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Finite Element simulations are performed to obtain a virtual approval of the component geometry, in advance with respect to the component manufacturing.
In this contribution, thermal loading effects are investigated via non-linear Finite Element simulations, on the fatigue strength of a eight cylinder V-type turbocharged engine for automotive applications.
Time histories of the temperature distribution are superposed to the mechanical loads acting on the exhaust manifold in order to evaluate stress and strain distributions via non-linear Finite Element simulations.
Modelling Strategy The simulations consist in decoupled thermal and mechanical quasi-static Finite Element analyses.
In particular, heat transfer coefficients and gas temperatures are applied to the inner surface of the manifold, based on previous CFD simulations.

Study on the external insulation system with curtain wall for fire prevention based on numerical simulation Miao Zhang1,2,a, Wenhua Song1, Zhaopeng Ni3 and Xin Huang3 1Environment and Chemistry College, Tianjin Polytechnic University Tianjin, 300387, China 2Hebei District Fire Brigade,Tianjin, 300100, China 3Tianjin Fire Research Institute of Ministry of Public Security,Tianjin, 300381, China azhangmiao713@126.com Keywords: building curtain wall; external insulation system; fire protection; FDS; numerical simulation Abstract.
Heat insulation effect of three fire prevention construction Numerical simulation of external insulation system fire A.
Simulation tool FDS is a computational fluid dynamics (CFD) model whose simulation object is fluid motion in fire.
This model uses numerical method to solve N-S equation of low Mach number flow simulation driven by fire buoyancy, and focus on the calculation of smoke and heat transfer process [5].
Simulation results are displayed dynamically by Smokeview software, and its correctness and validity have been validated by a large number of experiments and practical application.

The results of numerical simulation show that the roll motion has greater influences on the system comparing with sway and heave, the amplitudes of sway and heave are small.
Numerical simulation and analysis on the crane-system with a floating base The origin of the body-fixed coordinate system of the crane-system with a floating base shown in figure 3 coincides with the mid-point of the waterline when the floating base is still according to literature [13], theaxis points to the bow, theaxis points to shipboard, and theaxis points downward.
Tab. 1 The mass and dimension of parts in the crane-system with a floating base No. parts mass(kg) lengthwidthheight (m) ① wharf boat 250 ② counterweight 15 ③ crane-arm 5 ④ weight 10 The motion response and the force of the anchor chains of the crane-system with a floating base are obtained under conditions of wavelength and.The added mass coefficients (listed in table 2) and the damp coefficients (listed in table 3) under both conditions are calculated by use of CFD software.
Fig.8 The force of the anchor chains in sway Fig.9 The force of the anchor chains in heave Fig.10 The force of the anchor chains in roll Fig.11 The force of the cable Conclusions According to the simulation to the crane-system with a floating base under the action of waves, several conclusions can be obtained as follows: (1)The sway and heave displacement of the crane-system with a floating base increases with the wavelength, the sway and heave amplitude are small because of the action of the anchor chains and the water, and the heave amplitude is nearly zero
Dynamic Simulation of Crane Hoisting under the Action of Regular Waves.

With the convective heat transfer theory, numerical analysis of fluid-solid-heat coupling is implemented for the engine combustion chamber cooling structure based on finite element method and computational fluid dynamic method, thus to obtain valuable simulation results.
And it has been successfully applied to numerical simulations of two dimensional airfoil aerodynamics [12].
Numerical simulation and optimization on heat transfer and fluid flow in cooling ineering and Software, 2006, 23 : 907-921
Numerical aerodynamic simulations of a NACA airfoil using CFD with block-iterative coupling and turbulence modelling.

It drew the attention of the CFD area in the simulation of flows in complex geometries and in particular porous media [5-6].
Phase change treatment To solve the phase change problem, a fixed grid approach is used, similar to the principle used for the enthalpy formulation when considering continuum media [9, 10] particularly successfully used for directional solidification simulation [11, 12, 13].

In 2000, Fu Xin used CFD method to research the fluid oscillation characteristics of swirlmeter in oscillatory flow, therefore he proposed the symmetric differential signal treatment method to resist the vibration.
On this basis, he proposed a new method to resist the interference of flow field pulsating which is based on phase discrimination, and obtained the simulation results.
Flow Measurement and Instrumentation.1999, 10: 183~188 [5] Fu Xin, Yang Huayong: Study on mechanism of hydrodynamic oscillation in vortex precession meter using large eddy simulation.

(a) rectangular acvity (b) streamlined acvity 1 (c) streamlined acvity 2 Fig. 2 Two-dimonsional simplified models of sensitive cavity of three structures Solve with Finite Element Method The FLOTRAN CFD analysis of ANSYS software is an advanced tool used to study two-dimensional and three-dimensional flow field, which can be used to analyze the movement of air in cavity [5].
This simulation typically comprises modeling, loading and solving
Wang: Numerical Simulation Technology of Practical Engineering and its Practice (Northwestern Polytechnical University Press, Xi’an 1999).

The influence of materials on the thermal behavior of the complete system is investigated by simulation [15].
The simulation results of temperature field distribution with ANSYS are shown in Fig. 2.
Therefore the r ANSYS simulation can be used for the thermal design of MCM, it is especially convenient and visualize.
Zhou, “Finite Element Simulation for 3-D Thermal Analysis of MCM,” Microelectronics, vol. 35, no.4, pp.371-374, Aug. 2005
Lee et al., “Application of CFD technology electronics thermal management,” IEEE Trans.

The technique of the large eddy simulation (LES) is a good approach for turbulence modeling which involves spatial filtering of the Navier-Stokes equations.
The spray simulation used in this work is based on DDM approach using the three dimensional CFD code KIVA3V-LES.
All the simulations without ATKE model show longer liquid penetration length than experimental data.
Using large eddy simulations to study diesel DI-HCCI engine flow structure, mixing and combustion: Madison: University of Wisconsin, 2007
KIVALES:Large-Eddy Simulations of Internal Combustion Engines.

It has three important features comparing with the other conventional CFD models: (i) the convection operator (or streaming operator) in phase space (or velocity space) is linear.
A parabolic inlet velocity profile for flow entering to the channel was assumed for the present simulations.
Computational simulations were performed for Re = 300, and the grids are 120´120.
A two dimensional D2Q9 BGK model was used in the simulation.
In order to confirm the accuracy of the present LBM simulations, we also did the work.