) software (ANSYS) is used to simulate the die filling process in a rectangular mold.
Simulation was run without considering energy transfer.
Parameters used for the simulations of each constitutive model.
In general, simulations obtained in present work by using ANSYS software, have correspondence with other simulations [7-10].
Online since: June 2014
Authors: Hai Bo Ji, Xiao Xu Wang, Li Tie Zhang
China
awxxbad@163.com
Keywords: marine propeller; flow field simulation; propeller performance analysis
Abstract.
With the development of computer technology, the computational fluid dynamics software functions have been greatly enhanced, in recent years, some researchers have been presented based on propeller open water performance of CFD numerical analysis method, and compare the calculated results with the traditional experimental data, prove in the propeller open water performance calculation, using CFD software to the results of numerical simulation can meet the requirements of engineering application [2].
Grid directly influences the quality and the way of dividing the simulation results, so point’s network is the one of the most critical parts in the process of numerical simulation.
References [1] Fudong Gao, Cunyun Pan, Wenshan Cai: Based on propeller open water performance of CFD numerical analysis and verification.
[2] Chao Wang, Sheng Huang, Xueshen Xie: Based on CFD method of the propeller hydrodynamic performance prediction.
With the development of computer technology, the computational fluid dynamics software functions have been greatly enhanced, in recent years, some researchers have been presented based on propeller open water performance of CFD numerical analysis method, and compare the calculated results with the traditional experimental data, prove in the propeller open water performance calculation, using CFD software to the results of numerical simulation can meet the requirements of engineering application [2].
Grid directly influences the quality and the way of dividing the simulation results, so point’s network is the one of the most critical parts in the process of numerical simulation.
References [1] Fudong Gao, Cunyun Pan, Wenshan Cai: Based on propeller open water performance of CFD numerical analysis and verification.
[2] Chao Wang, Sheng Huang, Xueshen Xie: Based on CFD method of the propeller hydrodynamic performance prediction.
Online since: July 2012
Authors: Xi Gang Yuan, Wen Bin Li, Guo Cong Yu, Bo Tan Liu
The simulations are in agreement with the published experiment data.
The conventional model is used for closing the momentum equation in CFD and the model is used for closing the energy conservation equations.
Accompanied CFD Equation Set.
Yu: Computational Mass Transfer Method for Chemical Process Simulation, Chin.
Meisen: Simulation of Pilot Plant and Industrial CO2 MEA Absorbers, Gas Sep.
The conventional model is used for closing the momentum equation in CFD and the model is used for closing the energy conservation equations.
Accompanied CFD Equation Set.
Yu: Computational Mass Transfer Method for Chemical Process Simulation, Chin.
Meisen: Simulation of Pilot Plant and Industrial CO2 MEA Absorbers, Gas Sep.
Online since: October 2011
Authors: Mahdi Hamzehei, Hassan Rahimzadeh, Goodarz Ahmadi
CFD simulation of a fluidized bed reactor was also conducted by Rong et al. [8] focusing on the chemical kinetic aspects and taking into account the intra-particle heat and mass transfers, poly-disperse particle distributions, and multiphase fluid dynamics.
The Syamlal–O’Brien drag expression was used in these simulations.
Values of parameters used in the simulations and experiments.
[4] Grace, J.R., Taghipour, F., Verification and validation of CFD models and dynamic similarity for fluidized beds.
R.O., CFD Simulation of Polydisperse Fluidized-Bed Polymerization Reactors, Department of Chemical Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50010-2230, USA, Preprint submitted to Elsevier Science, August 2003
The Syamlal–O’Brien drag expression was used in these simulations.
Values of parameters used in the simulations and experiments.
[4] Grace, J.R., Taghipour, F., Verification and validation of CFD models and dynamic similarity for fluidized beds.
R.O., CFD Simulation of Polydisperse Fluidized-Bed Polymerization Reactors, Department of Chemical Engineering, Iowa State University, 2114 Sweeney Hall, Ames, IA 50010-2230, USA, Preprint submitted to Elsevier Science, August 2003
Online since: November 2015
Authors: Xiao Hong Zhou, Meng Zhang
The technology of computational fluid dynamics (CFD) was used in this paper.
The average of 3 tests compared with the simulation result is shown in Fig.3.
Then stable experimental data was compared with the simulation value.
Lin, CFD Simulation of Flow and Temperature Fields in Large Space Building, Nanjing University of Aeronautics & Astronautics.(2007) 19-20
He, Research on Airflow and Air Temperature Simulation in the Piggery Based on CFD, Central China Agricultural University.(2009) 26-30
The average of 3 tests compared with the simulation result is shown in Fig.3.
Then stable experimental data was compared with the simulation value.
Lin, CFD Simulation of Flow and Temperature Fields in Large Space Building, Nanjing University of Aeronautics & Astronautics.(2007) 19-20
He, Research on Airflow and Air Temperature Simulation in the Piggery Based on CFD, Central China Agricultural University.(2009) 26-30
Online since: September 2013
Authors: Xing Jun Hu, Yun Yun Zhu
Low-wind-drag numerical research on fenders and wheels of car model
Xingjun Hu 1, a, Yunyun Zhu 1,b
1State Key Lab of Automobile Simulation and Control, Jilin University, Changchun 130022,China
ahxj@jlu.edu.cn, baazhuyunyun@163.com
Keywords: low-wind-drag, Automotive Aerodynamics, fenders and wheels, CFD
Abstract.
The aerodynamic characteristics and the flow field structure of the passenger car model were obtained with CFD, then the affect of the fenders and the wheels to the aerodynamic resistance were analyzed.
