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A three-dimensional grid and the realizable turbulence model are used in this simulation.
Based on the simulation, the principle of yarn splicing of the pneumatic splicer is discussed.
Jianheng Zhou and Pengfei Qin [2] firstly applied the Computational Fluid Dynamics (CFD) technology to the design of the pneumatic splicer, but they adopted the standard model to calculate turbulence in the simulation.
In this simulation, the Cartesian coordinate system is adopted.
The CFD Technology for Pneumatic Splicer Virtual Product Development [J] .

A moving interior boundary method fitted dynamic mesh for the simulation of flow through moving bodies Mao Deng1, a, Zongming Wang2,b, Chunxue Zhang3,c 1,2,3College of Electromechanical Engineering China University of Petroleum Dongying city, Shandong province, P.R.China adengmao19880820@163.com, bwzmcc@upc.edu.cn, chappyzhchx@163.com Keywords: CFD, dynamic mesh, moving body, porous material, simulation Abstract.
The geometry was exported from SolidWorksTM in Parasolid format and imported into GAMBITTM, where the CFD mesh was generated.
The mesh was input into FLUENTTM CFD package.
We used dynamic mesh model to do the simulation.
As an example, a three-dimensional CFD study of the flow through a moving screen has successfully been conducted.

Evaluation of water cooling system of 1.5MW rotor based on CFD Ming Qin 1,2,a, Hai Tao Dai 1,2,b, Ming Wei Ge 1,2, c 1Guodian United Power Technology Company Limited, Beijing 100039, P.
In this paper, the focus on the cooling pipe arrangement of the cooling system via CFD based on the 3D model.
During the simulation, the thermal conductivity, the convective heat transfer and the Radiation are all taken into consideration.
In the CFD simulation, the imcompressible Reynolds Averaged Navier Stokes equation is used (2) (3) where the subscript i or j is the i/j-th component of cooresponding vector. ρ is the cooling water density, p is the pressure and is the kinetic viscosity of the fluids.
Fig.2 shows the coordinates and grids used in the simulation, to validate the grids, the grid-independent is verified by three different grids.

The turbulent flow in the designed HSBP have been simulated and analyzed by using the multiphase suspend body CFD simulation technology.
The simulation results indicate that the turbulence in the designed HSBP can meet the requirements of blood physiology.
By using the means of computational fluid dynamics (CFD) when optimizing the shape of impeller, we can predict the function of blood pump and the disadvantage of inner flow field more precisely so as to lighten the shear stress of the blood cell.
So it’s important to use CFD technology on studying the improvement of blood pump’s mechanical efficiency and reducing the blood turbulent injury.
The length of impller is 15mm; the designed flow is 5L/min;the pressure drop of inlet and outlet is 100mmHg;the speed of impeller is 7500rpm. Ⅱ CFD Simulation results of IMFBP’s Inner turbulent flow field Fig.2 The distribution of TKE in HSBP Fig.3 The distribution of the axial TKE Fig.4 The distribution of TDR in HSBP Fig.5 The distribution of the axial TDR Fig.2 shows the distribution of TKE in IMFBP’s flow field.

However, highly flexibility wing structure renders previous rigid model in aerodynamic simulation and ideal aerodynamic force distribution in structural simulation meet serious challenges.
The simulation result is compared with the result obtained using traditional unidirectional mapping method.
CFD Model and CSM Model.
The CFD and CSM models are showed in Fig. 1.
Thus provide more accurate simulation for high-aspect-ratio wings.

To solve this problem, this paper presents a novel numerical analysis method for the error correction of RH based on computational fluid dynamics(CFD).
By using CFD commercial software package Fluent, we get the temperature error caused by solar radiation heating varying with different influencing factors.
After comparison, we find that the simplified model (only a humidity sensor) has no effect on the results of numerical simulation because of the symmetry of two sensors.
The grids of the simplified model and air domain Finally, the file of the divided mesh is imported to software Ansys Fluent for numerical simulation.
Then the convection-solar radiation coupled thermal boundary conditions are adopted in the numerical simulation for analysis of fluid-solid coupled heat transfer.

Numerical Calculation to the Fluid-Film of the Sealing Ring CFD Numerical Theory.
These basic laws can be expressed by mathematical equations.CFD is the integral or partial differential equations was instead by the discrete algebraic.
The CFD pre-processing software GAMBIT was Applied , the 3-D numerical model of the friction pair fluid-film was built up by software GAMBIT based on actual condition finally.
So the result of numerical simulation of the pressure is lower than the result of the theoretical.
It led to the theoretical calculations and the numerical simulation have the larger of error.

A fluid-structure interaction numerical simulation technique based on CFD has been developed to study the vortex-induced vibration behavior of steel arch bridge hanger.
CFDNST application The CFDNST is developed by using commercial CFD software Fluent and its User Defined Function (UDF).
The boundary condition in CFD model is shown as below
Simulation wind speed varies from 2.0 to 9.0 m/s.
[4] F.J.Wang, Computational Fluid Dynamics – CFD Theory and Its Application, 1st ed., Tsinghua University Press, Beijing, China, 2004.

Experiments and Computational Fluid Dynamics (CFD) tool are used for analyzing the effects of thermophoresis and diffusiophoresis on the heat transfer enhancement process.
Numerical simulation results for temperature distribution are validated using experimental readings.
Thermophoretic velocity outputs derived from numerical simulation show significant movement of nano particles very close to realistic values.
The first approach considers Lagrangian statistics with Direct Numerical Simulation (DNS).
The density and thermal conductivity of the nanofluid were closely predicted to the experimental results reported in the literature by the CFD.

In order to study the interaction of flow around two full-scaled blades of Canoes which are used in sports competition, the numerical simulation is performed for computation of fluid dynamics (CFD) using Fluent, commercial software.
This is the first research of simulation using computational fluid dynamics (CFD) to investigate the fluid mechanism in rowing.
Large Edyy Simulation of Flow around Two Circular Cylinders.
Numerical Simulation of the Flow around an Oar Blade of Canoe at Square-off.
Numerical Simulation of Oar Blade of Rowing at Higher Angle of Attack.