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Online since: July 2016
Authors: Maziar Gholami Korzani, Alexander Scheuermann, David J. Williams, S. Galindo Torres
The study concerns the application of the Smoothed Particle Hydrodynamics (SPH) method within the computational fluid dynamics (CFD).
Furthermore, numerical hydrodynamic simulations performed by FDMs have been commonly carried out in 2D though many phenomena are usually occurring in 3D.
Fig. 2.b shows a comparison between the SPH simulation and the analytical solution for velocity profile at various time steps.
The simulations were carried out using the Macondo Cluster from the School of Civil Engineering at the University of Queensland.
Sekiya, "Numerical simulation of viscous flow by smoothed particle hydrodynamics," Progress of Theoretical Physics, vol. 92, pp. 939-960, 1994
Furthermore, numerical hydrodynamic simulations performed by FDMs have been commonly carried out in 2D though many phenomena are usually occurring in 3D.
Fig. 2.b shows a comparison between the SPH simulation and the analytical solution for velocity profile at various time steps.
The simulations were carried out using the Macondo Cluster from the School of Civil Engineering at the University of Queensland.
Sekiya, "Numerical simulation of viscous flow by smoothed particle hydrodynamics," Progress of Theoretical Physics, vol. 92, pp. 939-960, 1994
Online since: June 2015
Authors: Kamila Kotrasova, Eva Kormanikova
Having the two models coupled, we can perform simulations and predictions of many physical phenomena.
Two way Fluid-Structure Interaction (FSI) techniques were used for simulation of the interaction between the structure and the fluid at the common boundary.
Krejsa, Software application of the DOProC method In: International Journal of Mathematics and Computers in Simulation Vol. 8, No. 1 (2014), pp. 121-126 ISSN: 1998-0159
Kozubkova, CFD simulations of the effect of wind on the spontaneous heating of coal stockpiles.
Grajciar, Simulation of the aquaplane problem.
Two way Fluid-Structure Interaction (FSI) techniques were used for simulation of the interaction between the structure and the fluid at the common boundary.
Krejsa, Software application of the DOProC method In: International Journal of Mathematics and Computers in Simulation Vol. 8, No. 1 (2014), pp. 121-126 ISSN: 1998-0159
Kozubkova, CFD simulations of the effect of wind on the spontaneous heating of coal stockpiles.
Grajciar, Simulation of the aquaplane problem.
Online since: December 2013
Authors: Qing Zhen Yang, Jian Nan He, Xiang Gao, Hong Zhou
So the method of numerical simulation has become more and more popular[4,5]. there are fewer researches on the numerical simulation of the infrared radiation characteristics for the turbo-fan engine with S-shaped nozzle.
The flow field of them at non-afterburning condition is calculated with the CFD software A code base on the Reverse Monte-Carlo method is developed with C++, which is used to calculate the infrared radiation characteristics of all the nozzles.
Reverse Monte-Carlo method (RMCM) is adopted to calculate the infrared radiation characteristics of the exhaust system, which is a random simulation method[8,9,10].
Backward Monte Carlo Method Simulation in Radiative Heat Transfer [J].
Tan, Simulation of the Infrared Radiation Characteristics of High-temperature Exhaust Plume Including Particles Using the Backward Monte Carlo Method [J].Journal of Quantitative Spectroscopy & Radiative Transfer,2005,95:231-240.
The flow field of them at non-afterburning condition is calculated with the CFD software A code base on the Reverse Monte-Carlo method is developed with C++, which is used to calculate the infrared radiation characteristics of all the nozzles.
Reverse Monte-Carlo method (RMCM) is adopted to calculate the infrared radiation characteristics of the exhaust system, which is a random simulation method[8,9,10].
Backward Monte Carlo Method Simulation in Radiative Heat Transfer [J].
Tan, Simulation of the Infrared Radiation Characteristics of High-temperature Exhaust Plume Including Particles Using the Backward Monte Carlo Method [J].Journal of Quantitative Spectroscopy & Radiative Transfer,2005,95:231-240.
Online since: January 2013
Authors: Sheng Jing Tang, Sheng Yi Yang, Chao Liu, Jie Guo
Even some papers refer to estimate the thrust and the moment with BEMT (blade element theory)[4], and some people try to calculate via CFD, but they still can’t provide accurate thrust and moment when the quad-rotor flying.
White noise is introduced to the simulation loops as disturbance and uncertainties.
In the simulation, the bounder of disturbance and uncertainties is.
Fig. 5 Simulation result of quad-rotor moving to a permanent point From the simulation result, the quad-rotor can reach the desire point quickly and accurately with external disturbance.
Assume a target moving with, the tracking trajectory of the quad-rotor in simulation with disturbance is shown as Fig 6.
White noise is introduced to the simulation loops as disturbance and uncertainties.
In the simulation, the bounder of disturbance and uncertainties is.
Fig. 5 Simulation result of quad-rotor moving to a permanent point From the simulation result, the quad-rotor can reach the desire point quickly and accurately with external disturbance.
Assume a target moving with, the tracking trajectory of the quad-rotor in simulation with disturbance is shown as Fig 6.
Online since: July 2016
Authors: Kan Qin, Ingo Jahn, Peter Jacobs
Coupling Algorithm
These two individual solvers have to be coupled together for the fluid-structure simulation.
The simulation with Eilmer is paused at ; 3.
