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Online since: December 2013
Authors: Wei Guo Pan, Xin Zhao, Yan Wu Gao, Wen Long Zhen, Rui Tang Guo, Chao Lin Shi, Qiang Zhang
Residence time.Patrick Muscat et.al.using CFD platform in cement production line of 5000 t/d ammonia injection and selective catalytic reduction of NOx reduction simulation to researchthe denitration effect different positions, combination with the installation of different injection area,studied the rising flue SNCR device installed in rotary kiln, decomposition furnace wall.
Daniel; CFD-modelling of Selective Non-Catalytic Reduction of NOx in grate-kiln plants[J].
Daniel; CFD-modelling of Selective Non-Catalytic Reduction of NOx in grate-kiln plants[J].
Online since: September 2003
Authors: Roland Madar, Michel Pons, Didier Chaussende, Francis Baillet, Ludovic Charpentier, Etienne Pernot
Modeling and simulation were used to evaluate a new reactor concept for SiC bulk
growth.
Pyrometric measurements Numerical simulation The electromagnetic, flow and temperature fields are analyzed by finite volume methods using CFD-ACE software.
Simulations Results Numerical simulation of the process is used to visualize gas velocity and thermal distribution in the reactor.
The simulation results with and without the gas flow are shown in fig. 2.
These simulations are validated by CVD deposition experiments on the lower part and by boule growth experiments [3,4].
Pyrometric measurements Numerical simulation The electromagnetic, flow and temperature fields are analyzed by finite volume methods using CFD-ACE software.
Simulations Results Numerical simulation of the process is used to visualize gas velocity and thermal distribution in the reactor.
The simulation results with and without the gas flow are shown in fig. 2.
These simulations are validated by CVD deposition experiments on the lower part and by boule growth experiments [3,4].
Online since: January 2015
Authors: Di Lin Pan, Yu Shan Wang
The internal flow of jet fan has been simulated using FLUENT software.By changing the length of exit duct and the angle of the exit cowl,a series of numerical simulation research has been done.The calculation results show that the length of exit duct and structure of exit cowl has obvious influence on jet fan aerodynamics performances and reasonable export structure can effectively improve jet fan aerodynamic performances.
In order to find jet fan outlet structure reasonable parameters and range of options, numerical simulation research has been done by changing the length of exit duct and the angle of the exit cowl.
Fig.3 is the relationship between flow rate Q and L/D, and data Q are export from the numerical simulation results.
Conclusion The internal flow of jet fan has been simulated using CFD technology.
Naser.Simulation of airflow and pollution levels caused by severe traffic jam in a road tunnel[J].Tunnelling and Underground Space Technology,2010 25:70-77 [4] Chen Kai, Pan Di-lin,Internal Flow Field Analysis of Jet Fans and The Influence of Hub Ratio,FENGJIJISHU[J].2013 (1) 15-21 [5] Pan Di-lin,Aerodynamics Performances of Tunnel Jet Fan,Materials Science and Engineering[J].2013 310-314
In order to find jet fan outlet structure reasonable parameters and range of options, numerical simulation research has been done by changing the length of exit duct and the angle of the exit cowl.
Fig.3 is the relationship between flow rate Q and L/D, and data Q are export from the numerical simulation results.
Conclusion The internal flow of jet fan has been simulated using CFD technology.
Naser.Simulation of airflow and pollution levels caused by severe traffic jam in a road tunnel[J].Tunnelling and Underground Space Technology,2010 25:70-77 [4] Chen Kai, Pan Di-lin,Internal Flow Field Analysis of Jet Fans and The Influence of Hub Ratio,FENGJIJISHU[J].2013 (1) 15-21 [5] Pan Di-lin,Aerodynamics Performances of Tunnel Jet Fan,Materials Science and Engineering[J].2013 310-314
Online since: June 2019
Authors: Nicole Motsch, Constantin Bauer, Tim Schmidt, Florian Schimmer, Aaron Widera, David May
A Novel Simulative-Experimental Approach to Determine the Permeability of Technical Textiles
Tim Schmidt1,a*, Florian Schimmer1,b, Aaron Widera2,c, David May1,d ,
Nicole Motsch1,e and Constantin Bauer2,f
1Institut für Verbundwerkstoffe GmbH, Erwin-Schrödinger-Str. 58, 67663 Kaiserslautern, Germany
2Math2Market GmbH, Richard-Wagner-Straße 1, 67655 Kaiserslautern, Germany
atim.schmidt@ivw.uni-kl.de, bflorian.schimmer@ivw.uni-kl.de, caaron.widera@math2market.de, ddavid.may@ivw.uni-kl.de, enicole.motsch@ivw.uni-kl.de and fconstantin.bauer@zf.com
Keywords: simulation, simulative-experimental approach, digital twin, CFD, calibrated simulation
Abstract.
Figure 2: Visualization of the process for the model generation using micro-computer tomography Simulation.
Hydrodynamic compaction does not take place during simulation in FlowDict.
Simulation based on Digital Model and Digital Twin.
Verleye et al., “Permeability of textile reinforcements: Simulation, influence of shear and validation,” Comp.
Figure 2: Visualization of the process for the model generation using micro-computer tomography Simulation.
Hydrodynamic compaction does not take place during simulation in FlowDict.
Simulation based on Digital Model and Digital Twin.
