Search results

For estimation of aerodynamic characteristics of cable-stayed footbridge deck a computational fluid dynamics (CFD) has been used.
Preliminary determination of simulation parameters have been estimated using laminar fluid flow model.
Subsequently, Smagorinsky large-eddy simulation (LES) turbulent model has been applied with different simulation parameters to obtain converged values.
For computation fluid flow past structures the most used method is computational fluid dynamics (CFD).
LES model is based on direct simulation of large eddies, which occur in space.

Experimental research and simulation in a thermosyphon K.M.
An experimental investigation and CFD simulation of thermal characteristics of heat pipe was presented in this paper.
Tiselj et al.[10] simulated the single phase flow in a 3D model using the CFD code CFX.
In the CFD modeling, the Navier–Stokes equations are solved simultaneously[11].
Results and Discussion Fig. 3 Comparison between simulation results and measured data A comparison between CFD predicted and measured temperature profile along the thermosyphon wall is given in Fig. 3.

CFD simulations and infrared experiments on a high-performance production engine with a dynamometer were carried out.
Simulation Results and Discussion.
The CFD simulation results are shown in Fig.2c, d.
Automotive exhaust TEG experimental system Experimental Results and discussion The CFD simulation results above need to be verified by experiments.
Summary Considering the consistent results between the infrared experimental and the CFD flow simulation, the brass heat exchanger with internal baffles of 3mm thickness, was recommended to form the hot side.

A CFD Methodology for Solid and Liquid Flow Fields Of Sedimentation Tanks Y.
In this paper, the CFD approach is used to study the solid–liquid two-phase turbulent flow in a secondary sedimentation tank.
By simulation and comparison, the velocity profile and solid distribution in a secondary sedimentation tank are given.
Study of Flow Characteristics in a Secondary Clarifier by Numerical Simulation and Radioisotope Tracer Technique.
X., Theory and Numerical Simulation of Turbulent Gas-Particle Flows and Combustion, Science Publication Press, Beijing (1993) (in Chinese)

Flow simulation of transfer station and optimization of skirtboard Bo Zhang CISDI R&D Co., Ltd, 1th Shuanggang Road, Yuzhong Dsitrict,Chongqing, 400013 China Bo.C.Zhang@cisdi.com.cn Keywords: transfer station, dust, skirtboard, CFD, optimization Abstract.
Gas-solid flow in transfer station is simulated with Computational Fluid Dynamics (CFD) method in this paper.
Based on the simulation results of traditional rectangular skirtboard, an optimized skirtboard is proposed.
In this paper, flow in transfer station is simulated with CFD method, and characteristic of flow in traditional rectangular skirtboard is analyzed.
Numerical Simulation Flow in transfer station with traditional rectangular skirtboard, shown in fig.1, is simulated at first.

THE PROSPECT OF THE MODELING SIMULATION FOR THE PASSIVE CONTAINMENT COOLING SYSTEM OF THE ADVANCED PWR IN CHINA Wang Yan1, a 1 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 100084, China awangyanfcw@tsinghua.edu.cn Keywords: Advanced PWR, PCCS, model, CFD Abstract.
Several containment analysis codes are modified for the simulation and analysis on the PCCS by researchers.
The second is numerical simulation for the tests and DBA.
Because of the immense cost of experimental research, numerical simulations have been rapidly developed.
The CFD codes were applied to simulate and analyze the nuclear reactor safety problems with the fast development of CFD.

Flow Field Analysis and Response Surface Research on the Rotor in Dry Powder Inhaler Zhi Chen Caoa, Hao Ying Li*b, Shi Hong Shic, En Long Zhoud Bio-Manufacturing Research Centre, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215021, China aczcycit@126.com, blihaoying@suda.edu.cn, cshishihong@suda.edu.cn,dlufei_1234@126.com Keywords: Dry powder inhaler; CFD; Rotor; Numerical simulation; Response surface Abstract.
The simulation of the suction drive rotor rotation mechanism was based on MRF model in FLUENT.
Numerical Simulation Modelling and meshing.
For simulation, a simplified flow channel is created following the actual size of Spinhaler®.
Comparative simulation of engine cooling fan of mining dump truck based on CFD [J].Coal Mine Machinery, 2012, 12: 026

In order to solve the problem, some scholars use coupling method of mesoscale meteorological model and the small and medium scale atmospheric diffusion model or computational fluid dynamics (CFD) model to carry out regional or small scale wind field simulation, that is, to achieve refinement numerical simulation by using the method of dynamical downscaling.
For instance, National Climate Center [18] carried out a more detailed calculation on wind speed of concerned region by using hourly wind speed simulation results of MM5 as initial field of CFD software, indicating that simulation results of MM5 and CFD method, faster and more economic, are more consistent with observation results, and can be used as one of the wind field simulation methods under complex terrain conditions, which has certain application value.
Besides, Fang [19] also uses WRF mesoscale numerical models coupled with CFD software to carry out researches on the applicability of combined numerical simulation study of mesoscale and small scale mode on wind energy resources of complex topography, indicating that it is feasible to use WRF and CFD method on numerical simulation of complex topography and wind resources assessment, and is more advantageous to make refined regional wind energy resource distribution map.
The simulation results are more accurate than with CFD software only.
Study on numerical simulation of wind energy resources based on WRF and CFD models (in Chinese).

In this study, the fire is modeled using Computational Fluid Dynamics (CFD) software FDS (Fire Dynamic Simulator).
FDS Modelling The fire shown in Figure 3 above is incorporated into the CFD model.
Fig. 4: Smoke layer history at the lounge, corridor and bedroom 2 Fig. 5: FED at the corridor and bedroom 2 Conclusion Terwindle Rest Home fire has been modelled using CFD simulation.
The CFD simulation showed that Fraction Effective Doses reached the value of unity at 950 second (16 minutes from fire growth).
The simulation shows that CFD software can be utilised in fire investigation provided that the correct design fire is used.

Keywords: temperature, cavitation, sliding bearing, CFD Abstract.
The film temperature of sliding bearing considering the cavitation is studied based on the Rayleigh-Plesset (PRE) model with the computational fluid dynamics (CFD) method.
Nevertheless, so far it has been not found that the bearing temperature including cavitation effects is studied using CFD method.
In the simulation, the bearing is meshed with a hexahedron element with eight nodes.
In the simulation, the bearing’s radius, clearance and length are 15, 0.03 and 24 mm, respectively.