Search results

Wang [3] used CFD to solve lubrication questions.
The suitability of CFD approach was discussed.
Applied the 2D model boundary condition, we can get: (4) Figure 2 Simplified model of 2D tapered gap CFD Simulation of 2D Tapered Gap The method of numerical simulation Numerical simulation is to solve the sequence equation, the momentum equation and the energy equation by dispersing the conventional N-S equations using finite volume method.
Figure 3 Computational domain of journal bearing Simulation of direction the magnitude of force Simulate the 2D model of tapered gap using CFD, define the left and the right port as export, the number of the grid is 700000, the comparisons between numerical simulation results and theoretical analysis result of equation (4) shows exiguous difference between numerical simulation results and theoretical analysis result exists, and the maximal value of numerical simulation results is littler than theoretical result, it is because the hypotheses been defined in the process of theoretical computation result in the distortion of numerical results, CFD solves the equations directly and can simulate the 3D complicated structure, so CFD has more precision and practicability than theoretical calculation method.
The comparison between the result of bearing’s numerical simulation and reference [14] shows that the load of bearing equals 30.2N using CFD, and this result shows good match with reference.

Numerical Simulation of the Odor Spreading in a Factory Cui cheng xun1, a 1 College of Engineering, Yanbian University, Yanji Jilin 133002，China acuichx@126.com Keywords: LCD, Coater Room, Bleed duct, CFDS Abstract.
One of the best tools to evaluate smoke management system performance more accurately for large-volume spaces involves computer simulations based on Computational Fluid Dynamics (CFD).
Simulation The actual combustion process is not as important as predicting the effects of smoke and heat in the space and how to best manage it.
Fig.1 shows the full scale 3D CFD domain with boundary conditions.
Simulations were done to study the effect of each duct independently and it was found that for cases III & IV (Table1) gave better performance in bleeding out hydrocarbon gas.

Recent advancements in CFD techniques have enabled precise simulations of aerodynamic forces, demonstrating that CFD can provide insights comparable to traditional methods while being more efficient [19], [20].
Boundary Condition and Inputs Essential to any computational fluid dynamics (CFD) simulation is the definition of boundary conditions.
Grid independency study for coefficient of lift at zero angle of attack The study's results demonstrate a strong correlation between CFD simulations and experimental data.
The initial goal of replicating experimental behavior through CFD simulations has been achieved.
Chen, “Time-Accurate Simulation of Longitudinal Flight Mechanics with Control by CFD/RBD Coupling,” Appl.

Multi algorithm in CFD software and its application to Numerical simulation of 2D regular wave Li Hanwu,Yang Tao Luoyang Institute of Science & Technology E-mail: lihanwuly2012@126.com Abstract.
Fluent is a popular CFD software package now, it can model complicated fluxion question from incondensability to the highly condensability.
The simulation results well reflect the characteristics of the regular waves, agreed well with theoretical value.
Introduction Computational Fluid Dynamics CFD software is a strong international field of study, Fluent software is most popular commercial software used at home and abroad.
Simulation framework Figure2.

Numerical Simulation of Performance of Steam Ejector Influenced by the Distance between Nozzle Outlet and Mixing Chamber Inlet Dai Xiao-chuna, Liao Guo-jinb Liaoning University of Technology,Liaoning Jinzhou 121001,China adxiaoch@sohu.com bliaoguojin@163.com Keywords: Steam ejector; FLUENT; CFD; numerical simulation; distance; nozzle outlet Abstract.
CFD model Gambit 2.1 and FLUENT 6.2 were used as the grid generator and the CFD solver.
The numerical simulation results of 2-D model was very closed to the 3-D model[2].
During the simulation, the primary fluid saturated temperature was 130.
It is obvious that the CFD results agree well with actual value.

A new discrete chemical plume model based on CFD was established, which avoids the shortcomings of the current model.
Tianjin University, 2007. ] using Computational Fluid Dynamics (CFD), all are simplied to be easier sloved.
Three-dimensional simulation of pollutant dispersion in coastal waters[D].
Numerical simulation analysis of chemical plume Applying the discrete chemical plume model based on CFD, the turbulent flow was computed in the software FLUENT, while the final concentration distribution was computed using MATLAB.
The simulation results can serve as the basis of plume tracking algorithm research and simulation platform, which provides backgound for further research on chemical plume tracking.

Detailed Heat Transfer Modelling & Optimisation of a Forced-Convection Kiln using CFD methods H.
Considering the real flow conditions in the kiln the simulation goal was to examine the flow conditions in the heating zone at the wire’s plane with respect to the key parameters gas velocity and temperature.
The CFD modelling of the kiln is based on a finite volume approach.
Regarding the computations the commercial CFD code AVL Fire was used which is well appropriated for the simulation & analysis of complicated flow phenomena considering complex flow domains [8].
A smoother distribution of the key parameters velocity and temperature could be found in the simulation of the final kiln design for both kiln units.

Numerical Simulation of Dynamic Response of Planing Craft Sailing in Calm Water Yu-min SU1, a, Yun-hui LI 1,b * and Hai-long SHEN1,c 1Science and Technology on Underwater Vehicle Laboratory, Harbin Engineering University, Harbin, China asuyumin@hrbeu.edu.cn, bliyunhui12@126.com, cshenhailong@hrbeu.edu.cn Keywords: Planing craft, Sailing attitude, CFD, Numerical prediction, Resistance performance.
After compared with the experiment video, flow field calculated by CFD method agrees with experiment situation, CFD method is able to simulate the sprays from both sides of the craft.
However, there is still difference between experiment video and CFD results as the speed increasing.
(2) When performing numerical simulations, there is still difference between RANS turbulence model currently used and experiment results, which is a universal problem currently remained in the study of CFD methods.
[4] Jia Liping, Kang Shun, Hydrodynamic simulation of high speed air crafts in the sea using the FINE/Marine software.

Applications of computational fluid dynamics (CFD) techniques for desktop computers and server simulations are addressed in the literature by several authors.
A CFD model was created using Flotherm simulation software, and it was concluded that both the HDDs and the CPU were operating at the allowable temperature limits.
Server Description and Simulation Methodology For verifying and validating our CFD simulation methodology, we used as a case study the Gigabyte R261-3C0 server; its structure and main components are shown in Fig. 1(a).
Comparison of temperature contours, (a) thermographic testing, (b) CFD simulation.
Conclusion and Future Works A computational model was built and validated using CFD techniques for the thermal simulation of the Gigabyte R261-3C0 server.

Simulation of such a case - tight separating two flow spaces, which then by the movement of the valve elements have been connected to each other is not an easy task, because none of commercially available CFD software simply do not allow it.
The simulation begins with loading geometry of the valve in the position tightly closed.
All CFD simulations done for this work were made using the software Flowizard (steady state simulations) and ANSYS CFX (transient simulation).
In order to reduce the pressure drop in considered directional valve, firstly CFD simulations were carried out original construction of the valve.
On the basis of CFD simulation, it was found that the modernization of the valve reduces pressure drops by 33 [%] for both ways, and has been proven in research on the test bench.