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Online since: November 2012
Authors: Jun Lin Xie, Shu Xia Mei, Feng He, Ming Fang Jin
To reduce energy consumption, numerical simulations of combustion and decomposition processes in a precalciner were carried out with two types of locations of jetting coal pipes.
Today the CFD method[3–6] has been used widely in precalciner design and optimization.
In this paper, the processes of combustion and decomposition in a precalciner with two types of locations of jetting coal pipes were studied by numerical simulation.
Numerical simulation study on gas-particles two-phase flow in pre-calciner [J].
Numerical simulation of gas-solid flow in slc-s precalciner by adding a raw meal inlet [J].J Chin Ceram Soc, 2007, 35(10): 1382-1386
Today the CFD method[3–6] has been used widely in precalciner design and optimization.
In this paper, the processes of combustion and decomposition in a precalciner with two types of locations of jetting coal pipes were studied by numerical simulation.
Numerical simulation study on gas-particles two-phase flow in pre-calciner [J].
Numerical simulation of gas-solid flow in slc-s precalciner by adding a raw meal inlet [J].J Chin Ceram Soc, 2007, 35(10): 1382-1386
Online since: August 2011
Authors: Ning Xu, Yue Xu
The Simulation and Comparative Analysis of the Different Structure of Cyclone Separator, and the Construction of Optimal Experimental Model
Ning Xu1,a , Yue Xu2,b
1.
During trajectory simulation, the coal dust was set as particles and the computed fields were segmented and grid meshed, and computed using pressure base solver.
The simulation of dynamic pressure and static pressure in the optiaml cyclone separator were shown in Fig.6.
After stimulation of the internal pressure convective cloud, the XY curve was drawed using CFD software.
Simulation of mass-loading effects in gas-solid cyclone separators.
During trajectory simulation, the coal dust was set as particles and the computed fields were segmented and grid meshed, and computed using pressure base solver.
The simulation of dynamic pressure and static pressure in the optiaml cyclone separator were shown in Fig.6.
After stimulation of the internal pressure convective cloud, the XY curve was drawed using CFD software.
Simulation of mass-loading effects in gas-solid cyclone separators.
Online since: August 2013
Authors: Na Wang
Simulation program
Simulation of planning layout.
Simulation analysis Building height.
Buildings wind environment numerical simulation and optimization design .
Green building planning design case analysis based on the simulation technology.
A study of the effeetiveness of meehanieal ventilation systems of ahawkere enierin Singapore using CFD simulations.
Simulation analysis Building height.
Buildings wind environment numerical simulation and optimization design .
Green building planning design case analysis based on the simulation technology.
A study of the effeetiveness of meehanieal ventilation systems of ahawkere enierin Singapore using CFD simulations.
Online since: July 2015
Authors: John Kia Yu Teck, Radhiyatul Hikmah binti Abu, Siti Ujila binti Masuri
This paper describes the numerical investigation on the adsorption () of nanoparticles (NPs) scale inhibitor (SI) using Eulerian Computational Fluid Dynamics (CFD) solver ANSYS/FLUENT® based on a scaled down flow model.
The simulation were done to investigate theof normal and nano-scaled Calcium-phosphonate.
This was done by looking at the change in concentration of the SI particles throughout the simulation time.
Meanwhile, Fig. 2 shows the corresponding results when the NPs SI is considered for simulation from = 0 s to = 200 s.
Computational Fluid Dynamics Simulation of Transport and Retention of Nanoparticle in Saturated Sand Filters.
The simulation were done to investigate theof normal and nano-scaled Calcium-phosphonate.
This was done by looking at the change in concentration of the SI particles throughout the simulation time.
Meanwhile, Fig. 2 shows the corresponding results when the NPs SI is considered for simulation from = 0 s to = 200 s.
Computational Fluid Dynamics Simulation of Transport and Retention of Nanoparticle in Saturated Sand Filters.
Online since: March 2012
Authors: Bao Li Zhu, Hui Pen Wu, Tian Hang Xiao
The simulation result shows that the propulsive efficiency of the dual single flapping has increased 40% in comparison with the single flapping.
For being lack of some experimental data and mature theories, how to optimize the flapping parameter so as to obtain higher propulsive efficiency has become a difficult problem, in order to solve this problem, computational fluid dynamics (CFD) technology can be used.
In the paper, a numerical algorithm for unsteady flow field of low velocity with movement boundary is presented firstly, then the algorithm is validated by simulation using some examples, finally the unsteady viscous flow fields of dual flapping airfoils in tandem configurations are simulated by a Navier-Stokes Solver based on dynamic deformable hybrid meshes.
Due to 3D CFD solver is used here, the 2D grid must be extended to 3D grid along airfoil span.
For being lack of some experimental data and mature theories, how to optimize the flapping parameter so as to obtain higher propulsive efficiency has become a difficult problem, in order to solve this problem, computational fluid dynamics (CFD) technology can be used.
In the paper, a numerical algorithm for unsteady flow field of low velocity with movement boundary is presented firstly, then the algorithm is validated by simulation using some examples, finally the unsteady viscous flow fields of dual flapping airfoils in tandem configurations are simulated by a Navier-Stokes Solver based on dynamic deformable hybrid meshes.
Due to 3D CFD solver is used here, the 2D grid must be extended to 3D grid along airfoil span.
Online since: June 2014
Authors: Yuan Yu, Yi Hu Cui, Jun Cheng Jiang, Qing Wu Zhang
Some authors[1,7] established and developed CFD model to model gas explosions in linked vessels, aiming at investigating the effect of the ignition position, the pipe diameter and the volume on linked vessel explosion.
