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Online since: January 2015
Authors: Ji Yong Liu, Qing Wen Kong, Da Ming Sun
A S60 CB=0.6 ship model is taken as an example to the numerical simulation.
Unsteady RANS simulation of a surface combatant with roll motion[J].
CFD simulation of 3-dimensional motion of a ship in waves: application to an advancing ship in heading waves[J].
CFD calculation for resistance of a ship moving near the critical speed in shallow water[J].
Numerical simulation of free ship model towed in still water[J].
Unsteady RANS simulation of a surface combatant with roll motion[J].
CFD simulation of 3-dimensional motion of a ship in waves: application to an advancing ship in heading waves[J].
CFD calculation for resistance of a ship moving near the critical speed in shallow water[J].
Numerical simulation of free ship model towed in still water[J].
Online since: July 2014
Authors: Yuan Zheng, Meng Tian Lu, Chun Xia Yang, Xiao Qing Tian, Yu Quan Zhang
The CFD theory[2]~[3] was used to conduct the research of flow computation.
Numerical Simulation Method 1.1 Governing Equation The flow is 3-d incompressible and viscous fluid.
Different styles of turbine’s flow passages were calculated by 3-d numerical simulation software.
Then CFD theory was used for computation in the unit optimized process.
CFD simulation of sand-water two-phase inner flow field of volute, Journal of Drainage and Irrigation Machinery Engineering,2007,pp61~64
Numerical Simulation Method 1.1 Governing Equation The flow is 3-d incompressible and viscous fluid.
Different styles of turbine’s flow passages were calculated by 3-d numerical simulation software.
Then CFD theory was used for computation in the unit optimized process.
CFD simulation of sand-water two-phase inner flow field of volute, Journal of Drainage and Irrigation Machinery Engineering,2007,pp61~64
Online since: June 2009
Authors: An Shik Yang, Jing Chuen Lin, Li Yu Tseng
The predictions by the computational fluid dynamics (CFD) code
ACE+
®
were compared with measured transient phase-averaged velocities of Rumsey et al. for
software validation.
For a synthetic jet under the crossflow condition, the transient velocities measured near a circular orifice were obtained specifically for CFD code validation [6].
For prediction of such complicated flow problems, a computational fluid dynamics based computer code can be very useful as a simulation tool to optimize the control parameters.
In this research, simulations using CFD code ACE+® were performed to investigate the flowfield structure induced by the interaction of a single synthetic jet with a crossflow.
Conclusions In this study, the flow simulations using the k-ε model were generally more accurate than those by the RNG k-ε model in determining the temporary velocity profiles.
For a synthetic jet under the crossflow condition, the transient velocities measured near a circular orifice were obtained specifically for CFD code validation [6].
For prediction of such complicated flow problems, a computational fluid dynamics based computer code can be very useful as a simulation tool to optimize the control parameters.
In this research, simulations using CFD code ACE+® were performed to investigate the flowfield structure induced by the interaction of a single synthetic jet with a crossflow.
Conclusions In this study, the flow simulations using the k-ε model were generally more accurate than those by the RNG k-ε model in determining the temporary velocity profiles.
Online since: July 2014
Authors: Amir Khalid, Bukhari Manshoor, Azwan Sapit, Izzuddin Bin Zaman
The simulations work were carried out by using a commercial package of Computational Fluid Dynamic (CFD), ANSYS CFX 14.0 software.
The first objective is to explore the possibilities Computational Fluid Dynamics (CFD) offers in the analysis of mixing induced by circle grid fractal plate elements.
The simulation of mixing fluid will be simulated by using CFD software package ANSYS CFX 14.0.
As mentioned, the simulation were conducted with Re of 100, 200 and 400.
Jaworski and P.Pianko-Oprych: Two-Phase Laminar Flow Simulations in a Kenics Static Mixer.
The first objective is to explore the possibilities Computational Fluid Dynamics (CFD) offers in the analysis of mixing induced by circle grid fractal plate elements.
The simulation of mixing fluid will be simulated by using CFD software package ANSYS CFX 14.0.
As mentioned, the simulation were conducted with Re of 100, 200 and 400.
Jaworski and P.Pianko-Oprych: Two-Phase Laminar Flow Simulations in a Kenics Static Mixer.
Online since: January 2014
Authors: Serik Tokbolat, Sarim Al-Zubaidy
Often this is done virtually by applying simulations.
CAD model for CFD analysis.
In order to study the effects of the building’s facade redesign on its wind environment the state-of-the-art tool which allows combining quick building modeling with advanced computational fluid dynamic (CFD) simulation has been employed.
Applied CFD interface has been designed to run the simulations with simplified settings where geometry and boundary conditions are upper-set.
Grid independence analysis has been fulfilled by comparison of the CFD simulation results of two different grid spacing values – 2 (for the rest of the calculations) and 3 meters.
CAD model for CFD analysis.
In order to study the effects of the building’s facade redesign on its wind environment the state-of-the-art tool which allows combining quick building modeling with advanced computational fluid dynamic (CFD) simulation has been employed.
Applied CFD interface has been designed to run the simulations with simplified settings where geometry and boundary conditions are upper-set.
Grid independence analysis has been fulfilled by comparison of the CFD simulation results of two different grid spacing values – 2 (for the rest of the calculations) and 3 meters.
Online since: October 2009
Authors: Xiao Wang, Run Yuan, Bo Yang, Hong Yan Ruan
It is obvious that the results of CFD
numerical analysis are consistent with the shadowgraph.
At the design stage, the properties and cutting performance of flow fields of gas jets from the nozzle should be analyzed through the computer simulation, so as to further optimize the design.
