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Online since: December 2013
Authors: Tao Ping Chen, Ying Jie Wang, Hong Qiang Sun
The results agree with the results of ANSYS heat flow field simulation.
Research shows that using heat flow field module of ANSYS simulation seepage field to serve research seepage field of well is a kind of general method.
Fig.1 Geometric model of perforation completion Fig.2 Finite element mesh modelof perforation completion This paper uses ANSYS's CFD of coordinating subdivision algorithm and independent subdivision algorithm to divide the mesh.
Fig.11 Electric Simulation Experiment Devic Fig.12 Measured and Theoretical Pressure Distribution Curve The contrast curve of pressures between the numerical simulation and the electrical analog along the direction of the perforation is shown in Fig.14.It can be seen from the Fig.14 that the pressure curve of the electrical analog changes largely at 1~1.2d and leveled off after 1.2d,which is coincident with the temperature field in ANSYS simulating the change law of the pressure field in Fig.14.Thus proves the accuracy of finite element simulation in ANSYS .
(5) The results of electrical analog and the numerical simulation of ANSYS show that using the thermal module of ANSYS to simulate the seepage field can be used as a generic method to study the seepage problems near the bottom of oil and gas wells.
Research shows that using heat flow field module of ANSYS simulation seepage field to serve research seepage field of well is a kind of general method.
Fig.1 Geometric model of perforation completion Fig.2 Finite element mesh modelof perforation completion This paper uses ANSYS's CFD of coordinating subdivision algorithm and independent subdivision algorithm to divide the mesh.
Fig.11 Electric Simulation Experiment Devic Fig.12 Measured and Theoretical Pressure Distribution Curve The contrast curve of pressures between the numerical simulation and the electrical analog along the direction of the perforation is shown in Fig.14.It can be seen from the Fig.14 that the pressure curve of the electrical analog changes largely at 1~1.2d and leveled off after 1.2d,which is coincident with the temperature field in ANSYS simulating the change law of the pressure field in Fig.14.Thus proves the accuracy of finite element simulation in ANSYS .
(5) The results of electrical analog and the numerical simulation of ANSYS show that using the thermal module of ANSYS to simulate the seepage field can be used as a generic method to study the seepage problems near the bottom of oil and gas wells.
Online since: October 2013
Authors: Jin Liang Xu, Lu Xiang Zong
Simulation results show that the introduction of seed bubbles improves the heat transfer performance and suppresses the flow instability simultaneously.
Numerical simulations of bubble growth rate coupled with heat transfer rate was observed to increased significantly by W.
A numerical simulation was performed to analyze the wall heat transfer mechanisms during growth of a vapor bubble inside a microchannel by A.
Figure 2 A section of the computational mesh used in the CFD simulations Figure 3 Comparison of the present work with experiment results [1] Results and discussion Figure 3 shows a comparison of the experimental results obtained by Xu et al. [1] with the simulations.
As can be seen from Fig. 3, the simulation result shows a shift to wall temperature no more than 3 K as compared to the experiment data.
Numerical simulations of bubble growth rate coupled with heat transfer rate was observed to increased significantly by W.
A numerical simulation was performed to analyze the wall heat transfer mechanisms during growth of a vapor bubble inside a microchannel by A.
Figure 2 A section of the computational mesh used in the CFD simulations Figure 3 Comparison of the present work with experiment results [1] Results and discussion Figure 3 shows a comparison of the experimental results obtained by Xu et al. [1] with the simulations.
As can be seen from Fig. 3, the simulation result shows a shift to wall temperature no more than 3 K as compared to the experiment data.
Online since: March 2017
Authors: J.M.P. Conde, J.M.S.M. Cardoso
Numerical Simulation of the Oscillating Water Column inside a Vertical Cylinder in Regular Waves Using IHFOAM
J.M.P.
In simulations without porous zone solves only the RANS equations.
In the simulation presented was used the version 2.2.2 of OpenFOAM®, installed in the Ubuntu 14.04LTS operating system.
For this, in future work, simulations will be conducted contemplated that influence.
[16] OpenFOAM, The Open Source CFD Tollbox – User Guide v.2.2.2, OpenCFD, 2013
In simulations without porous zone solves only the RANS equations.
In the simulation presented was used the version 2.2.2 of OpenFOAM®, installed in the Ubuntu 14.04LTS operating system.
For this, in future work, simulations will be conducted contemplated that influence.
[16] OpenFOAM, The Open Source CFD Tollbox – User Guide v.2.2.2, OpenCFD, 2013
Online since: June 2012
Authors: Xiao Chuan Wang, Guo He
China
heguo953760@163.com
Keywords: exhaust system; water-collecting box (WCB); spray cooling; Computational Fluid Dynamics (CFD)
Abstract.
