Search results

Numerical Simulated Method on Wind Environmental of outdoor Can Li1, a, Tianfu Deng2,b 1 College of Civil Engineering,Hunan University of technology,Zhuzhou 412008,china 2 Shanghai Research Institute of Building Sciences, Shanghai, 201108, China alc19992@126.com, bdengtianfu@126.com Keywords: wind environment; numerical simulation; CFD; district planning Abstract.
The steady-state three-dimensional turbulent airflow fields were analyzed by computational fluid dynamic (CFD) method for the two cases.
Compared with the model experiment, the CFD has advantages as lower cost, shorter time, and easily obtained information about the flow field, and the sensitivity analysis of the parameter change is easily, so simulation of more complicated real flow is also easily realized.
The simulation results showed good agreement with the test data[12].
Application of CFD tools for indoor and outdoor environment design.

The RANS equations for incompressible flow is solved with a Realizable k-ε turbulence model using the commercial CFD code STAR-CCM+.
CFD model Computation regions and boundary conditions.
Conclusions CFD analysis of the coolant mixing within the upper plenum of a PWR is conducted by solving the steady RANS equations for incompressible flow with Realizable k-ε turbulence model utilizing the commercial CFD code STAR-CCM+.
Part 1: Computational fluiddynamics(CFD) simulations.
Kang, CFD analysis for full vessel upper plenum in Maanshan Nuclear Power Plant, Nucl.

Numerical simulation of blade channel vortex in a low head Francis turbine Hongming ZHANG 1, a, Lixiang ZHANG 1,b 1 Department of Engineering Mechanics, Kunming University of Science and Technology, Kunming 650500,P.R.China ahmzhang8888@126.com, bzlxzcc@126.com Keywords: CFD; channel vortex; Francis turbine; OpenFOAM Abstract.
OpenFOAM is an object-oriented C++ library of classes and routines of use for writing CFD codes.
It has a set of basic features similar to any commercial CFD solver, such as turbulence models and discretization schemes.
It is increasingly being used in the numerical simulation of hydraulic machinery.
SIMULATING CAVITATING FLOWS WITH LES IN OPENFOAM, V European Conference on Computational Fluid Dynamics, ECCOMAS CFD 2010, J.

Numerical Simulation of Muzzle Flow Field of Gun Based on CFD Zhangxia Guo1, a, Yutian Pan1,b,Yongcun Wang2,c and Haiyan Zhang3,d 1 College Of Mechatronic Engineering North University Of China,Taiyuan,China 2 Northwest Institute of Mechanical & Electrical Engineering,Xianyang,China 3 China North Vehicle Research Institute,Beijing,China a guozhangxianuc@163.com, bpanyutiannuc@163.com, c401713043@qq.com, d bysyzhy@hotmail.com Keywords: numerical simulation; muzzle flow field; CFD Abstract.
The numerical simulation result was identical with the experimental.
With the development of CFD and computer technology, the method of numerical calculation can more accurately simulate the development process of the muzzle flow field.
Numerical simulation of wave system . [ Ph D Thesis ].
Numerical simulation of muzzle blast flow field of large caliber guns.

Using ANSYS-FLOTRAN CFD program, the finite element simulation is conducted by a series of procedures, such as three-dimensional model building of airflow inclination sensor, network modifying, loads applying and equation solving.
Solution of finite element method FLOTRAN CFD analysis function of ANSYS software is used for analysis 2d and 3d fluid flow of advanced tools.
(1)Selection of analyzing types: the choice of FLOTRAN CFD analysis capabilities of ANSYS software
With the slice observation function of FLOTRAN CFD observation of inside the temperature and velocity field distribution can be seen.
[3] Guoqiang.Wang, “Numerical simulation and practice on ANSYS,” [M].

Modeling and verification Simulation process.Research based on GT-power and Fluent co-simulation to analyze uniformity of EGR gas distribution.
The simulation flow as following in figure 2.
(3) Co-simulation of 1-D simulation software GT-power and 3-D CFD software Fluent could obtain engine perfoemance parameters and intake flow related parameters precisely,it provided a reference for engine emission control teconology research.
[2] Ramanathan, Subramanian ; Hudson, Anthony; Styron, Joshua; Baldwin, Brian; Ives, David; Ducu, Dan.EGR and swirl distribution analysis using coupled 1D-3D CFD simulation for a turbocharged heavy duty diesel engine.SAE Technical Papers, 2011
Structural analyses for the vehicle exhaust system based on CFD simulation[J].

Introduction CFD analysis is widely used to determine lift and drag coefficients of airfoils.
However, modelling drag coefficients through CFD analysis has remained a key challenge over the years.
Results from the CFD analysis has also been compared with experimental and XFOIL [5] results.
Cokljat, “A Three-Equation Eddy-Viscosity Model for Reynolds-Averaged Navier–Stokes Simulations of Transitional Flow,” Journal of Fluids Engineering, vol. 130. p. 121401, 2008
Fürst, “Numerical simulation of transitional flows with laminar kinetic energy,” in Engineering MECHANICS, 2012, vol. 20, no. 5, pp. 309–315

Drying of Industrial Hollow Ceramic Brick: A Numerical Analysis Using CFD M.
Then, aim of this work is to predict the drying of an industrial hollow ceramic brick in an oven by CFD.
The geometry and mesh were constructed using ICEM CFD 15.0 software.
Simulation and Experimentation of Drying Ceramic Bricks (In portuguese).
Simulation and Experimentation of Red Ceramic Drying in Industrial Thermal Systems.

Keywords: Vertical-Axis Water Turbine, hydrokinetic technology, CFD, NACA 0025.
In this paper, two-dimensional, time-accurate, parallel CFD simulations of the flow field around a small Darrieus-type VAWaterT operating in an open flow-field are presented, as a part of a research work involving both the University of Padua (Italy) and Vortex Energy S.r.l.
An unstructured mesh was chosen for the Wind Tunnel sub-grid, in order to reduce engineering time to prepare the CFD simulations.
Temporal Discretization and Convergence Criteria The commercial CFD package adopted for the proposed numerical simulations was ANSYS FLUENT 12.1 ®, that implements 2-D Reynolds-averaged Navier-Stokes equations using a finite volume-finite element based solver.
An improved temporal-discretization simulation did not show any significant variation.

Fig. 3(b) shows the CFD simulation result from the current study and Fig. 3(c) shows the experimental result of the water model using the LDA measurement.
The flow structure of the two counter-rotating toroidal vortices can be captured from the CFD simulation.
The comparison of the flow pattern between the CFD simulation and the experiment results shows good agreement with minor difference.
The CFD simulation and the experiment results of 1-strand tundish model shows good agreement with minor difference.
Sukam, CFD Simulation of Molten Steel Flow with Isothermal Condition in the Continuous Casting Tundish, KMUTNB Int J Appl Sci Technol, 9 (2016) 71-77