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Online since: September 2013
Authors: Lin Hua Piao, Jing Bo Chen, Jin Tang
Using ANSYS-FLOTRAN CFD software, the finite element simulation is conducted by a series of procedures, such as two-dimensional model building of fluidic gyroscope, mesh, load applying and equation solving.
In this paper, we use the FLOTRAN CFD analysis of ANSYS software, according to the actual size of fluidic gyroscope, a two-dimensional model is established, and flow field of nozzle array structure and normal nozzle structure of fluidic gyroscope is calculated in sensitive cavity, and trying to illustrate the meaning of nozzle array structure improves the properties of fluidic gyroscope [2].
Nozzle Fig. 1 Sensitive element structure Fig. 2 Sensitive element structure (a) Normal structure (b) Nozzle array structure Fig. 3 Two-dimensional simplified models of sensitive cavity of two structures Solve with Finite Element Method The FLOTRAN CFD analysis of ANSYS software is an advanced tools used to study two dimensional and three dimensional flow fields, the simulation typically comprises modeling, loading and solving [3-4].
Select FLOTRAN CFD analysis of ANSYS software.
Wang: Numerical simulation of practical engineering in ANSYS (Northwestern Polytechnical University Press, China 1999)
In this paper, we use the FLOTRAN CFD analysis of ANSYS software, according to the actual size of fluidic gyroscope, a two-dimensional model is established, and flow field of nozzle array structure and normal nozzle structure of fluidic gyroscope is calculated in sensitive cavity, and trying to illustrate the meaning of nozzle array structure improves the properties of fluidic gyroscope [2].
Nozzle Fig. 1 Sensitive element structure Fig. 2 Sensitive element structure (a) Normal structure (b) Nozzle array structure Fig. 3 Two-dimensional simplified models of sensitive cavity of two structures Solve with Finite Element Method The FLOTRAN CFD analysis of ANSYS software is an advanced tools used to study two dimensional and three dimensional flow fields, the simulation typically comprises modeling, loading and solving [3-4].
Select FLOTRAN CFD analysis of ANSYS software.
Wang: Numerical simulation of practical engineering in ANSYS (Northwestern Polytechnical University Press, China 1999)
Online since: July 2012
Authors: Shang Yu Yang, Fu Jun Wang, Xue Lin Tang, Yu Lin Wu
The commercial CFD Fluent software is used to perform all the computations on a Pentium-V with a 2.4 GHz CPU and a 3 Gb memory.
All the simulation results are grid independent.
Thirty years of numerical flow simulation in hydraulic turbomachines.
An improved large eddy simulation of two-phase flows in a pump impeller.
SIMULATION, 2000, 74: 71-74
All the simulation results are grid independent.
Thirty years of numerical flow simulation in hydraulic turbomachines.
An improved large eddy simulation of two-phase flows in a pump impeller.
SIMULATION, 2000, 74: 71-74
Online since: November 2021
Authors: Thi Kim Dung Hoang, Phu Khanh Nguyen, Ngoc Khanh Tran
As in many other areas of aerodynamics, computational fluid dynamics (CFD) was introduced as a tool for aerodynamic research and design.
Both the indicial method and the coupled CFD–CSD method were used.
Hoang et al. [5] presented a new integrated CFD–CSD simulation for flutter calculations based on a parallel, multiblock, multigrid flow solver for the Euler/Navier-Stokes’ equations using ANSYS software.
Thin plat with loadcell Fig. 1 Thin plate The simulation of aeroelasticity problem including nonlinear CFD analysis in combination with dynamic structure model, was carried out to study the deformation of the structure under aerodynamic changes over time.
The simulation was set up with the same configuration of experiment.
Both the indicial method and the coupled CFD–CSD method were used.
Hoang et al. [5] presented a new integrated CFD–CSD simulation for flutter calculations based on a parallel, multiblock, multigrid flow solver for the Euler/Navier-Stokes’ equations using ANSYS software.
Thin plat with loadcell Fig. 1 Thin plate The simulation of aeroelasticity problem including nonlinear CFD analysis in combination with dynamic structure model, was carried out to study the deformation of the structure under aerodynamic changes over time.
The simulation was set up with the same configuration of experiment.
