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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.

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.

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.

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.

Using flow field simulation – efficient method, we can design spiral air intake with CAD from preliminary design to simulation with analysis and optimization.
FLOTRAN (CFD) Analysis The Concept of the FLOTRAN (CFD) Analysis.
Determine Analysis Region and CFD Analysis. 1) Influence of Velocity.
Fig. 2 CFD simulation analyses In helical port, velocity vector increase gradually from upper cross-section to outlet, and negative velocity component at around top wall.
References [1] C J FMcKinley N R: CFD Simulation of in-take Port F10w Using Automatic Mesh Generation: Comparison with Laser Sheet Swirl and LDA Mea-surmounts for Steady Flow Conditions, SAE Paper 980l 29

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.

Simulation and Analysis of Formula Racing Car’s Diffuser Based on CFD Technology Ning Kang1, a, Yang Yang1,b 1School of Transportation Science and Engineering, Beihang University, Beijing, 100191, China akangning@buaa.edu.cn, bkeithyoungrsr@hotmail.com Keywords: Aerodynamics, Lift, CFD, Diffuser Abstract.
CFD technology has been widely applied in automobile engineering, especially race car engineering.
CFD has a series of advantage such as low budget, short period, real time road simulation etc, and also can provide all flow field condition.
The surface mesh of the car is shown in Fig. 4 It is crucial to keep the wheels rotating and ground moving in the simulation, especially when studying the effect of a diffuser.
Gao: Aerodynamic Shape Design of FSC Car Body Based on CFD Technology.

The design of labyrinth channel, the CFD simulation method based on cylindrical channel prototype and the hydraulic performance experiment of the emitter are researched.
In this paper, the CFD simulation of the labyrinth channel was firstly carried out based on the planar model with inlet pressure of 100 kPa and outlet pressure of 0.
So it is necessary to carry on the CFD numerical simulation using the cylindrical labyrinth channel.
It showed that the velocity distribution in the labyrinth channel obtained from the experiment match and verified the CFD simulation in general.
It is proved that the CFD numerical simulation using cylindrical prototype of the labyrinth channel obtained more accurate result than that of using the planar model.

CFD Model Validation for Charging and Discharging of a PCM Encapsulated in Sphere N.
A commercialised computational fluid dynamics (CFD) software is used to simulate the TES model and the result is then compared experimentally, thus validating the simulation model.
It is also found that with the use of the CFD model, one could determine the effective thermal conductivity of the PCM at different temperatures.
The thermal performance of the plain plastic sphere containing PCM was modelled in commercialised computational fluid dynamics (CFD) software namely the Ansys CFX 12-1.
Simulation model of a PCM sphere in the TES tank works well for charging.

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.