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Online since: August 2011
Authors: Neng Huan Wang, Zheng Zhang, Yu Shan Chen
In the study of engine-thermoelectric source, domestic and foreign scholars are using numerical methods[3]-[5] and CFD soft to simulate cars’ thermal system[6]-[9]. [10] and [11] established the models and made numerical simulations for a built-in thermoelectric generation system.
We Build and mesh the model of thermoelectric generator with the use of pre/E and ICEM CFD soft respectively.
STAR-CD Simulation.
System simulation requires different software.
Investigation of a Coupled CFD and Thermal Modeling Methodology for Prediction of Vehicle Underbody Temperatures.
Online since: September 2015
Authors: K. Krishnakumar, J. Aneesh Kumar, S. Savithri
Computer Simulation of Centrifugal Casting Process using FLOW-3D Aneesh Kumar J1, a, K.
Hence, in the present work, the commercial CFD code FLOW-3D™, has been used to simulate the mold filling sequence for a simple hollow cylindrical casting during vertical centrifugal casting process.
Hence in the present work, the commercial CFD code FLOW-3D™, has been used to simulate the mold filling sequence of a simple hollow cylinder casting during vertical centrifugal casting process.
The total number of voxels are 4.4 million with a mesh size of 2 mm which is the optimum mesh size for the current simulation.
Heng-zhi, Numerical simulation and experimental investigation of two filling methods in vertical centrifugal casting, Trans.
Online since: July 2015
Authors: Krishna Murari Pandey, Pinku Debnath
A three dimensional computational analysis has been done by finite volume discretization method using ANSYS Fluent 14 CFD commercial software.
The simulation boundary conditions are provided to capture the wave properties near to the Shchelkin spiral wall as shown in Fig. 3.
This grid size is maximum smallest grid size for best meshing accuracy and less time consuming simulation.
Further simulations gives constant propagation velocity at δ=0.84m iso-surface distance.
Pandey, Effect of Blockage Ratio on Detonation Flame Acceleration in Pulse Detonation Combustor Using CFD, Applied Mechanics and Materials, Vol. 656, pp 64-71, 2014
Online since: September 2011
Authors: Hong Jie Yan, Ping Zhou, Ze Lin Xu, Zhuo Chen, Jing Wen Mo
CFD Study on the Flow Characteristics in Filleted Microchannels YAN Hong-jie1,a, ZHOU Pingb,*, XU Ze-linc, CHEN Zhuod, MO Jing-wene 1School of Energy Science and Engineering, Central South University, Changsha Hunan, 410083, P.R.
The flow characteristics of water in filleted microchannels were simulated based on CFD method.
Due to the high cost, long cycle and big uncertainty of measurement of experimental study, numerical simulation have been widely adopted these years to study flow in microchannels [8,9].
Thus, in this paper, CFD method was used to study laminar water flow in filleted microchannels.
(3) Based on the data from numerical simulation, the equation of Po number versus aspect ratio was fitted as .
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)
Online since: October 2014
Authors: J. Masud, Muhammad Ayaz
Prism mesh used to resolve the physics perpendicular to the surfaces of the models was applied using ICEM CFD.
It has been demonstrated that CFD techniques can be used to analyze the flow and temperature field inside the cockpit of an aircraft.
The exact number of inlets and outlets, along with their accurate positioning and velocity orientation, were given due to their importance during simulation.
Pressure-based formulation with explicit algorithm of Fluent® CFD code [10,11] was chosen, along with SIMPLE scheme for computation.
Jalil and Haider Qassim Alwan," CFD Simulation for a Road Vehicle Cabin" JKAU: Eng.
Online since: January 2020
Authors: R.S. Santos, A.G. Barbosa de Lima, Severino Rodrigues de Farias Neto, Anderson Melchiades Vasconcelos da Silva, J.B. Silva Júnior
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.
Online since: January 2016
Authors: Jiří Fürst
The numerical solution is achieved with finite volume method and the rotordynamic coefficients are evaluated from several simulations with different rotor precessions.
Two typical methods used for the prediction of stiffness and damping coefficients are the 3D CFD based method (see e.g. [9], [8], [4]) and the bulk-flow model (see e.g. [10], [3]).
The simulations presented in this paper were obtained by in-house finite volume code developed specifically for the analysis of seal flows.
One can see large difference in radial component of the force between 3D CFD results and the simplified bulk-flow code.
Rotordynamics of turbine labyrinth seals: a comparison of CFD models to experiments.
Online since: December 2018
Authors: Severino Rodrigues de Farias Neto, A.G. Barbosa de Lima, A.J. Ferreira Gadelha, T.R. Nascimento Porto, T.H. Freire de Andrade
A powerful mathematical modeling to predict gaseous pollutant concentration at atmosphere and different CFD simulations results by Ansys CFX® software are presented.
The CFD simulation is realized by the discretization of partial deferential equation, through numerical methods.
CFD Application The Physical Problem.
Results and Analysis Experimental Planning for Simulations.
Table 6 - Conditions of stability used on simulations.
Online since: February 2014
Authors: Di Wang, Chun Qing Wang, Cai Xia Bian
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.
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