Verleye et al., “Permeability of textile reinforcements: Simulation, influence of shear and validation,” Comp.
Online since: November 2012
Authors: Shun Li Kou, Guo Neng Li
All simulations were conducted based on the general-purpose CFD code FLUENT 13.0®, which adopts a control volume based finite difference method to solve the conservation equations for mass and momentum.
Large eddy simulation method was employed in this work.
In the case of r=30, the simulation under predicted the spread width in the zone of large spread zone of w/d>2.00.
And in the case of r=60, the simulation over predicted the spread width in the zone of large spread zone of w/d>2.00.
Yang, Three-dimensional simulation of square jets in cross-flow, Physical review E, 69 (2004) 066302.1-066302.22
Large eddy simulation method was employed in this work.
In the case of r=30, the simulation under predicted the spread width in the zone of large spread zone of w/d>2.00.
And in the case of r=60, the simulation over predicted the spread width in the zone of large spread zone of w/d>2.00.
Yang, Three-dimensional simulation of square jets in cross-flow, Physical review E, 69 (2004) 066302.1-066302.22
Online since: October 2011
Authors: Bao Liang Li, Zang Lei, Heng Feng Zhang
The water pressure distribution of the blade surface of the impeller is obtained, which is more accurately than previous calculations [1], by the interior flow field CFD analysis on the high-pressure small-flow centrifugal pump, and the water pressure in the interfaces is transferred into the corresponding surfaces of the structure field by the One-way Fluid-structure Interaction technique.
The mesh quality is one of the key factors in the CFD calculation, which affects directly the accuracy of numerical calculation, and even the success or failure of computing problems[3].
Simulation results show that: under the water stress, the maximum deformation occurs on the brink of the blade, the maximum equivalent stress occurs at the liner near the blade pressure surface
The mesh quality is one of the key factors in the CFD calculation, which affects directly the accuracy of numerical calculation, and even the success or failure of computing problems[3].
Simulation results show that: under the water stress, the maximum deformation occurs on the brink of the blade, the maximum equivalent stress occurs at the liner near the blade pressure surface
Online since: September 2015
Authors: Khalil Khanafer, M. El Haj Assad
Table 1deomstrates an excellent comparison of the average Nusselt number at the walls of the lid-driven cavity with two cylinders located along the horizontal centerline between the present results and that of Nek5000 CFD solver (Open-source solver; Argonne National Laboratory).
Comparison of the average Nusselt number at the walls of the lid-driven cavity with two cylinders located along the horizontal centerline between the present results and that of Nek5000 CFD solver (Re = 100, Pr = 0.7, ro/H = 0.2) Isothermal Hot Cylinder- Adiabatic Cylinder Ri Present* Nek5000+ %Relative Error 0.01 10.1 9.79 3.1 1 10.3 9.81 4.8 10 11.15 10.72 3.9 Results and Discussion Figure 2 shows the effect of the presence of the circular cylinders in the lid-driven cavity for various Richardson numbers and different thermal boundary conditions of the cylinders.
The Re number, Pr and ro/H were kept constant at 100, 0.7 and 0.2, respectively for these simulations.
Comparison of the average Nusselt number at the walls of the lid-driven cavity with two cylinders located along the horizontal centerline between the present results and that of Nek5000 CFD solver (Re = 100, Pr = 0.7, ro/H = 0.2) Isothermal Hot Cylinder- Adiabatic Cylinder Ri Present* Nek5000+ %Relative Error 0.01 10.1 9.79 3.1 1 10.3 9.81 4.8 10 11.15 10.72 3.9 Results and Discussion Figure 2 shows the effect of the presence of the circular cylinders in the lid-driven cavity for various Richardson numbers and different thermal boundary conditions of the cylinders.
The Re number, Pr and ro/H were kept constant at 100, 0.7 and 0.2, respectively for these simulations.
Online since: March 2015
Authors: H.P. Hu, S.M. Wang, K. Tian
By the Theory of Wind Turbine Design [6-7] and the CFD, X-foil numerical simulation analysis, the horizontal turbine was optimized, and its final basic structural parameters were listed in Table 1.
The Darrieus wind turbine: Proposal for a new performance prediction model based on CFD[J].
The Darrieus wind turbine: Proposal for a new performance prediction model based on CFD[J].
Online since: November 2012
Authors: Hui Chen, Qi Liu
CFD Modeling
Based on the columnar gap flow of immersion liquid, the three-dimensional computational fluid dynamics (CFD) model is established to predict the liquid renovation and normal stress on lens for wafer scanning, shown in Fig. 2.
Then the simulation is conducted by the software Fluent 6.3 with three-dimensional, pressure-based, steady flow and standard k-ε model, and the key parameters used in the models are listed in Table 1 Table 1.
Then the simulation is conducted by the software Fluent 6.3 with three-dimensional, pressure-based, steady flow and standard k-ε model, and the key parameters used in the models are listed in Table 1 Table 1.
Online since: August 2015
Authors: V. Sivakumar, E. Ganapathy Sundaram, B. Sakthikiran, T. Sanjay Krishnan, A. Riyaz Hussain
Rahbar and Esfahani [7] applied 2-D CFD (Computational Fluid Dynamics) simulation in estimating the hourly yield of a single-slope solar still and found that the CFD analysis is used to identify the Nusselt number.
A time step of 60 seconds is used in the simulation.
A time step of 60 seconds is used in the simulation.