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Study on Wind Load Characteristics of a Super Tall Building Based on Numerical Simulation Lunhai.
Numerical Simulation Models and CFD Methods In this paper, the CFD software FLUNET will be utilized to simulate the three-dimensional and unsteady flow-field around the super-tall building under strong wind conditions.
Totally, about 4200000 grid elements were generated in the present simulation.
Fig.2 shows the instantaneous velocity contours predicted by the present numerical simulation.
Fig.5 shows the generalized wind forces spectra obtained by LES simulation.

Numerical Simulation of Flow Distribution in the Packed Bed Reactor with the Supply Nozzle Placed on the Sidewall Igor A.
Mathematical model The computational fluid dynamics method (CFD) is applied to calculate the pressure distribution and velocity field in the considered device.
Solution procedure The governing equations (Eq. 2 – Eq. 4) were discretized using the finite volume method and solved using commercial CFD software Fluent.
Song, CFD simulation of the effect of upstream flow distribution on the light-off performance of a catalytic converter, Energy Convers.
Rammoser, Optimisation of catalytic converter gas flow distribution by CFD prediction, SAE Technical Paper 930780 (1993)

Numerical Simulation of Unsteady Aerodynamic Loads over an Aerofoil in Transonic Flow Yu Qian1, a, JunLi Yang1,b XiaoJun Xiang1,c and MingQiang Chen1,d 1Civil Aviation Flight University of China, Guanghan Sichuan 618307, China aqianyucafuc@hotmail.com, byjl_tom@163.com, cxj_xiang@126.com,dmq_chen@126.com Keywords: numerical simulation, unsteady flow, hysteresis effect, hysteresis loop Abstract.
Generally, there are three traditional approaches to determine the stability and control characteristics: flight testing, wind-tunnel testing and Computational Fluid Dynamics (CFD).
A reasonable compromise between testing procedures and semi-empirical approaches is CFD, which represents the state of the art in modeling non-linear flow physics.
CFD solvers have reached a level of robustness and maturity to allow routine use on relatively inexpensive computer clusters.
Badcock, Computation of Dynamic Derivatives Using CFD.AIAA paper.

In this paper, 3D finite element numerical simulation was used on the flow in the XXXX melt pump with POLYFLOW.
By numerical simulation analysis on the flow field in the melt pump, distribution characteristics of pressure, flow velocity vectors and shear rate in the melt pump were obtained.
Based on the geometric model, three regions including one fluid region and two solid regions are meshed with ICEM-CFD, as displayed in Fig. 2.
On condition that the simulation results are not affected, a hole is dug in the centre of each gear to reduce the number of grids.
Results Contour of pressure distribution is achieved by analyzing simulation results under a certain inflow rate and gear rotary speed with CFD-Post.

In recent years, with the rapid development of computer technology, make using Computational Fluid Dynamics (CFD) technology simulation water-oil separation hydrocyclone flow field in possible.
More and more scholars have focused on investing internal flow field and complex geometries of hydrocyclone using principle and method of CFD which allow the simulation of very complex flow problems without the expense of experimental setup and measurements.
Numerical simulation Model parameters.
Fig. 2 CFD mesh for the hydrocyclone Results and analysis Fig. 3 reflects the trajectory about the water-oil two phase liquid flowing within hydrocyclone.
Cao, et al, “Numerical simulation of the effects of turbulence intensity and boundary layer on separation efficiency in a cyclone separator,”Chemical Engineering Journal 95 (2003) , p.235–240.

In early years, experiment is the only way to research the characteristics of the oscillatory flow reactor, while numerical simulation becomes more a useful method with the rapidly development of the computer technology and computational fluid dynamics (CFD).
The mechanism of mixing in an OFR can be understood with the help of numerical simulation study on the concentration field.
What’s more, it has laid a good foundation for the simulation of reactions to research the concentration field in the OFR.
[13] Li Wei, Hu Xiaoping, Wu Jia, “CFD Study of Flow Fields in an Oscillatory Flow Reactor with Conic Ring Baffles,” Chemical Reaction Engineering and Technology, vol. 23, no. 6, pp. 487-493, December 2007
[14] Wang Fujun, Analysis of Computational Fluid Dynamics-CFD Software Principles and Applications, Beijing: Tsinghua University Press, 2004, pp.116-122

In fact, to get an optimum parameter experimentally is a very tedious for iterance pulse tube refrigerator job, so that the CFD approach gives a better solution.
In general, pulse tube refrigerator problems are highly non-linear and simulation takes long timing and high computation cost.
Neural network with three layers Conclusions A numerical approach of modelling and simulation has been presented in this work to estimate performance of the ITPTR.
An ANN-based process model was developed using results from the numerical simulations for the COP of the pulse tube refrigerator.
Sarangi, Influence of Porosity on the Performance of a Pulse Tube Refrigerator: A CFD Study.

The analysis is carried out using CFD software using k-ε turbulence model.
Different widths had been investigated for different inlet volume flow rates by numerical simulation.
In this article the influence of different pitches of helical tape and different tape heights ontemperature distribution are simulatedand analyzed by means of CFD software.
All of the simulation is carried out at the same inlet conditions with Reynolds number around 4.5 × 105based on the inletdiameter of the diffuser.
Diffuser Configuration Helical Tape Pitch Length, Y [mm] Helical Tape Height, H [mm] A 20 5 B 25 5 C 30 5 D 30 10 E 30 15 Computational simulation.The simulation is carried out using Numeca Fine/Open v.2.12-2 applying standard k-ε model.

According to the characteristics of the laboratory, for the condition of using air conditioning that is falling to the ground pattern to assist radiator to heat, use CFD to simulate the airflow organization and thermal environment in laboratory.
By the research methods of combining CFD numerical simulation with on-site testing, a study is made on velocity field, temperature field and thermal comfort in the laboratory in winter.
(5)In this simulation, we use normal double mathematical equation to simulate[2].
Boundary conditon of wall Item Wall Window Roof Floor Door West East South North T(K) 287.97 Adiabatic Adiabatic 287.14 285.5 Adiabatic Adiabatic 287.14 Simulation and Analysis of Thermal Environment Simulation and Analysis of Temperature Field In order to compare with actual measurement data, the boundary conditions of simulation is measured practically [3].
Simulation date is 16/12/2010.We turn on the air conditioner at 1 p.m., discuss the change of temperature in seven minutes.

The numerical simulation of the vehicle was completed based on the theory of the aerodynamics.
Because of the cost and conditions in testing, recently, more attention is paid to CFD.
Computational Fluid Dynamics (CFD) is an attractive approach as it can provide a large amount of data and detailed information on the flow field.
Two vehicle-dynamics simulations were conducted for transient crosswind conditions.
Simulation Research on Automotive Aerodynamic Characteristics during the Overtaking Process[J].