The experimental results are compared and prove to be in conformity with the simulation.
As can be seen from Fig. 3, it makes a good consistency that CFD calculation results contrast with the experimental methods shadowgraph results.
Experiments show that the gas jet properties calculated by CFD are very much in line with the actual situation, so it had very high credibility.
At the design stage, the properties and cutting performance of flow fields of gas jets from the nozzle should be analyzed through the computer simulation, so as to further optimize the design.
The experimental results are compared and prove to be in conformity with the simulation.
As can be seen from Fig. 3, it makes a good consistency that CFD calculation results contrast with the experimental methods shadowgraph results.
Experiments show that the gas jet properties calculated by CFD are very much in line with the actual situation, so it had very high credibility.
Research Progress of Workability Theoretical Research and Simulation Computation of Pumping Concrete
Online since: January 2009
Authors: Yi Bo Yang, Hong Cao, Ling Zhen Ba, Jun Sheng Chen, Hai Hong Mo, Song Liang, Ting Jin Liu
Research progress about experimental method and simulation computation of workability of
pumping concrete are presented, which would provide research thinking and research method for
combining simulation computation and experimental method.
This method bases on computational fluid dynamics (CFD), which combines Bingham constitutive model; (2) discrete particle flow method.
Fig.4 shows simulation results of slump test through VSEM[5].
Many commercial CFD softwares support this method.
Research of pumping concrete and small scale simulation computation Conclusions This paper introduces research progress of workability theoretical research and simulation computation of pumping concrete.
This method bases on computational fluid dynamics (CFD), which combines Bingham constitutive model; (2) discrete particle flow method.
Fig.4 shows simulation results of slump test through VSEM[5].
Many commercial CFD softwares support this method.
Research of pumping concrete and small scale simulation computation Conclusions This paper introduces research progress of workability theoretical research and simulation computation of pumping concrete.
Online since: September 2015
Authors: Mohammed Aounallah, Fethi Saidi, Mustapha Belkadi, Lahouari Adjlout, Omar Imine
In the last decades, the flow in T-junctions becomes a challenging test case for Computational Fluid Dynamics (CFD).
As the conclusion, the numerical simulation analysis is validated as a promising tool for design.
Veber, Experiments and Unsteady CFD-calculations of the Thermal mixing in a T-Junction, Workshop on Benchmarking of CFD Codes for Application to Nuclear Reactor Safety (CFD4NRS ), IAEA & GRS Garching, Munich, 2006
Fuchs, Turbulent flow mechanisms in mixing T-junctions by Large Eddy Simulations, I.
Angele, A CFD benchmarking exercise based on flow mixing in a T-junction, Nuclear Engineering and Design 264 (2013) 80– 88
As the conclusion, the numerical simulation analysis is validated as a promising tool for design.
Veber, Experiments and Unsteady CFD-calculations of the Thermal mixing in a T-Junction, Workshop on Benchmarking of CFD Codes for Application to Nuclear Reactor Safety (CFD4NRS ), IAEA & GRS Garching, Munich, 2006
Fuchs, Turbulent flow mechanisms in mixing T-junctions by Large Eddy Simulations, I.
Angele, A CFD benchmarking exercise based on flow mixing in a T-junction, Nuclear Engineering and Design 264 (2013) 80– 88
Online since: August 2014
Authors: P.G. Diem, P.H. Anh, N.P. Hung, N.V. Hien, Phu Khanh Nguyen
An example of the CFD simulation results on the pressure and velocity distributions of a propeller is shown in Fig. 3.
Implementation Model of Trajectory-Tracking Controller for a Quadrotor UAV Implementing the Simulation Model.
This model is based on the CFD simulation, the specialization of HA’s features and microcontrollers in order to accurately analyze, design, implement and realize the control parts of system.
[15] OpenModelica, Simulation software, https://www.openmodelica.org/ (2012)
[16] Fritzson P., Introduction to Modeling and Simulation of Technical and Physical Systems with Modelica, John Wiley & Sons (2011)
Implementation Model of Trajectory-Tracking Controller for a Quadrotor UAV Implementing the Simulation Model.
This model is based on the CFD simulation, the specialization of HA’s features and microcontrollers in order to accurately analyze, design, implement and realize the control parts of system.
[15] OpenModelica, Simulation software, https://www.openmodelica.org/ (2012)
[16] Fritzson P., Introduction to Modeling and Simulation of Technical and Physical Systems with Modelica, John Wiley & Sons (2011)
Online since: April 2014
Authors: Xiu Zhang Fu, Jian Dong
The indoor airflow simulation was carried out by using the CFD software. 3 states of interior doors were set, and 60 regions were arrayed in bedroom to observe the variation of airflows.
Model Following the experimental study, a three-dimensional CFD simulation was carried out.
The CFD simulation was performed by commercial CFD software, with a LVEL turbulence model.
Fig.1 Plane of residence Fig.2 Contour of ambient flow pattern Simulation results 3D simulation with turbulence model was carried out to investigate the real operating of the natural ventilation system.
Therefore, 60 regions’ data are extracted after simulation, thus having a further analysis of data.
Model Following the experimental study, a three-dimensional CFD simulation was carried out.
The CFD simulation was performed by commercial CFD software, with a LVEL turbulence model.
Fig.1 Plane of residence Fig.2 Contour of ambient flow pattern Simulation results 3D simulation with turbulence model was carried out to investigate the real operating of the natural ventilation system.
Therefore, 60 regions’ data are extracted after simulation, thus having a further analysis of data.