CFD simulation of pressure piling.
Numerical simulation of gas explosions in linked vessels.
CFD simulation of pressure piling.
Numerical simulation of gas explosions in linked vessels.
Online since: September 2011
Authors: Wei Zhong, Jian Peng Yang, Bao An Pei, Jian Jun Niu
Large Eddy Simulation model (LES) was used to assess the effect of mechanical smoke exhausting under the different ventilation modes.
The character of smoke flow in different smoke extraction strategies are studies in this paper by Large Eddy Simulation model, and the suitable strategy is put forward based on the simulation. 2.
Numerical simulation method and Fire scenario design This paper selects the numerical simulation tool FDS5.0 (Fire Dynamics Simulator) developed by NIST, which is a Computational Fluid Dynamics (CFD) simulation model of fire-driven flow[5].
Stair exhaust pipe Escalator Ceiling Screen Fig.1 The sketch map of platform The platform is divided into two calculation areas named platform area and fire area, grid in both areas are cube, the platform area size is 1/8m, and the fire area size is 1/16m. the simulation cases is listed in table 1.
The simulation results shows that the smoke layer’s height maintains over 2m at 400s, the smoke control effect is better than other smoke extraction strategies.
The character of smoke flow in different smoke extraction strategies are studies in this paper by Large Eddy Simulation model, and the suitable strategy is put forward based on the simulation. 2.
Numerical simulation method and Fire scenario design This paper selects the numerical simulation tool FDS5.0 (Fire Dynamics Simulator) developed by NIST, which is a Computational Fluid Dynamics (CFD) simulation model of fire-driven flow[5].
Stair exhaust pipe Escalator Ceiling Screen Fig.1 The sketch map of platform The platform is divided into two calculation areas named platform area and fire area, grid in both areas are cube, the platform area size is 1/8m, and the fire area size is 1/16m. the simulation cases is listed in table 1.
The simulation results shows that the smoke layer’s height maintains over 2m at 400s, the smoke control effect is better than other smoke extraction strategies.
Online since: November 2013
Authors: Tao Sun, Ming Hui Yuan, Wei Wang, Nan Ye
Study of wave added resistance on Wigley ship
Tao Sun1,a, Minghui Yuan2,b, Wei Wang3,c, Nan Ye4,d
1,2,4College of Power and Energy Engineering, Harbin Engineering University, Harbin, China
3703th Research Institute of China Shipbuilding Industry Corporation, Harbin, China
aheu_jf@163.com, b617871483@qq.com, ccsic703ww@163.com, dghostyenan@163.com
Keywords:. wave added resistance, Wigley, numerical simulation ,resistance in head wave, trim and heave
Abstract.
At present, studying ship wave added resistance by numerical simulation just starts, this paper was carried out in this background.
Summary and Conclusions The most useful purpose served by the study is the use of numerical simulation to solve ship resistance issue.
The viscous flow of both restrained and free body are simulated by CFD method .The resistance in calm water and head waves of two models are computed here, especially , different wavelengths and amplitudes are considered.
At present, studying ship wave added resistance by numerical simulation just starts, this paper was carried out in this background.
Summary and Conclusions The most useful purpose served by the study is the use of numerical simulation to solve ship resistance issue.
The viscous flow of both restrained and free body are simulated by CFD method .The resistance in calm water and head waves of two models are computed here, especially , different wavelengths and amplitudes are considered.
Online since: August 2015
Authors: Piotr Kula, Konrad Dybowski, Sebastian Lipa, Emilia Wołowiec Korecka, Jacek Sawicki
The proposed flowchart did not include the flow effect, which greatly reduced the computation time by eliminating tedious CFD calculations.
All this served the purpose of developing a tool for simulation of inductive quenching.
A carburized layer was proposed in the simulations, defined by 10 sub-layers with the depth of 0.2 mm.
In conclusion, it can be said that the simulations and experiments have shown that the computational algorithm used in the study provides results of simulation similar to the experimental findings.
Arimoto et al., Development of heat treatment simulation system DEFORMTM-HT, in: R.A.
All this served the purpose of developing a tool for simulation of inductive quenching.
A carburized layer was proposed in the simulations, defined by 10 sub-layers with the depth of 0.2 mm.
In conclusion, it can be said that the simulations and experiments have shown that the computational algorithm used in the study provides results of simulation similar to the experimental findings.
Arimoto et al., Development of heat treatment simulation system DEFORMTM-HT, in: R.A.
Online since: January 2014
Authors: Zhi Xiang Sun, Yan Kong, Li Tan, Wen Yan Li
Simulation result was shown in Fig.4.
In order to verify the accuracy of the simulation results, the comparison of simulation results with experimental data of periodical was made[6].
Simulation result was shown in Fig.5.
Simulation result was shown in Fig.6.
[4] Nguyen T D B, Lim Y, Kim S, et al.Experiment and computational fluid dynamics (CFD)simulation of urea-based selective non-catalytic reduction (SNCR) in a pilot-scale flow reactor[J].Energy & Fuels, 2008, 22(6) : 3864-3876
In order to verify the accuracy of the simulation results, the comparison of simulation results with experimental data of periodical was made[6].
Simulation result was shown in Fig.5.
Simulation result was shown in Fig.6.
[4] Nguyen T D B, Lim Y, Kim S, et al.Experiment and computational fluid dynamics (CFD)simulation of urea-based selective non-catalytic reduction (SNCR) in a pilot-scale flow reactor[J].Energy & Fuels, 2008, 22(6) : 3864-3876