Therefore, reducing the aerodynamic drag of vehicle when driving plays a significant role in energy saving, emission reducing and environment protecting[2].With the development of computer technology and CFD, increasing numerical simulations of external flow of vehicles have been applied to automotive low-wind resistance , the concept of which has been put forward widely.
Numerical Simulation CAD model.
The widely proven SST k-omega model was used in this paper to solve the simulation processes in combination with the automatic near-wall treatment developed for the k-omega based model.
The aerodynamic characteristics and the flow field structure of the passenger car model were obtained with CFD, then the affect of the fenders and the wheels to the aerodynamic resistance were analyzed.
Therefore, reducing the aerodynamic drag of vehicle when driving plays a significant role in energy saving, emission reducing and environment protecting[2].With the development of computer technology and CFD, increasing numerical simulations of external flow of vehicles have been applied to automotive low-wind resistance , the concept of which has been put forward widely.
Numerical Simulation CAD model.
The widely proven SST k-omega model was used in this paper to solve the simulation processes in combination with the automatic near-wall treatment developed for the k-omega based model.
Online since: November 2014
Authors: M. Fadhil, M.S. Aris, A.H. Abbas, A.B.A. Ibrahim, N. Aniza
It was shown that the CFD simulations managed to predict the hydrodynamic behavior of gas and solid fluidized bed reasonably well.
They concluded that CFD models appear to have potential for design and development work of the fluidized bed combustor and provided further development on the currently implemented CFD model is carried out.
Simulation parameters Table 2.
Liu, “CFD simulation of hydrodynamic characteristics in a multiple-spouted bed,” Chemical Engineering Science, vol. 80, 2012, pp. 365–379
[12] Mahdi Hamzehei, “CFD Modeling and Simulation of Hydrodynamics in a Fluidized Bed Dryer with Experimental Validation,” International Scholar Research Network ISRN Mechanical Engineering, 2011, Article 1D 131087
They concluded that CFD models appear to have potential for design and development work of the fluidized bed combustor and provided further development on the currently implemented CFD model is carried out.
Simulation parameters Table 2.
Liu, “CFD simulation of hydrodynamic characteristics in a multiple-spouted bed,” Chemical Engineering Science, vol. 80, 2012, pp. 365–379
[12] Mahdi Hamzehei, “CFD Modeling and Simulation of Hydrodynamics in a Fluidized Bed Dryer with Experimental Validation,” International Scholar Research Network ISRN Mechanical Engineering, 2011, Article 1D 131087
Online since: December 2012
Authors: Ming Fang Lu, Jing Huang, Jun Zhang, Hong Zhou He, Xiao Liu
Numerical Simulation and Improved Design of Inner Flow Field on Single Function Shower
Jing Huang1, a, Jun Zhang2, b, Hongzhou He3, c, Mingfang Lu4, d, Xiao Liu5, e
1,2,3 Cleaning Combustion and Energy Utilization Research Center of Fujian Province, College of Mechanical Engineering, Jimei University, 361021, China
4Department of Mechanical Engineering, Chienkuo Technology University, 500, Taiwan
5Marine Engineering Institute, Jimei University, 361021, China
agostarts@126.com, bbull0202@sina.com, chhe99@jmu.edu.cn, dlumf@ctu.edu.tw, eliuxiaoyingbo@126.com
Keywords: Fluent, Shower, CFD, Inner Flow Field, Numerical Simulation
Abstract.
Results and Analysis Numerical simulation of internal flow in shower 1#.
CFD soft--- FLUENT [4] is employed to simulate inner flow characteristics.
Shower1# simulation results indicate that the velocity of outlet have a great fluctuation.
[5] Fujun Wang: Computational Fluid Dynamics Analysis---the CFD Software Principle and Application(Tsinghua University Press, China 2005).
Results and Analysis Numerical simulation of internal flow in shower 1#.
CFD soft--- FLUENT [4] is employed to simulate inner flow characteristics.
Shower1# simulation results indicate that the velocity of outlet have a great fluctuation.
[5] Fujun Wang: Computational Fluid Dynamics Analysis---the CFD Software Principle and Application(Tsinghua University Press, China 2005).
Online since: August 2015
Authors: Hasril Hasini, Nur Irmawati Om, Norhaslina Mat Zian
While, in the study of numerical simulation of biomass derived syngas combustion in a swirl flame combustor, the analysis showed that the possibility to employ appropriate combustion models and simplified or detailed chemical schemes.
The simulation includes global reaction mechanism, assuming that complete conversion of the fuel to CO2 and H2O and other minor species.
Using species transport model, the steady turbulent flow equation are solved according to the generalized continuity, energy and momentum equation in CFD.
Peretto, “Numerical Simulation of Biomass Derived Syngas Combustion in a Swirl Flame Combustor”, Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air, vol. 1, pp. 571-582, Glasgow, UK, June, 2010
Shuaib, and A.F.W.A Wan, “CFD Analysis of Temperature Distribution in Can Type Combustor Firing Synthetic Gas”, Applied Mechanics and Materials, Vol. 393 (2013), pp 741-746, 2013.
The simulation includes global reaction mechanism, assuming that complete conversion of the fuel to CO2 and H2O and other minor species.
Using species transport model, the steady turbulent flow equation are solved according to the generalized continuity, energy and momentum equation in CFD.
Peretto, “Numerical Simulation of Biomass Derived Syngas Combustion in a Swirl Flame Combustor”, Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air, vol. 1, pp. 571-582, Glasgow, UK, June, 2010
Shuaib, and A.F.W.A Wan, “CFD Analysis of Temperature Distribution in Can Type Combustor Firing Synthetic Gas”, Applied Mechanics and Materials, Vol. 393 (2013), pp 741-746, 2013.