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Numerical simulation is mostly used in previous studies of galloping, in this paper, based on ANSYS, the restarting technology is proposed to simulate galloping, and the efficiency of this method is verified.
Secondly, three directions galloping simulation of transmission tower-line system is detailed.
Fig.2 Mode of ice-coated conductor section forces and wind attack angle definition Based on CL, CD, CM, aerodynamic force expression of line per unit length as below: (3) (4) Galloping simulation is performed by using the restarting technology with ANSYS.
Analysis of Transmission Tower-line System Galloping In this paper, galloping of transmission tower-line system is simulated by the restarting technology, the aerodynamic parameters of line are obtained by CFD numerical simulation.

The oscillating frequency that was applied in the simulation is f = 560 Hz whereas the amplitude is A = 0.04 mm.
All the numerical simulations of synthetic jet actuators began from the steady state condition that is without the activation of the oscillating diaphragms.
The governing equations and the numerical approaches implemented for the simulation of moving boundary flows are presented.
By utilizing the commercial CFD software ANSYS CFX-14.5, the heat transfer analysis is conducted by acquiring the instantaneous temperature and velocity fields in the micro-channel.
Results and Discussion Numerical simulations of synthetic jet actuators were started from the steady state condition without activating the jet actuators.

From the surface wind pressure distribution map of the Main Stadium generated through CFD simulation, one can see a differential pressure of 3Pa is formed between the south and east of windward side and the north of leeward side under prevailing wind direction in Guangzhou to serve as sufficient drive for indoor natural ventilation [6, 7].
Fig.1 Wind press distribution of outer surface In air outlet and inlet design, surface wind pressure simulation of the building shows that open air windows can be installed in the south façade and the roof within the positive wind pressure area to lead in the wind [8, 9].
The simulation of direct light distribution with or without vertical sun-shading boards via lighting analysis software is shown in Figure 6, from which one can perceive that direct solar radiation is nearly blocked out [10].
With the test result basically in line with simulation result of natural ventilation in Main Stadium, it shows that traditional sunken stadiums prone to form “Basin Effect” in the playing field, causing poor ventilation and inability to effectively use natural ventilation to improve thermal comfort.

Investigation of the Evaporation Processes of Gel Propellant Droplets Songjiang Feng1,a, Haobo He1,b, Xue Liu1,c, Bo He1,d and Wansheng Nie1,e 1The Academy of Equipment Command & Technology, Beijing, 101416, China ahnfengsj@163.com, bABHHB@163.com, cliuxue00112002@gmail.com, dhebo_85@163.com, enws69@126.com Keywords: Gel propellant, Evaporation Model, Numerical Simulation, Experiment Abstract.
The numerical solutions were obtained using the research CFD code developed at Propulsion Theory & Technique Laboratory (PTTL) [7].
Fig. 6 Evaporation process of a 1.0 mm droplet Fig. 7 Evaporation process of a 2.5mm droplet Conclusions The evaporation processes of gel droplets are studied by way of numerical simulation and experiment.

A CFD-Fortran code based on the finite volume technique was elaborated for the numerical solution of the mathematical model of the problem.
Numerical Procedure In the present study, a CFD-Fortran code based on the finite volume method [44] is elaborated to discretize the governing equations with associated boundary conditions.
After analyzing the data, (52×44×162) grid size was selected for the numerical simulations.
The simulations were done for nanoparticles volumes fractions and different Grashof numbers.
[28] E Abu-Nada, Effects of variable viscosity and thermal conductivity of CuO-water nanofluid on heat transfer enhancement in natural convection: mathematical model and simulation, (2010) 052401

Scholars also contribute some efforts to the computer assistant simulation study.
Under the default value condition,, the simulation of numerical analysis is performed by using empirical numbers.
With the help of professional mesh generation software ICEM CFD, an unstructured tetrahedral mesh is generated, with the total mesh number of 915000.
The result of simulation coincides with the erosion condition in practice.

Briscoe et al. [13] performed the experimental study and numerical simulations of the surface strains developed in a metal-polymer contact under a variety of loading configurations.
The numerical simulation was done on differences between diameter cavities and separation.
The results of simulation indicate that the increasing diameter cavities and increasing separation resulted in reducing von Mises stress distribution.
Ge, Hydrodynamic lubrication of Microdimple textured surface using three-dimensional CFD, Trans ASME 53 (2010) 860 – 870

Wind tunnel experiment and computational fluid dynamics (CFD) numerical simulation can better study the building surface wind load[4].
Wind Tunnel Numerical Simulation Structural Prototype.
On account of the symmetry, simulation wind direction angles are 0°, 45° and 90° respectively in a clockwise direction, angle interval is 45° ( see Fig. 2 ).

Furthermore, brazing phenomena such as the wetting/spreading behaviors of the melted filler metal and the erosion behavior of the base metal during the laser brazing process were analyzed by computer simulation. 2.
It follows that the erosion phenomena can be predicted quantitatively by the computer simulation during laser brazing process. 4.2 Flow Behavior of Melted Filler Metal during Laser Brazing Process The flow of the melted filler metal of Au-18%Ni on a butt joint of Inconel 600 during the laser brazing process were analyzed by the computer simulation.
It follows that the wetting/spreading and infiltrating behaviors of the filler metal during laser brazing process can be predicted by the computer simulation. 5.
(4) The flow of the melted filler metal of Au-18%Ni on a butt joint of Inconel 600 during the laser brazing process were analyzed by the computer simulation.
[8] Flow Science, Inc. customized by CFD Lab., (2005).� Single beam brazing Tandem beam brazing Brazing clearance : 0.1mm Fig.9 Comparison of flow behavior of filler metal droplet on butt joint with between single beam brazing and tandem beam brazing (brazing clearance : 0.1mm)

Model experiment, experience model and CFD numerical simulation are applied to study in-line and cross-flow responses of riser VIV [1-7].