Grid in Eilmer is updated and fluid domain simulation continues; 7.
These results can be used as a test case for the fluid-structure simulation.
Validation of a Three-dimensional CFD Analysis of Foil Bearings with Supercritical CO2. in 19th Australasian Fluid Mechanics Conference. 2014.
The simulation with Eilmer is paused at ; 3.
Grid in Eilmer is updated and fluid domain simulation continues; 7.
These results can be used as a test case for the fluid-structure simulation.
Validation of a Three-dimensional CFD Analysis of Foil Bearings with Supercritical CO2. in 19th Australasian Fluid Mechanics Conference. 2014.
Online since: November 2016
Authors: Bin Zhang, Qin He Sun, Wei Tong Liu
Thermal Performance of a Shape-Stabilized Phase Change Material Floor with Different Heating Positions
Bin Zhang a, Qinhe Sun b* and Weitong Liu c
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China
azb-sh@163.com, bsunqinhe@foxmail.com, c398525021@qq.com
Keywords: computational fluid dynamics (CFD); shape–stabilized phase change material (SSPCM); thermal energy storage (TES); thermal performance
Abstract.
Simulation of the SSPCM Floor The floor system(as shown in Fig. 2) includes a 50 mm–thick polystyrene insulation layer, a 40 mm–thick PCM plate layer, a 20 mm–thick marble layer, and capillary tubes with a space of 40 mm.
The entire simulation process is divided into two stages: heat storage and heat release.
Simulation of the SSPCM Floor The floor system(as shown in Fig. 2) includes a 50 mm–thick polystyrene insulation layer, a 40 mm–thick PCM plate layer, a 20 mm–thick marble layer, and capillary tubes with a space of 40 mm.
The entire simulation process is divided into two stages: heat storage and heat release.
Online since: October 2012
Authors: Wei Ping Huang, Jie Li Fan
The Numerical Research of Two-degrees-of-freedom Vortex-induced Vibrations of Circular Cylinders
Jieli Fan1, a, Weiping Huang2,b
1Shandong Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100,China
2Shandong Key Laboratory of Ocean Engineering, Ocean University of China, Qingdao 266100,China
afanjieli1115@126.com, bwphuang@ouc.edu.cn
Keywords: vortex-induced vibration; in-line VIV; cross-flow VIV; CFD
Abstract.
Numerical Simulation In this paper’s numerical simulation, the three-dimensional physical model is used.
Numerical Simulation In this paper’s numerical simulation, the three-dimensional physical model is used.
Online since: April 2016
Authors: Severino Rodrigues de Farias Neto, Antonio Gilson Barbosa de Lima, Cidronia Janiclebia de O. Buriti, Lígia Rafaely Barbosa Sarmento, Gicélia Moreira
Thermofluidodynamic evaluation of oil-water flow in the presence of a leak in curved connection: modeling and simulation
Cidronia Janiclebia de O.
ajaneburiti@yahoo.com.br, b ligiarafaely@gmail.com, cg.moreira@ufcg.edu.br, dfariasn@deq.ufcg.edu.br, eagblima@pq.cnpq.br Keywords: Two-phase flow; Connections; Leak; Numerical simulation; CFX.
In Fig. 2 the numerical mesh is shown with details in the vicinity of the leak hole generated using ICEM CFD v12.1.
The physico-chemical properties of the fluids at 293K used in the simulations are shown in Table 2.
For cases in which there is leakage (where transient flow regime) simulations for a maximum flow time of 0.1 s, the following boundary conditions were used: It was considered that the tube is initially filled with oil and water then the flow is fully developed
ajaneburiti@yahoo.com.br, b ligiarafaely@gmail.com, cg.moreira@ufcg.edu.br, dfariasn@deq.ufcg.edu.br, eagblima@pq.cnpq.br Keywords: Two-phase flow; Connections; Leak; Numerical simulation; CFX.
In Fig. 2 the numerical mesh is shown with details in the vicinity of the leak hole generated using ICEM CFD v12.1.
The physico-chemical properties of the fluids at 293K used in the simulations are shown in Table 2.
For cases in which there is leakage (where transient flow regime) simulations for a maximum flow time of 0.1 s, the following boundary conditions were used: It was considered that the tube is initially filled with oil and water then the flow is fully developed
Online since: July 2008
Authors: Sheng Qiang Yang, Wen Hui Li, Ming Rang Cao, Y.Q. Wang
Numerical Simulation of Liquid-Solid Two-Phase Flow Field
in Discharge Gap of High-Speed Small Hole EDM Drilling
Y.
The flow field characteristics under different pressures and drilling depths were obtained through simulations.
Simulation of Gap Liquid-Solid Two-Phase Flow Field Assumptions.
Numerical simulation result shows a better coherence with the actual tool shapes (Fig. 7); obviously, the validity of numerical simulation is verified.
Wang: Computational Fluid Dynamics Analysis-CFD Software Principles and Applications (Tsinghua University Press, Beijing, 2004.9)
The flow field characteristics under different pressures and drilling depths were obtained through simulations.
Simulation of Gap Liquid-Solid Two-Phase Flow Field Assumptions.
Numerical simulation result shows a better coherence with the actual tool shapes (Fig. 7); obviously, the validity of numerical simulation is verified.
Wang: Computational Fluid Dynamics Analysis-CFD Software Principles and Applications (Tsinghua University Press, Beijing, 2004.9)