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The Distribution of Oil Pressure in Tube Circuit System Although, in present ,many CFD commercial software are increasingly competent for the calculation in precision calculation projects ,we also need to make some assumptions to simplify the calculation in this paper during determining the distribution of axial oil pressure along the flowing direction .But the axial scale length of this oil pipe is short enough at 22 centimeter ,and the oil velocity is so slow, meanwhile the shape of oil pipe’s cross section area is rarely changing along the oil flowing direction .So the oil pressure is changing very little along the oil flowing direction that it can be seen as a constant parameter .
Koeppel, Comparative finite element analysis of the stress–strain states in three different bonded solid oxide fuel cell seal designs [J], Journal of Power Sources Volume 180, Issue 1, 15 May 2008, Pages 343-353 [8]Weihua.PU, Feng Wang, Optimized design of key structural parameter of common rail injector by orthogonal simulation [J],SHIP SCIENCE AND TECHONOLOGY, 2010 Aug Volume 32 No8 2004
[9] Wang Jun，Zhang Youtong,Lin Xiuxia, Design and Simulation on Common Rail Line of High Pressure Common Rail Injection System in Military Diesel Engine [J], Journal of Academy of Armored Force Engineering ,Jun 2008, Vol. 22 No. 3 [10] Chao.Liang, Jianguo.Yu, Study of Pressure Fluctuation of Diesel Common Rail System [J],Chinese Agricultural Mechanizition , 2010 No.1 [11] Arturode .Risi, Fabrizio.

The Effect of Elliptical Form of Cylinder on Free Convection in Annular Space Elhadi Zoubai1,a* and Bachir Bouhamida1,b Laboratory of LSCMI, Faculty of Mechanical Engineering, USTO-MB, BP 1505, El-Menaouer, Oran, 31000, Algeria ahadi_usto@yahoo.fr, bbouhamida68b@yahoo.fr Keywords: Free convection, thermal science, Newtonian fluid, steady simulation, CFD Abstract.
The governing equations are solved for numerical simulations of steady state and laminar regime.
In order to achieve this numerical simulation, the commercial code ANYS-CFX is used.
Kim, Numerical simulation of natural convection in annuli with internal fns, J.
Kamali, Numerical simulation of a non-equilibrium electrokinetic micro/nano fluidic mixer, J.

Mechanism design was made in Catia V5R17, the kinematic analysis on determining the valve lift height by the mechanism actuation were made in MSC.Adams and the engine performance simulations were analysed in Lotus Engine Simulation.
It includes mechanism modeling, dimension analysis and engine simulation with chosen engine specifications.
Engine Simulation Test.
Gasoline was selected as fuel in this simulation.
In-cylinder flow analysis of different valve lift using CFD, Scientific Bulletin Faculty of Mechanics and Technology University of Pitesti, Automotive Series. 2, 21 (2010) 1-5

A thermo-plastic material model was adopted in a simulation of friction stir welding.
The pin used in this simulation is a straight cylinder.
Shercliff, 3-Dimensional CFD modelling of flow round a threaded friction stir welding tool profile, J.
Chen, The finite element simulation of the friction stir welding process, Mater.
Adamus, Numerical simulation of welding thin titanium sheets, Key Eng.

Chen, Thermoaeroelastic simulation of supersonic rudder, Computer simulation 2010 27 (3) 43-46
McNamara, Loosely coupled time-marching offluid- thermal -structural interactions with time-accurate CFD,AIAA Conference, SSDMC 2015 [10] Y.B.

Designers are now able to do complex simulations of the proposed systems in order to achieve the best possible solution with computation fluid dynamics (CFD), daylighting, and thermal transfer programs.
The technology is far advanced, but may not be there yet, as Moloney’s claims that the design simulation to achievable construction is complicated by the kinetic requirement [6].

There are many spectrum sensing techniques, such as energy detection (ED), matched filter (MF), cyclostationary feature detection (CFD), and maximum eigenvalue detection (ME) [4-6].
In Section IV, the simulation results are showed.
Simulation Results In this section, we show the performance of the proposed algorithm and compare with other algorithms by Monte-Carlo simulation.
In the simulation, there are 16 SUs to participate in the cooperative sensing and A=0.5, the number of samples was set to N = 512.
Simulation results show that the performance of MEC algorithm outperforms that of the equal weight and the SNR-weight algorithm.

Table 1 - Climatic regions – simulation inputs.
Figure 9 - Simulation model.
The simulation model was validated using in-situ measurements of air temperature.
Assessment of moisture transfer by numerical simulation, 2007
DesignBuilder Simulation + CFD Training Guide, DesignBuilder Software Ltd., UK

We solve Navier-Stokes equations in the fluid phase and energy equation in both solid and fluid phases using a commercial CFD software: StarCCM4+ by CDAdapco.
Table 2 presents inertial and viscous parameters calculated from present simulation along with available literature data obtained for similar foam.
However, this local simulation gives us a fair insight of thermal performance for heat exchanger unit design.
Conclusion and Perspectives We predict important parameters relative to foam use in heat exchangers using simulation at pore scale on real topology.
Vicente, et al.: Thermal conductivity of metallic foam: simulation on real x-ray tomographied porous medium and photothermal experiments (in 13TH International Heat Transfer Conference. 2006.

The characteristic parameter of each part of the cooling system is relatively complicated during the one-dimensional simulation and calculation with GC-COOL.
Parameter of engine.We use module “Block” to define the engine.Heat dissipating capacity of the water jacket in a certain work condition and performance of water resistance shoule be input to the module.We can get heat dissipating capacity through the heat balance experiment of the engine at rated power.And when parameters of the engine and the pump have already been definitized,water resistance of the water jacket is only relevant to flow rate,so we can get it by calculation with CFD.
(In Chinese) [4] Yu Haiqun.Matching Design and Simulation of The Dynamic Characteristics of The Engine’s Cooling System[D].Nanjing:School of Energy and Power Engineering,Jiang Su University. 2007.
An 1D-3D integrating numerical simulation for engine cooling problem[C].SAE Paper No. 2006-01-1603.2006
(In Chinese) [7] Mahmoud K G,Loibner E,Wiesler B,eta.Simulation-Based Vehicle Thermal Management System-Concept and Methodology[C].SAE Paper 2003-01-0276.