Search results

3-Dimensional Numerical Simulation of Tesla Disc Turbines for Industrial Dust Blower Hu Jin1,2,a, Yi Jiangang1,2,b * 1 Hubei Key Laboratory of Industrial Fume & Dust Pollution Control, Jianghan University, Wuhan, China 2 School of Electromechanical and Architectural Engineering, Jianghan University, Wuhan, China a hujin9190@gmail.com, b yjg_wh@yeah.net Keywords: CFD; Numerical simulation; Tesla disc turbines; Industrial Dust Blower Abstract.
In this paper, 3-dimensional model Tesla turbine is established by using CFD software FLUENT to analyze the inner flow field in the given pressure and boundary conditions.
The flow field simulation is analyzed based on smooth surface of the shell and no slip of the gas phase.
Grid division Simulation result analysis Figure 4 and Figure 5 show the velocity vector and the velocity contours.
Self-inducing impellers: Flow Visualization and CFD Simulation.

The article presents selected results of a computer simulation of chemically active fluidized bed phenomena used in the thermo-chemical treatment of steel.
The results of CFD (Computational Fluid Dynamics) computer simulation of temperature distribution and fluidizing gas mass distribution along the walls of samples placed in the fluidized bed are presented.
CFD analysis Modeling of phenomena occurring in a fluidized bed was conducted with a Fluent software.
Results of calculations The results of computer simulation of the gas flow around the sample placed in the active fluidized bed are shown in figure 4.
Oleszczak: Determination of the parameters of the surface layer construction of steel treated in a fluidized bed in the carburizing process by CFD method, Report, 2009, p. 28 [2] T.

Characteristic parameters are proposed as transient flow and heat transfer parameters from in-cylinder CFD simulation, with further consideration of the influence of thermal conductivity, viscosity and Prandtl number.
Characteristic parameters are proposed as transient flow and heat transfer parameters from in-cylinder CFD simulation.
So, we try to get the results of and from the in-cylinder simulation.
In this example, with single CPU, simulation time increases 15 minutes.
Characteristic parameters of the new model are proposed as transient flow and heat transfer parameters from in-cylinder CFD simulation.

This paper will use CFD software Fluent, through 2D simulation, compare the lift to drag ratio of cylinder blades.
This paper uses CFD simulation software fluent to analyze flow field of the cylinder blades of Magnus wind turbine.
By CFD simulation and experiments, compare the performance of the traditional cylinder blades and new structure.
These are the same with simulation results.
These prove that the simulation work is believable.

Differences in the Design of Underfloor Air Cavities Tomáš Renčko1,a* and Anna Sedláková1,b 1Technical University of Košice, Civil Engineering Faculty, Vysokošlská 4, 042 00 Košice, Slovakia atomas.rencko@tuke.sk, banna.sedlakova@tuke.sk Keywords: underfloor ventilation, concrete slab, shaped unit, CFD simulation, experiment Abstract.
In this article two different underfloor ventilation systems are compared using CFD simulation.
CFD Simulations ANSYS CFX [14] is used to assess the underfloor ventilation model examples.
Summary The paper aims to highlight the possibilities of CFD computer simulation programs to assess airflow in underfloor cavities.
Šikula: CFD simulation of ventilated air cavity.

The Simulations are carried out using commercial CFD code ANSYS Fluent 13.
The Simulations are carried out using commercial CFD code ANSYS Fluent 13.
Meshing is probably the most important and complex part of a computational simulation.
Boundary Conditions and Convergence Criteria Simulations are carried out using commercial CFD code ANSYS Fluent 13.
Stern, CFD calculations of sinkage and trim, J.

Eilmer Simulation Results.
CFD validation was performed through a comparison of the 2D and 3D results.
The case was split into two sub-models to minimise simulation time.
Eilmer Simulation Results.
[2] Wilcox, D.C. 2006, Turbulence modeling for CFD, DCW Industries

Secondly, the thermal control measure is optimized with the method that consists of CFD simulations and experiments.
Using Ansys CFD simulation[5] software package, a thermal analysis including heat conduction and convection is taken.
Fig.2 CFD simulation model 4 different simulations are taken to get the most ideal thermal control: temperature in measuring head can stably reach a value of above -10 degrees; temperature gradient in steel drum stays as small as possible; electric consumption must be less than 100W.
a).1st simulation b).2nd simulation c).3rd simulation d).4th simulation Fig.3 4 simulation results The comparison of results in Fig.3 is shown as table.1.
Table.2 Comparison of simulation 4 and simulation experiment Temperature of measuring head[] Temperature of steel drum[] Power consumption[W] Simulation 4 -2~-2.9 -63~-52 15.7 Simulation experiment 0,5 -72,-70 18.3 Table.2 says simulation experiment result agrees with the simulation.

Fig. 3 The cutaway view of duct BD15 CFD simulation of the high-skew ducted propeller The are many commercial CFD (Computational Fluid Dynamics) softwares, such as Fluent and CFX, which can be used for hydrodynamic calculation of ducted propeller [1~5].
For the high-skew ducted propeller, the CFD simulation had been done with CFX, and its hydrodynamic performance had been gotten, which is shown in Fig. 4-6.
(a) the fluid model for CFD simulation (b) the velocity field Fig. 4 Model and result of CFD simulation for the high-skew ducted propeller The velocity field by CFD simulation showed that some eddys appeared after the hub of propeller.
The open water performance curve had been drawn by results of CFD simulation.
Fig. 5 shows open water performance curve of the high-skew ducted propeller calculated by CFD simulation.

The Unsteady Detached Eddy Simulations The in-house flow solver EllipSys3D is used in all computations presented in this paper.
The convective fluxes are computed using the QUICK scheme in the RANS regions while a fourth order central scheme is used for the regions where the DDES model has switched to Large Eddy Simulation (LES) technique.The simulations are computed as transient runs with 1700 time-steps per revolution, and using 12 subiterations in each time-step.
Fig. 4: CL data from the experiments and CFD for case N47350. r/R = 0.47, local K = 0.1.
Detached Eddy Simulation of Massively Separated Flows.
A stochastic model for the simulation of wind turbine blades in static stall.