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CFD (Computational Fluid Dynamics) software was applied to analyze the major influencing factors of the robot’s mechanical properties.
In this paper, a CFD software - Fluent is utilized for the fluid-structure interaction (FSI) simulation.
Parameter settings in the simulation.
Characteristic parameters simulation.
, could be confirmed by simulation or experiment.

CUDA based Numerical Simulation of Cavity Flow and Performance Analysis Xiaoping Li1, a, Hongming Zhang1,b 1Department of Engineering Mechanics,Kunming University of Science and Technology,Kunming 650500,P.R.China alxping@myopera.com, bCorresponding author:hmzhang8888@126.com Keywords:cuda , cfd , finite volume method, gpu computing, cavity flow Abstract.Cuda has been widely used in computational fluid dynamics due to the powerful abilities of floating point arithmetic on gpu.This paper solved the Navier-Stokes equations of two dimensional incompressible flow using parallel programming on cuda.
The finite volume method and the second-order upwind discretization scheme were used in the simulation.The speed of serial c program and the cuda based program were compared and we also compared the two programs on different hardware.The simulations got high precision results,which showed that the cuda based parallel computing is much more efficiency,and the parallel algorithm could get a more than 10 times the acceleration.
The finite volume method the second-order upwind discretization scheme were used in the simulation.And the efficiency of c program and the cuda based program were compared and the result was also tested on two different hardwares .
Simulations result Both the c program and the cuda program were tested on two computers.The hardware information is list aa blow: Computer1:Intel Pentium 2*2.0GHz+ Nvidia Geforce 8600GT Computer2: AMD Opteron 6*2.1GHz +Nvidia Quadro1800 Fg.3 Streamlines and Pressure contour From Fg.3 we can find a main clockwise whirlpool and the simulations has a high precision,for we can two small swirls.
Our future work is to continue improving the parallel method and applying the solver to our engineering simulation problems.

The other items of the above calculation formula can be calculated by the results from CFD simulation.
In the table; means flow quantity; means experimental data; simulation data.
means deviation of experimental and simulation data.
We found that the simulation data was in good agreement with the experimental data.
Analysis of the flow through the blade tip clearances of axial pumps by CFD[J].

Numerical Simulation of Heat Transfer in a Closed Two-Phase Thermosiphon Vladimir Arkhipov1,a, Alexander Nee2,b, Lily Valieva2,c* 1Research Institute of applied mathematics and mechanics, 36 Lenin av., Tomsk, Russian Federation 2National Research Tomsk Polytechnic University, 30 Lenin av., Tomsk, Russian Federation aarkhipov@niipmm.tsu.ru, bnee_alexander@mail.ru, clil.valiewa@yandex.ru Keywords: thermosyphon, conduction, evaporation, condensation, mathematical modelling.
[3] Ming Zhang, Zhongliang Liu, Guoyuan Ma, Shuiyuan Chen, Numerical simulation and experimental verification of a flat two-phase thermosyphon, En.
Wrobel, Hussam Jouhara, CFD modelling of a two-phase closed thermosyphon charged with R134a and R404a, App.
Eng. 111 (2014) 91-102 [8] Asghar Alizadehdakhel, Masoud Rahimi, Ammar Abdulaziz Alsairafi, CFD modeling of flow and heat transfer in a thermosyphon, Int.

The core modules of the platform is the physical property simulation modules.
The function of data transfer and automatic simulation is realized by secondary development of commercial simulation software.
The solver end comprises finite element solvers for different physical fields, including commercial software, such as Fluent for the heat flow field, Ansys for the electromagnetic field and CFD-ACE for the plasma field, and self-developed simulation software[2].
Simulation Example.
Multi-Fields Modeling, Processing Simulation and Design of IC Equipments[J].

Hydrodynamic Performance Analysis of Hubless Rim-Driven Propulsors ZHANG Shuai, ZHU Xi, ZHOU Zhen-long Department of Ship Engineering, Naval University of Engineering, Wuhan, China ,430033 zhs309@126.com, zhuxi816@163.com, zhouzhenlong.ok@163.com Keywords: Hubless Rim-Driven Propulsors, design, hydrodynamic performance, Computational fluid dynamics (CFD) Abstract: Due to no design guidelines available for the hubless propeller, based on the relative inflow velocities together with blade root strength considerations, the Ka –series propeller’s blade geometry was re-designed with an inversion of the thickness distribution of the sections.
Cao et al. [4], Hu et al. [5], also developed a hubless rim driven thruster and CFD prediction method.
Meshing technique and Boundary conditions To conduct the open water characteristic simulation, the computation domain is split into global stationary part and rotary part which contains the HRDP, as shown in Fig.5.
CFD Prediction of rim-driven thruster hydrodynamics performance.

Numerical calculation about distribution of velocity, NH3 concentration and flow resistance in the deNOx reactor of a 1000MW power plant boiler with CFD have provided the optimal combination of layout scheme of guide plates.
Former study about numerical simulation with Fluent has obtained the best layout scheme of guide devices.
Numerical simulation has acquired the best combination and arrangement of baffles in actual reactor, shown in Fig 2.1.
Table 3.1 Comparison of model test results and numerical simulation consequences Parameter Design requirements results of CFD consequence of model test Note Velocity distribution ±15% 8.3% 11.1% Above the first layer distribution 10% 4.7% 9.8% Above the first layer Total pressure drop 1200Pa 975Pa 980Pa 390Pa pressure loss caused by two catalyst layer It was indicated that model experiment results were very close to numerical simulation results, which suggested that the data investigated met the design requirements.
And during the design process, numerical simulation served as a guide of the model experiment.

Meanwhile, the single phase of flow field was only considered during the CFD simulation of the hydraulic valves in the above studies, but in fact, the flow field characteristics and cavitation noise of the hydraulic valves were influenced by multi-physics factors.
The hydraulic medium of simulation was 32 # anti-wear hydraulic oil, the opening of the valve port was 5 mm, and other simulation parameters were showed in table 1.
CFD Analysis of Pressure Loss During Flow by Hydraulic Directional Control Valve Constructed from Logic Valves [J].
Simulation of Spool Valve With Notches Based on Fluent [D].
Numerical Simulation of Fluid Flow inside the Valve [J].

Keywords: computer modeling, extrusion, melt, simulations; Abstract.
Numerical simulations Geometries and flow conditions.
The simulation is based on the hypothesis that the flow field is fully filled.
Experiments and simulation results show that materials in the flight zones would be molten first, and solid carcass in the middle of flow channel would be molten at last.
Exprimental and CFD investigation on the solidification processing a co-rotating twin screw melt conditioner.

Simulation of Heat Flux Effect in Straight Heat Pipe as Passive Residual Heat Removal System in Light Water Reactor using RELAP5 Mod 3.2 M.
Straight heat pipe used in the simulation is wickless with 0.1 m of diameter and 6 m of length.
The objective of this simulation is to study the characteristics of straight heat pipe used in the experimental work.
Ferng, "Modeling strategies to compute natural circulation using CFD in a VHTR after a LOFA," in ASME 2012 International Mechanical Engineering Congress and Exposition, 2012, pp. 2341-2351
Alsairafi, "CFD modeling of flow and heat transfer in a thermosyphon," International Communications in Heat and Mass Transfer, vol. 37, pp. 312-318, 2010