Search results

Computational fluid dynamics (CFD) simulation is one of the most valid methods to investigate TiCl4 gas phase oxidation.
CFD analysis becomes one of the most important tools in aerosol area and is used by many experimentalists who would previously rely on experiment to uncover fluid phenomena [1], they now use CFD to achieve their goals more rapidly with less cost.
However, the CFD simulation study based on the theory of fluid dynamics is not involved.
CFD: Progress and problems.
A coupled CFD-population balance approach for nanoparticle synthesis in turbulent reacting flows.

Computer Simulation on Key Structure Parameters of Foam Generator for Dust Control in Underground Coal Mines Hetang Wang1,2,a, Deming Wang1,2,b, Wanxing Ren1,2,c 1Faculty of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, China 2Key Laboratory of Gas and Fire Control for Coal Mines(China University of Mining & Technology), Ministry of Education, Xuzhou 221116, China awhtcumt@gmail.com, bdmwcumt@gmail.com, cwxrcumt@gmail.com Keywords: coal mine; dust control; foam generator; structure parameters; CFD Abstract.
Aiming at designing the key structural parameters of foam generator scientifically, the velocity and pressure distribution of foam generator under different parameters were simulated and displayed by CFD (Computational Fluid Dynamics) software.
Aiming at designing the key structural parameters of foam generator scientifically, this paper simulated and displayed the velocity and pressure distribution of foam generator under different parameters by CFD software after presenting the design idea for a new type of foam generator.
The CFD Simulation of Foam Generator’s Key Parameters The velocity and pressure distribution of vortex flow in foam generator can be observed directly by CFD simulation software.
Converting the syntagmatic relation of them, the simulation results can be showed as Fig. 1.

CFD Application for Performance Based Safety Verification of Reinforced Concrete Beam in Computer Simulation Building Fire Chia-Chun YU1, Shih-Cheng WANG2, Cherng-Shing LIN3 and Te-Chi CHEN4 1~4 Department of Mechanical Engineering Yuan Ze University Taoyuan, Taiwan 32003, R.O.C email: jjy5418@gmail.com Keywords: Fire, Reinforced concrete beam, Numerical simulation, Field model, FDS.
Therefore, computational fluid dynamic (CFD) integration to simulate fire scenarios has been widely utilized in fire protection engineering.
Therefore, CFD models have been developed to investigate building structure safety after a fire.
This study utilizes fire model FDS and CFD code PHOENICS software to investigate temperature distribution of RC beams during a room fire.
The PHOENICS is a general CFD code using Reynolds Averaged Navier-Stokes (RANS) method to investigate fluid flow, heat flow, chemical reaction, and stresses in solids.

Research on CFD of Fluidization of Biomass Waste Fast Pyrolysis Reactor Rui Li a, Liangjing Jingb and Mingming Hec College of Materials Science and Technology, Beijing Forest University, Beijing 100083, China aboxlr@126.com, bliangjing777@163.com Keywords: Pyrolysis; Fluidization; Simulation; Reactor.
The understanding of computational fluid dynamics (CFD) of its fluidized bed is necessary basis for particulate heat transfer and pyrolysis kinetics research.
Therefore, the CFD method and values of parameters used in this paper can apply to the calculation of fast pyrolysis fluidized bed reactor.
Fig.4 Simulation results on the pressure Fig.5 Experimental data on the pressure Simulation results under the cold state.
The simulation results of the pressure in the reactor are in good agreement with the simulation results and experiment data, and the resultant error is lower than 10%.

Simulation using Computational Fluid Dynamics (CFD) for both cooling systems has been carried out to have better understanding.
CFD results are compared with some of the analytical results.
Two working fluids were considered for both analytical and CFD simulation, i.e., water and ethylene glycol.
Computational Fluid Dynamics (CFD) simulation is carried out for liquid cooled plate heat exchanger.
For water flow, the simulation results for five different mass flow rates were compared with analytical results (Table 3).

