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On the effect of Slotted Blades on Savonius Wind Generator Performances by CFD analysis A.
Computational Fluid Dynamic Analyses To investigate the overall aerodynamic performances of Savonius wind turbines with slotted blades and buckets overlapping (see Fig. 1), Computational Fluid Dynamics – CFD analyses are performed by using the commercial code Comsol Multiphysics®.
The results obtained through the present CFD model are compared with those obtained by Akwa et al., who employed numerical solutions [13], and by Blackwell et al., who performed experimental studies [12].
Thus, parametric numerical simulations have been performed on the slotted blades configuration for both static and dynamical conditions.
Validating simulations The validating analyses have been performed on a Savonius wind turbine with blades overlap only whose geometric characteristics and flow conditions are those used by Akwa et al. and Blackwell et al. [12, 13].

In this paper, CFD simulation technology is used to analyze the characteristics of pressure drop in the empty bed.
The simulation results are compared as Fig. 3.
By contrast, porous media model can replace distributor model in fluidized bed simulation. 6 Summary Simulations are carried out to compare pressure drop feature with distributor and porous media model.
The relative error is only 1.16% in the simulation of this paper.
[3] Depypere F, Jan G Pieters and Koen Dewettinck: CFD analysis of air distribution in fluidised bed equipment [J].

Numerical simulation was performed usingAnsys-CFX software with the assumption of Newtonian fluid and laminar condition.
The simulation result showed that wall shear stress distribution increased after the fluid passing through the step.
The flow profile analysis from 3D Computational Fluids Dynamics (CFD) showed efficiency of wall shear stress profile reacting on the spherical cell model in the crescent trap [2].
The simulation was implemented in steady state with laminar condition.
The step height employed for the simulation is 1µm with Reynolds number of 500.

Simulation for Gas-Membrane Interaction of Folded Membrane Tubes During Inflation Jianzheng Wei 1,2, a, Ruiqiang Ma 1, Huifeng Tan 1,b, and Xingwen Du 1 1Center for Composite Materials, Harbin Institute of Technology, Harbin, 150080, China. 2Post-doctoral Research Center in Materials Science & Engineering, Harbin Institute of Technology, Harbin, 150080, China.
And then, the gas-membrane interaction is calculated by couple the CFD and CSD solver.
Gas-structure interaction problem is one of the challenging problems in numerical simulation, which is still on the initial stage.
The strong coupling method need solve CFD and CSD Equation in same time and spatial domain, and mesh system needn’t information exchange.
In weak coupling method, solve the aerodynamic and structural deformation by CFD solver and CSD solver, and transfer relevant data through a third party program or software.

The CFD Model The Mathematical Model The governing equations are two-dimensional axisymmetric, compressible Navier-Stokes equations.
Boundary Conditions How to handle the boundary conditions is one of the most important parts of numerical simulation.
In this paper, the CFD numerical results on the design points are used to build the response surface to reduce the calculation for searching the optimal results.
Results and Analysis 45 design points (DOE points) are generated based CCD method, and 38 verification points are chosen randomly to calculate by CFD method.
The horizontal axis indicates the results of CFD, and the vertical axis indicates the results of prediction of the response surface.

Computational fluid dynamic (CFD) analysis method is applied based on the theory of multiphase flow macroscopic continuum.
CFD analysis results show that the impact parts amplified the solid signal caused by the acoustic emission in multiphase flows.
CFD (computational fluid dynamic) analysis method is applied based on the theory of multiphase flow macroscopic continuum.
The simulation values are the same with theoretical analysis to verify the accuracy of the experiment.
The results of this experiment are in accordance with the acoustic emission energy model of solid phase particles, and are also consistent with the CFD simulation calculation results with the same sand particle size.

It is needed to simplify the simulation model.
Analysis on Fluid Field Simulation of Multi-gear Pump[J].
A novel CFD-Axial motion coupled model for the axial balance of lateral bushings in external gear machines[J].
Simulation Modelling Practice and Theory. 2012(26): 60-76
CFD Investigation of Gear Pump Mixing Using Deforming/Agglomerating Mesh[J]. 2007, 129(4): 476-484

The CFD problems over TM wings were solved based on steady and incompressible turbulent flow in Ansys-CFX solver.
The CFD study was highly focused on CL, CD and CM distributions on TM wings.
The details of Ansys-FSI computation and boundary conditions setups for CFD and CSD solver is found in the references [1,5].
Fully coupled FSI simulation method is summarized in Fig 1.
Figure 2 Fully coupled FSI simulation method Results and Analysis Lift Coefficient (CL).

., computational fluid dynamics (CFD) and heat transfer techniques had been widely adopted to comprehend the complex transport phenomena in the various types of catalyst bed [6,7].
Methodology and Simulation Model The reactor vessel and static mixers used in the simulations adopted from part of the on-going BTL research carried by the Research and Development Center for Chemical Engineering Unit Operations and Catalyst (RCC) at King Mongkut’s University of Technology North Bangkok [12].
The packing applied in the simulation as shown in Fig. 2 was an only one realization among all possibilities.
Ranade, Improve reactors via CFD, Chem.
Jiamrittiwong, Simulation of the Flow in a Packed-Bed with and without a Static Mixer by Using CFD Technique, Proceedings of world academy of science, Engineering and Technology, Vol. 41 (2009), p. 875-880

Solidworks has been used to design and simulation as well.
In this report not shown everything, only a fraction to show simulation results.
Fig. 3, 4, 5, and 6 are examples of simulation results.
Considering the results of fisual of simulation models, further described the results of the change of gas pressure in the combustion chamber.
CFD Analysis of Gas Exchange Process in a Motored Small Two-Stroke Engine, J. of Applied Science 11(1) (2011) 36-45