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Finally, steady flow simulations are performed using the CFD solver Fluent.
Introduction Blood flow simulations are helpful in understanding certain phenomena, such as the perfusion of the cardiac pump.
Once adequately meshed, blood flow simulations have been carried out.
Figure.1 Geometrical model and mesh Figure.2 Domain mesh with references Simulation The flow in our model was computed using the software Fluent.

The main objective of this analysis is to evaluate the heat-shielding effects of design layout and operating parameters of helium cooling-pipes with cfd (computational fluid dynamics) techniques.
The main objective of this analysis is to evaluate the effects of ctb thermal shield in design layout and operating parameters of helium cooling pipes with cfd (computational fluid dynamics) techniques.
Therefore the reynolds averaged navier-stokes (rans) equations, in combination with shear-stress transport (sst) turbulence models are used for this cfd analysis.
For solid region, the following 3dimension heat conduction equations are used: (7) CFD Computational Models and Mesh Arrangement A full size model of ctb ts is considered in the cfd study as shown in Fig.3.
(2) An ideal contact (0 contact heat resistance) between panels and helium cooling pipes is assumed in this simulation.

Applying commercial CFD software FLUENT, the cavitation issuing from the orifice was numerically investigated, reducing the harm.
Because of complicated flow field and high-cost experiment, it is important to predict cavitation erosion by numerical technology such as CFD.
In addition, the effect of surface tension weaker than viscosity, compared from the Fig. 3 and Fig. 2. ——0.1 ------0.5 …….0.8 Fig.3 Time evolution of the bubble radius R(t) in liquids of different surface tension. 3.3 effect of temperature on cavitation bubbles The numerical simulations of radius evolution, R, versus t are shown in Fig. 4, which are obtained from Equation (7).
Meehanical Engineering Science.2009,223(C10):2297-2307 [2] Liu Xiaohong,Ke Jian.Noise Appraisement of Hydraulic Poppet Valve Based on CFD Analysis[J].
Three-dimensional CFD study of liquid-solid flow behaviors in tubular loop polymerization reactors：The effect of guide vane［J］.

In addition, along with the rapid development of computer technology and numerical method,numerical simulation becomes a powerful method to study cavitation phenomenon. cavitating flow field was simulated based computational fluid dynamics (CFD) and so on[5,6,7,8].
The numerical simulation was used to simulate the flow field around the hydrofoil.
Hydrofoil model Numerical simulation The flowing fluid media in the model is water, the flow is single-phase flow, so liquid flow in the model can be considered as incompressible flow.
For presented simulation, unstructured tetrahedral mesh, shown in figure 2, is used in the computational domain.
Conclusions The present work demonstrates the possibility of using CFD in improving cavitation phenomenon in hydraulic machine.

As recent studies, fluid flow characteristics in the diffuser-type shrouds of power generation system which is operated by river flow were analyzed, and the turbine efficiency was predicted with the momentum source factors through CFD [1, 2].
Therefore, in this study, flow field characteristics for seawater in various tidal current directions are investigated with numerical simulation which presents the angular velocity and drag force of turbine system. 1.
Numerical modeling In this study, commercial CFD code (Fluent 6.3) is used for the numerical analysis.
Conclusion In this study, numerical analysis by CFD has been performed to investigate seawater flow characteristics and drag force changes in tidal current turbine system with the variation of current direction.
Song, Fundamental study on the HAT(Horizontal Axis Turbine) tidal current power rotor performance by CFD, The Korean Society for New and Renewable Energy. 5 (2009) 3-7.

Numerical simulations are one way to obtain a better and more detailed understanding of the chemical vapor deposition process of silicon carbide.
Using numerical simulations, e.g. computational fluid dynamics (CFD), is one way of obtaining this understanding.
The chemical reaction models are implemented in commercial CFD software and tested in a 2D geometry of a horizontally oriented CVD reactor.
Alternatively, as is done in the simulations here, a deposition model that completely separates the different molecules can be used.
Experimentally, at the conditions used in the simulations, silicon limited growth is expected, at least for C3H8 as carbon precursor.

According to the results of simulation, we investigated the different radiant heat flux parameters, burning losses under different heat release rates and rising rates.
Also, we compared the simulation results with the actual smoke trace and burning rates in fire accidents.
The numeric simulation test in this article applies the FDS [2-4] (Fire Dynamics Simulator, Fire dynamics simulation) software which developed by USA NIST.
FDS is a CFD model calculates the flowing fire driven fluid.
[5] Fu-Jun Wang, Computational Fluid Dynamics Analysis -CFD Software Principle and Application [M].

Study on Numerical Simulation of Gas Explosion inside Compression Compartment of Gas Filling Station Wang yu1, a, Wu yunyi2,b 1Dept. of Safety Engineering, Technology Institute of Sichuan Normal University, Chengdu, China 2Sinopec Gas Branch, Beijing, China a cawn229@sohu.com, b 249369974@qq.com Keywords: Compression Compartment; Gas Explosion; Numerical Simulation; Ignition Source; Abstract.
In this paper, numerical simulation was adopted to build 3D model of compression compartment and simulate gas explosion pressure and flame propagation behavior under different ignition point location, open-pressure and weight of relief panels.
CFD calculation model The finite volume method is adopted to solve N-S equation under 3D Cartesian grid.
However, from the simulation results, the largest explosion pressure in the compression compartment of this case is between 6.7kPa and 60kPa, while the damage pressure of ordinary glass in explosion is 2-7kPa.
Modelling of turbulence and combustion for simulation of gas explosion in complex geometries[D].

., Centrum excellence Telc, Batelovska 485, Telc, 58 856, Czech Republic avladimira.michalcova@vsb.cz, bkuznetsov@itam.cas.cz, clenka.lausova@vsb.cz, diveta.skotnicova@vsb.cz Keywords: aerodynamics, wind tunnel contraction, CFD Abstract.
Suitable numerical models were chosen on the basis of experimental results to define the theoretical flow characteristics of a simulation process in the enclosed chamber of the nozzle.
Skotnicova, Analysis of experimental measurements and numerical simulations of a heat field in the light weight building structure, Advaced Materials Research, 2014, Vol. 969, pp. 33-38
Kozubkova, Investigation of viscous fluid flow in an eccentrically deposited annulus using CFD methods, In: Proceeding of the 8th International Conference on Experimental Fluid Mechanics, 2014, Kutna Hora, Czech Republic

The simulation results indicate that depending on the height of the epitaxy room (h), the ∆T/mm can be changed from a negative to a positive value.
Simulation studies were also carried out to understand and optimize the gas flow and thermal behaviors.
A three-dimensional simulation of gas flow, heat transfer, radiation and magnetic field was performed to understand the gas flow behavior and thermal distribution in the reactor.
CFD-ACE+ software [6] was used for the simulation.
The three-dimensional simulation results indicate that gas flow behaviors and ∆T/mm values can be controlled depending on the h value.