Search results

In order to ascertain the design direction and shorten research cycle, in addition to the rapid development of computer technology, it is convenient to use CFD technology to simulate the defrosting process.
In order to simplify the compute process, the simulation was divided into two parts, the one was the steady simulation of air flow field and the other was the transient analysis of the defrosting process.
Analysis and Simulation of Defrosting.
Experimental Measurement and Numerical Simulation on Defrost Performance of Bus Windshield in Chinese[J].
System Simulation Technology, 2011,07(3):190-195 [6] GENG Tie, LI Dequn, ZHOU Huamin, SHAO Yujie, WANG Weijun.  

Flow behavior of gas and particles is predicted by the large eddy simulation of gas-second order moment of solid model (LES-SOM model) in the simulation of flow behavior in CFB.
Then the large eddy simulation of gas-second order moment of solid model (LES-SOM model) is established for the simulation of dense gas-solid flows.
(4) (5) (6) Computed results and anlysis The simulations are carried out with the CFD code M-FIX which previously is used to model the flow in fluidized beds.
There is a reasonable agreement between the experiment and the simulation results.
Large-Eddy Simulations of Turbulence.

Based on the erosion theory and experiment study, the drill pipe erosion is simulated in 3-D turbulence flow flied by Computational Fluid Dynamics (CFD) technology.
Results and Discussion Comparison Experimental Result and Simulation Result.
So the value of average erosion in simulation is greater than that of in experiment.
The numerical simulation model is verified by experimental result, so this model is realistic and can be used for numerical simulation in gas drilling and mud drilling. 0 2 4 6 10 20 30 40 50 60 70 Gas injection/（m3/min） Average erosion rate/（10-4kg/m2/s） Simulation results Experimental datas Trendline of experimental datas Trendline of simulation results Fig. 1 Schematic diagram of drill pipe erosion Fig. 2 Comparison simulation result with experimental data Simulation Result and Analysis Erosion of Drill Pipe in Mud Drilling.
High pressure testing sand erosion in 3D flow channels and correlation with CFD.

Two dimensional CFD analysis of micro patterned surfaces in hydrodynamic lubrication.
Debaets, Experimental study and numerical simulation of the large-scale testing of polymeric composite journal bearings: twodimensional modeling and validation, Tribol.
CFD model for turbocharger journal bearing performances.
CFD simulation of magnetorheological fluid journal bearings.
Simulation Modelling Practice and Theory 19 (2011) 1035–1060

The accuracy of numerical simulations of heat transfer in supercritical fluid may depend on turbulence models.
Previous CFD study [3] using the Fluent code revealed the RNG turbulence model gives reasonable results in predicting heat transfer of supercritical water, therefore the RNG turbulence model was used in this study. u is the velocityvector, while is velocity component in special direction .
Numerical computations were carried out using the popular CFD package Fluent 6.3.26 [5].
Fig. 4 Variation trends of surface HTCs with the inlet LNG mass flow rate Conclusions Three-dimensional computational fluid dynamics (CFD) based modeling and simulation have been conducted to investigate the influence of inlet mass flow rate on heat transfer of supercritical LNG in horizontal tubes.
Bao, Numerical modeling and simulation of condensation heat transfer of a flue gas in a bundle of transport membrane tubes, International Journal of Heat and Mass Transfer. 60 (2013) 41-50

The present paper focuses on a novel Computational Fluid Dynamics (CFD) modeling of mass transfer mechanisms of an inflight molten metal droplet leading to droplet oxidation control during APS.
In these simulations to estimate the oxygen absorption three different size particles of 30mm, 40mm, and 50mm are used.
These CFD computations include Hill’s vortex dynamics in the molten metal droplet to examine how Hill’s vortex control the onsite oxidation of NiAlC molten droplets during APS processes [5], [15], [16].
The domain geometry considered in the numerical simulations was 2D axisymmetric.
For further characterizing it can be seen from Fig. 3b that the experimental result of the carbon content in the coatings is consistent with that of the simulation, proving the credibility of the simulation result.

The steady and unsteady numerical simulations of the inner flow in the fan at different working conditions were presented using the CFD method.
The numerical simulation results were validated by contrasting to the experiment results.
In order to make sure the stability of the unsteady simulation, the steady numerical simulation is done at first based on the same mesh subdivision, after that, the results of the steady simulation are used as the beginning field to proceed with the whole passage unsteady simulation inside the multi-blade centrifugal fan.
Simulation results and analysis Comparison between simulation and experiment.
The P-Q curve based on the simulation result is shown Fig. 3.

The results provide a reference for experiment in water tunnel and the simulation model.
As a result, the numerical simulation of cavity flow develops quickly [4, 5, 6].
Simulation Result.
Tab.1 shows the data of the simulation.
Multi-phase CFD Analysis of Typical Cavitator for Supercavitating Underwater Vehicle [J].

The two-dimensional simulation is found to be very useful for a better understanding of the dynamic adsorption and separation process in an adsorber.
Furthermore, Mohamadinejad et al. [6] used a similar model as Germerdonk’s on the CO2 sorption simulation, where they clearly indicated the breakthrough concentration near the bed wall shortened in time relative to the center of the packed column.
Hence, an additional sink term is added in the momentum equation and the momentum source term is as follows: (5) The energy balance (6) The equation of state (7) Porosity (8) 2.3 Method of solution The simulation is conducted by using the CFD software Fluent where the above equations are solved numerically by the method of control volume.
The simulation visualized the processes of separation occurring inside the adsorber.
Although, only the first cycle of the separation process has been simulated by using the CFD software in this study, it does show its potential in improving an understanding of adsorption separation process and thereby to further improve the separation performance.

The flow field of two cars was simulated numerically in the CFD commercial software of Cradle through computer when lane-changed overtaking based on the overlapping grid and the k-ω SST Turbulence model, and then the aerodynamic characteristics of two cars were obtained.
Dynamic simulation Research of Aerodynamic Characteristics during overtaking and crossing.
On CFD and Transient Flow in Vehicle Aerodynamics.
Development of Underbody Aerodynamic Simulation Using Automatically Generated Tetrahedral and Prismatic Cells.
Transient Aerodynamic Simulation in Crosswind and Passing an Automobile.