China (Harbin) 1, 2Deep Water Engineering Research Centre (Harbin Engineering University) ashahkhalidshah@yahoo.com (corresponding author), bzhangliang@hrbeu.edu.cn Keywords: Tidal energy, Vertical axis tidal turbine, Renewable energy, CFD, CFX simulation, Variable pitch Abstract.
The modeling and meshing of turbine rotor is performed in ICEM-CFD.
ICEM CFD is used to model a rotor domain, blade domain and stationary fluid domain.
Discussion & Conclusion A comprehensive CFD study is carried out for variable pitch VATT in ANSYS CFX, and numbers of hydrodynamic parameters are studied.
Airfoil optimization of vertical-axis turbines based on CFD method. 2nd International conf. on computer modeling & simulation (2010), p.199-202

Investigation of a Micromixer for the MTPV System CHENG Guanggui 1,a, DING Jianning 1,2,b and LING Zhiyong 1,c 1Center of Micro/ Nano Science and Technology, Jiangsu University, Zhenjiang Jiangsu 212013, China 2Changzhou University, Changzhou Jiangsu 213016, China aggcheng@ujs.edu.cn, bdingjn@ujs.edu.cn, czhyling@ ujs.edu.cn Keywords: micromixer, CFD simulation, MTPV system Abstract.
The optimal structure parameters were investigated by computational fluent dynamical software (CFD)，during the simulation, three main parameters n,τ and δ were introduced to studied on the influence of the mixing intensity.
As we all know that the optimal mixing rate of H2 and O2 is 2:1, so we use these mass flows as simulation parameters.
We observe the situations of τ=0, 0.25, 0.5 and 0.75 through the simulation process.
At last，a micromixer was fabricated with optimal parameters based on the simulation results.

CFD simulations are performed independently to calculate pressure histories, then they are subsequently mapped onto structural FE models as input loads.
In this approach, the pressure field generated by the blast wave is first computed through computational fluid dynamics (CFD) simulations, capturing the effects of confinement.
In this method, the pressure field, p(x, y, t), representing the blast load on a structure is obtained either through empirical models or via computational fluid dynamics (CFD) simulations that focus solely on the fluid domain.
In this work, CFD simulations are carried out using blastFoam [8], a new, entirely open-source toolbox based on OpenFOAM.
Complementing the CFD analysis, FE simulations are conducted using Abaqus/Explicit, that was chosen primarily for its flexibility in accommodating user-defined Fortran subroutines, which enable the implementation of customized material models and the integration of CFD-derived pressure histories into FE analyses.

So it is critical to have temperature rise analysis for hot spot and prediction in the period of prototype design using finite element method, such as CFD.
Relative to method of thermal-network, CFD has provided more accurate air convection model and different boundary condition definition, thus it could be an original data for other serial product simulation.
The development tasks were carriedout by intensively using FEM simulation tools.
Figure 1Boundary condition and mesh Simulation results.The static and transient simulations are done.
Figure 5 Compare between experiment and simulation in location3# Transformer simulation with grilling Boundary conditions.

China,471009 aquyinhu@sina.com, bquyinhu@xpu.edu.cn Keywords: Hema-type nozzle, inner channel, numerical simulation, Fluent,Gambit, optimal design Abstract. the inner flow fields of twelve Hema-type ATY nozzles which have different structure and parameters are simulated by the Fluent software, which is based on the CFD (Computational Fluid Dynamics) theory.Then the simulation results are analyzed，through wich the best designed nozzle is determined.
At present time, FLUENT is one of the best modern CFD software which can be used to simulate the inner flow filed of nozzle[2,3].
In this paper, the inner flow fields of twelve different Hema-type ATY nozzles which have different structure and parameters are simulated by the Fluent software, which is based on the CFD (Computational Fluid Dynamics) theory.Then the simulation results are analyzed，through wich the best nozzle is determined.
Simulation of the Inner Flow Field of Hema-Type ATY Nozzle.
One Validation Case of the CFD Software Fluent: Part of the Development Effort of a new Reactor Analysis Tool, Proceedings of International Conference on Nuclear Engineering, ICONE, 2002; 913-919