Online since: October 2017
Authors: Gordana Michos, Markus Hubert, Julian Müller, Jörg Franke, Lukas Koch, Johannes Paulus
The fluid cooling of these models is not represented by a single heat transfer coefficient but an
actual Computational Fluid Dynamics (CFD) simulation.
Models with a CFD simulation of the fluid cooling so far always possess only a simplified thermal model.
In this paper a detailed thermal model of a spindle is combined with a holistic CFD simulation of the cooling system.
The internal fluid cooling in the housing is to be simulated separately based on CFD method.
As heat sink the ambient air and the fluid cooling (as separate CFD simulation) were taken into consideration.
Models with a CFD simulation of the fluid cooling so far always possess only a simplified thermal model.
In this paper a detailed thermal model of a spindle is combined with a holistic CFD simulation of the cooling system.
The internal fluid cooling in the housing is to be simulated separately based on CFD method.
As heat sink the ambient air and the fluid cooling (as separate CFD simulation) were taken into consideration.
Online since: October 2012
Authors: Yuan Bao Leng, Wan Zeng Song, Bin Zhang, Ling Ling Wang, Zhen Zhen Yu, Lei Zhang
Comparisons were made between CFD model and weakly non-linear KdV theory, it was shown that the wave amplitude predictions by the CFD model agreed well with the KdV equation.
Introduction With the development of computer technology and numerical simulation methods, numerical wave tanks based on the computational fluid dynamics (CFD) model have been widely used in the studies on the propagation of waves and the interaction between waves and structures [1-3].
Model Application and Simulation Method Numerical Wave Tank Design.
Therefore, the proposed CFD model was capable of simulating the propagation and evolution of internal solitary waves with high precision.
According to the numerical simulation, the convergence flow and divergence flow on the water surface caused by the generation and propagation of internal waves were successfully captured.
Introduction With the development of computer technology and numerical simulation methods, numerical wave tanks based on the computational fluid dynamics (CFD) model have been widely used in the studies on the propagation of waves and the interaction between waves and structures [1-3].
Model Application and Simulation Method Numerical Wave Tank Design.
Therefore, the proposed CFD model was capable of simulating the propagation and evolution of internal solitary waves with high precision.
According to the numerical simulation, the convergence flow and divergence flow on the water surface caused by the generation and propagation of internal waves were successfully captured.
Online since: July 2014
Authors: T. Vinoth, K. Karuppasamy, D. Santhosh Kumar, R. Dhanuskodi
The numerical simulations are carried out by using Ansys-Fluent solver.
In order to perform numerical simulation, experimental data of Mokry et al. [2] is considered.
In order to get confidence of the present work, the experimental data of Yamagata et al. [1] has been used for simulation.
The simulation and validation of the present model against the experimental data of Yamagata et al. was performed (Figs. 1a and 1b).
Based on simulation of cases with different q/G ratios, it was found that when q/G < 0.6, heat transfer enhancement is observed.
In order to perform numerical simulation, experimental data of Mokry et al. [2] is considered.
In order to get confidence of the present work, the experimental data of Yamagata et al. [1] has been used for simulation.
The simulation and validation of the present model against the experimental data of Yamagata et al. was performed (Figs. 1a and 1b).
Based on simulation of cases with different q/G ratios, it was found that when q/G < 0.6, heat transfer enhancement is observed.
Online since: January 2020
Authors: R.S. Santos, A.G. Barbosa de Lima, Severino Rodrigues de Farias Neto, J.B. Silva Júnior, Anderson Melchiades Vasconcelos da Silva
Drying of Ceramic Bricks: Thermal and Mass Analysis via CFD
R.
The computational fluid dynamics (CFD) can be described in a general form as the simulation of physical and/or physical-chemical processes that involves fluid flow.
The mesh was generated using the ICEM CFD.
Table 2 - Data used in the simulations.
LIMA, Drying of Industrial Hollow Ceramic Brick: A Numerical Analysis Using CFD.
The computational fluid dynamics (CFD) can be described in a general form as the simulation of physical and/or physical-chemical processes that involves fluid flow.
The mesh was generated using the ICEM CFD.
Table 2 - Data used in the simulations.
