Search results

Good correlation has been found in drag values and the flow patterns obtained from towing tank tests and CFD simulations.
This can be seen in the simulation results of drag shown Fig 16 wherein the simulation was run till it converges to a steady drag.
The flow patterns at 9 kmph obtained from experimental testing and CFD simulation are shown in Fig 20 and Fig 21 for comparison.
Sample Error Calculation: Experimental Drag value for 8kmph is 528 kg and the value obtained from CFD simulation is 484.2 kg.
The smoother surface in CFD simulation might have resulted in generation of lesser viscous drag.

The paper deals with modeling and simulation of methane flow through the porous environment using the CFD (Computational Fluid Dynamics) software Fluent.
For this purpose, we can use the technology of numerical flow simulation, globally referred to as CFD software, whose use in the mining area is still something new and, as a matter of fact, an unexplored opportunity for improving the prevention of methane leakage.
For this reason, it is advantageous to use the CFD software.
Without the use of numerical flow simulation (commonly referred to as CFD software) we virtually cannot depict and learn the situation underground.
In this first step, we were primarily concerned with verifying and demonstrating the suitability of CFD software for modeling and simulation of natural phenomena influencing the changing amount of methane vented from the underground under varying atmospheric conditions.

Effects of Circular groove angle on Static Characteristics of journal bearing Using CFD Method Liu Hean Hunan city university,China Email:33894549@qq.com Keywords: Journal bearing, CFD, Groove, Oil film pressure Abstract.
Lin C[5] study the viscosity-temperature effect on journal bearing, and he pointed out that viscosity-temperature effect could not be neglected in simulation of journal bearing oil film.
In this paper CFD simulation of a journal bearing used for ship shaft was carried out, and the circular groove angle (CGA) effects were discussed.
Descombes CFD model for turbocharger journal bearing performances.
The Numerical Simulation of Pure-Oil Lubrication Journal Bearing.

That is to say, the non-deterministic simulations can improve the predictive reliability of the simulation process [2].
‘Non-intrusive’ and ‘intrusive’ are the two different ways of coupling non-deterministic simulations with a CFD solver.
For a non-intrusive method, the existing deterministic CFD solver can be used as a black box [4], which saves a lot of labor to modify the code and prevents introducing new numerical error sources into CFD simulations.
Lacor, , “Assessment of intrusive and non-intrusive non-deterministic CFD methodologies based on polynomial chaos expansions,” International Journal of Engineering Systems Modeling and Simulation, 2, 2010, pp.87–98
[6] X.D.Wang, “CFD simulation on complex flows in turbomachinery and robust optimization of blade design,” Ph.D Thesis.

This involved carrying out simulations to select the most effective wind catcher geometry.
CFD simulations of wind-driven ventilation and evaporative cooling in buildings Although much experimental investigation and one-dimensional numerical modelling of evaporative cooling have been carried out in recent years, studies which investigate wind-driven passive evaporative cooling in buildings using CFD methods are relatively uncommon in the literature.
Recent research [9], described experimental measurements and a simplified two-dimensional CFD simulation of an existing building which had been modified to incorporate a passive downdraught evaporative cooling shower system.
The CFD simulation which used the CFD software AMBIENS, is not described in detail, with no information on boundary conditions, or on mesh quality or turbulence modelling being provided.
This quality of boundary layer modelling was considered to be acceptable in these simulations.

By the simulation, the pressure, velocity and component mass fraction can be easily obtained at different time and position, which is very important for the analysis of equipments in chemical engineering.
Introduction Computational fluid dynamics (CFD) is a very flourish field in the last decade since the software of CFD becomes more and more popular in the engineering.
But, CFD is limited in chemical engineering in a way because mass transfer has not been combined with CFD properly at present.
OpenFOAM is a free, open source CFD software package produced by OpenCFD Ltd.
From the simulation, the pressure, velocity and mass fraction can be obtained at any time and any position technically, which is very important for the analysis of equipments in chemical engineering.

This paper describes simulation of combustion characteristics under high ambient and high injection of biodiesel combustion by using CFD simulation.
This paper reviews on Computational Fluid Dynamic (CFD) software used by the researchers to get the simulation result of combustion characteristics.
The result can be obtained by using simulation of CFD apart from producing the result by RCM.
CFD simulation uses in package of ANSYS 14.5 which comprises various models and sub-models that being drawn using Solidwork software.
The result obtained by using the simulation of CFD.

A computational fluid dynamics (CFD) model is used to investigate the droplet formation and deformation under the influence of different parameters.
Computational Model To better understand the flow behavior of droplet formation from jet breakup during the prilling process, a detailed computational fluid dynamics (CFD) simulation is performed using commercial software Fluent 14.0 (Ansys.
Fig. 5 Drop size with different inlet velocities Conclusion Based on the VOF method, CFD simulations of prilling droplet formations are obtained.
Witting, CFD analysis of fuel atomization, secondary droplet breakup and spray dispersion in the premix duct of a LPP combustor.
Alamdari, Simulation of urea prilling process: An industrial case study.

The drag reduction characteristic of air deflector of a heavy-duty vehicle is examined through CFD simulations and wind tunnel test in this paper.
The CFD model of the truck is built using the FLUENT software and the simulation results are compared with the wind tunnel test data to verify the accuracy of simulation model.
CFD Simulation of the Heavy-duty Vehicle Geometric Model of the Heavy-duty Vehicle A heavy-duty commercial vehicle made in China is selected in this research.
Fig.1 Three-dimensional view of the vehicle CFD Simulation Setup The three-dimensional flow field around the heavy-duty vehicle model was numerically simulated using Fluent 6.3, a commercial CFD software.
The error between the test and simulation is less than 5% and the CFD model of the vehicle is believable.

The sampling inlet was conducted using the CFD to perform a flow simulation.
It is suggested that CFD simulation can be useful for improving the optimum a shrouded aerosol sampling inlet.
Results and discussions A computational fluid dynamics (CFD) program, FLUENT 14.0 (ANSYS Inc.), was used to optimize aerosol sampling inlet design[8].
Conclusion A shrouded aerosol sampling inlet has been simulation for use on aircraft.
ANSYS ICEM CFD grid division technology and its examples.