Tab.1 Different structures of WCB models Tab.2 Four working conditions in simulation Model L1 L2 Style of turning I L0 L0/2 Folded tube II L0/2 L0 Folded tube III L0 L0 Folded tube IV L0 L0/2 Bended tube Ⅴ L0/2 L0 Bended tube Ⅵ L0 L0 Bended tube Working condition Tin / K Vin / 1 473 10 2 573 15 3 673 20 4 723 25 The Discrete Phase Model (DPM) was used to solve the problem in the FLUENT code.
The simulation of spraying cooling into IV model is done, and the numerical results agree well with the experimental results in Ref. [5].
Tab.1 Different structures of WCB models Tab.2 Four working conditions in simulation Model L1 L2 Style of turning I L0 L0/2 Folded tube II L0/2 L0 Folded tube III L0 L0 Folded tube IV L0 L0/2 Bended tube Ⅴ L0/2 L0 Bended tube Ⅵ L0 L0 Bended tube Working condition Tin / K Vin / 1 473 10 2 573 15 3 673 20 4 723 25 The Discrete Phase Model (DPM) was used to solve the problem in the FLUENT code.
The simulation of spraying cooling into IV model is done, and the numerical results agree well with the experimental results in Ref. [5].
Online since: October 2013
Authors: Shi Jin Chen, Hui Ding, Sheng Rong Shu, Kai Cheng
Thermal modeling based on FEA-CFD is carried out by using ANSYS and FLUENT.
The simulation results demonstrate that the innovative tooling design concept can effectively reduce tool temperature away from the extremely high temperature and sensing the cutting temperature at tool tip.
Different mechanical load conditions have been analysed using the simulation software ANSYS to size and optimise the cutting insert.
The simulations showed that a thickness of 1mm of the insert and a wall thickness 0.7mm towards the flank face are sufficient to withstand the moderate mechanical loads.
The simulation parameters used are listed in Table 1.
The simulation results demonstrate that the innovative tooling design concept can effectively reduce tool temperature away from the extremely high temperature and sensing the cutting temperature at tool tip.
Different mechanical load conditions have been analysed using the simulation software ANSYS to size and optimise the cutting insert.
The simulations showed that a thickness of 1mm of the insert and a wall thickness 0.7mm towards the flank face are sufficient to withstand the moderate mechanical loads.
The simulation parameters used are listed in Table 1.
Online since: March 2012
Authors: Dong Mei Zhao, Xue Peng Liu
Focal panel of hexahedron six side up and down with the air and surface are direct contact will occur convection, can think it is natural convection, another of the focal panel 19 through holes are installed in the hollow shaft axis, the air inside being heated will also occur movement, because of the limited space in the shaft here is very complicated way of heat is bad for simulation, so in this paper that here is, and coke insulation panel on the surface of the natural convection of the convection coefficient in slightly larger take.
Apparently temperature field distribution in fig.4 should be the same as that in figure 3 References [1]REN De-peng XIA Xin-lin Analysis of Coupled Heat Transfer in Air Cooling Channel of Aeroengine and Thermal Isolation Layer, ACTA AERONAUTICA ET ASTRONAUTICA SINICA, 2005, 26(4) [2]LI Juxiang TU Shandong ,Heat transfer of laminar flow over a plate embedded in porous medium with a constant heat flux under local non-equilibrium condition, JOURNAL OF CHEMICAL INDUSTRY AND ENGINEERING(CHINA) ,2010, 61(1) [3]Wenge Chen, Thermal analysis of toroidal field coils of the HT-7U tokamak, JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY, 2001, 24(4) [4]Guixiang Zhang, Heat transfer analysis for double skin facade of building based on CFD fluid model, CONSTRUCTION & DESIGN FOR PROJECT, 2003, (9)
Apparently temperature field distribution in fig.4 should be the same as that in figure 3 References [1]REN De-peng XIA Xin-lin Analysis of Coupled Heat Transfer in Air Cooling Channel of Aeroengine and Thermal Isolation Layer, ACTA AERONAUTICA ET ASTRONAUTICA SINICA, 2005, 26(4) [2]LI Juxiang TU Shandong ,Heat transfer of laminar flow over a plate embedded in porous medium with a constant heat flux under local non-equilibrium condition, JOURNAL OF CHEMICAL INDUSTRY AND ENGINEERING(CHINA) ,2010, 61(1) [3]Wenge Chen, Thermal analysis of toroidal field coils of the HT-7U tokamak, JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY, 2001, 24(4) [4]Guixiang Zhang, Heat transfer analysis for double skin facade of building based on CFD fluid model, CONSTRUCTION & DESIGN FOR PROJECT, 2003, (9)
Online since: November 2011
Authors: Guang Yao Ouyang, Ping Zhang, Jian Ming Lv
Simulation and Application of solid-liquid coupled heat transfer in internal combustion engines [D].Hangzhou: Zhejiang University, 2006:39~45
CFD analysis for cylinder head water-jacket in separated cooling type diesel engine[J].Automobile Technology,2004(3):9~12.