LIMA, Drying of Industrial Hollow Ceramic Brick: A Numerical Analysis Using CFD.
Online since: February 2014
Authors: Chun Qing Wang, Cai Xia Bian, Di Wang
The boundary conditions
The entry has been set to mass flow inlet boundary conditions in numerical simulation by CFD, inlet temperature determined by the entrance pressure.The turbulence intensity is 0.1 and turbulent viscosity ratio is 10,and medium for saturated steam.Taken ten exports as pressure outlet boundary conditions,pressuer is 12 kpa,which reflow temperature according to discharge pressure,and flow turbulence intensity is 0.1,and flow turbulent viscosity ratio is 5.The wall choose wall surface boundary conditions,it will choose no slip boundary condition,and heat insulation with the outside world.
The simulation results and analysis In order to balance flow distribution and decreasing the pressure drop in each vapor distributing pipe,simulate the flow field when add chamfering with different angle on the back of exhausted pipe or not ,using the CFD software called FLUENT,the steam flow field of exhaust pipe for a 1000 MW power unit with direct air cooling is stimulated under typical steam turbine conditions,the simulation results are showed as Table 2 and Table 3.
conclusion Analysis of the simulation results, the following conclusions: 1.
[3] Lixing Zhou.Turbulent Numerical Simulation of two-phase flow and combustion.Beijing : Tsinghua University Press, 1991
[4] Zhanzhong Han.FLUENT fluid engineering simulation and application examples.Beijing : Beijing Institute of Technology Press, 2004.
The simulation results and analysis In order to balance flow distribution and decreasing the pressure drop in each vapor distributing pipe,simulate the flow field when add chamfering with different angle on the back of exhausted pipe or not ,using the CFD software called FLUENT,the steam flow field of exhaust pipe for a 1000 MW power unit with direct air cooling is stimulated under typical steam turbine conditions,the simulation results are showed as Table 2 and Table 3.
conclusion Analysis of the simulation results, the following conclusions: 1.
[3] Lixing Zhou.Turbulent Numerical Simulation of two-phase flow and combustion.Beijing : Tsinghua University Press, 1991
[4] Zhanzhong Han.FLUENT fluid engineering simulation and application examples.Beijing : Beijing Institute of Technology Press, 2004.
Online since: November 2011
Authors: Ying Liu, C.J. Wu
Introduction
With the development of computational fluid dynamics, CFD technology has been widely applied to the design of products, such as fluid machinery, vehicle and aircraft.
Jiang et al also predicted the aerodynamic noise base on CFD simulation and compared the numerical results with the experimental data, which presented the significant impact of the grill on the flowing and noise characteristics of the air conditioner outdoor unit.
Junwei Hu et al [4] analyzed the strength and weakness of two types of grill based on CFD simulation.
Numerically simulating the inner flow field of the air conditioner outdoor unit Numerical simulation.
Fluent is a piece of widely-used commercial CFD software and it is used here to simulate the inner flow field of the air conditioner outdoor unit.
Jiang et al also predicted the aerodynamic noise base on CFD simulation and compared the numerical results with the experimental data, which presented the significant impact of the grill on the flowing and noise characteristics of the air conditioner outdoor unit.
Junwei Hu et al [4] analyzed the strength and weakness of two types of grill based on CFD simulation.
Numerically simulating the inner flow field of the air conditioner outdoor unit Numerical simulation.
Fluent is a piece of widely-used commercial CFD software and it is used here to simulate the inner flow field of the air conditioner outdoor unit.
Online since: June 2011
Authors: Duo Sheng Li, Xian Liang Zhou, Dun Wen Zuo, Xiao Zhen Hua
May used a simplified Monte Carlo model to simulation of polycrystalline CVD diamond film growth [11].
These simulation and experiment studies show that it was difficult to prepare high quality convex diamond film.
It was well agree with the simulation results of pressure.
High quality convex diamond film was prepared, and these results are well with accord simulation predicts.
In the present computional simulations, numerical analysis was based CFD.
These simulation and experiment studies show that it was difficult to prepare high quality convex diamond film.
It was well agree with the simulation results of pressure.
High quality convex diamond film was prepared, and these results are well with accord simulation predicts.
In the present computional simulations, numerical analysis was based CFD.