CFD analysis for cylinder head water-jacket in separated cooling type diesel engine[J].Automobile Technology,2004(3):9~12.
Online since: October 2012
Authors: Liang Liang, You Xia Pang, Zong Ming Zhu, Yan Xu, Yong Tang
CFD method, and erosion and cavitation interactive wear test is made on the rotary wear test-bed.
The test by Bao Chonggao etc. studies the performances of electrochemical corrosion and erosion wear of different materials in erosion wear process [1], Pang Youxia etc. analyze wear scar state and development law of sandy water flow around airfoil blade interface with turbulent boundary layer theory[2];Wu Yulin etc make theoretical analysis and numerical computation on cavitation flow field of 3D turbulent flow of liquid-vapor two-phase flow in turbine runner[3],Yang Minguan etc make numerical simulation and experimental study on cavitation characteristics in axial flow pump impeller [4],Wang Jiadao etc study the effect of micro particles and their size on hydraulic machinery cavitation process[5]。
Simulation of cavitation flow in a francis turbine runner[J].
Numerical simulation and experimental study of cavitation in axial-flow pump impeller[J].
Fluent12 fluid analysis and engineering simulation[M].
The test by Bao Chonggao etc. studies the performances of electrochemical corrosion and erosion wear of different materials in erosion wear process [1], Pang Youxia etc. analyze wear scar state and development law of sandy water flow around airfoil blade interface with turbulent boundary layer theory[2];Wu Yulin etc make theoretical analysis and numerical computation on cavitation flow field of 3D turbulent flow of liquid-vapor two-phase flow in turbine runner[3],Yang Minguan etc make numerical simulation and experimental study on cavitation characteristics in axial flow pump impeller [4],Wang Jiadao etc study the effect of micro particles and their size on hydraulic machinery cavitation process[5]。
Simulation of cavitation flow in a francis turbine runner[J].
Numerical simulation and experimental study of cavitation in axial-flow pump impeller[J].
Fluent12 fluid analysis and engineering simulation[M].
Online since: January 2014
Authors: Yun Long Li, Chang Lu Zhao, Yang Yang Liu, Qian Peng, Chang Jiang Li
The simulation model of the power capsule
Fig 5:Three-dimensional simulation model of power capsule
Given the above test, we build the simulation model of the power capsule including the intake and exhaust grille, radiator, inlet volute, fan, outlet volute.
For the symmetrical arrangement of the fan, we use half model to do the simulation.
Table 3 shows the contrast between experiment’s results and the simulation’s.
Fig.6: Static nephogram of the profile of cooling system Fig.7: The velocity vector diagram of the profile of cooling system The thermal state simulation of the cooling system in the power capsule Given the validity of the simulation model, we make a thermal state simulation of the cooling system.
Evaluation of Cooling Air Duct Comprehensive Performance in Vehicle Based on CFD Analysis [J]. 2012,33(3):50-53 [3] Bi X P, Liu X X, Zhao Y X, et al.
For the symmetrical arrangement of the fan, we use half model to do the simulation.
Table 3 shows the contrast between experiment’s results and the simulation’s.
Fig.6: Static nephogram of the profile of cooling system Fig.7: The velocity vector diagram of the profile of cooling system The thermal state simulation of the cooling system in the power capsule Given the validity of the simulation model, we make a thermal state simulation of the cooling system.
Evaluation of Cooling Air Duct Comprehensive Performance in Vehicle Based on CFD Analysis [J]. 2012,33(3):50-53 [3] Bi X P, Liu X X, Zhao Y X, et al.
Online since: April 2012
Authors: Zhen Long Wang, Yu Kui Wang, Zhao Qi Zeng, Xiao Long He
Numerical simulation of the aerodynamic micro air bearing is conducted to investigate the bearing load capacity.
The CAE part is composed of model import to GAMBIT software, grid mesh and boundary conditions setting, numerical simulation by FLUENT software, parameters optimization.
The micro-air journal bearing load capacity is analysed by numerical simulation by using the commercial software FLUENT.
The Computational Fluid Dynamics (CFD) of the air in the journal bearing is simulated in order to test the bearing load capacity.
The CAE part is composed of model import to GAMBIT software, grid mesh and boundary conditions setting, numerical simulation by FLUENT software, parameters optimization.
The micro-air journal bearing load capacity is analysed by numerical simulation by using the commercial software FLUENT.
The Computational Fluid Dynamics (CFD) of the air in the journal bearing is simulated in order to test the bearing load capacity.