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Though current digital simulation still seems inaccuracy in the calculation of detailed wind pressure on building surfaces, it has assumed fine accuracy and employment value on the reproduction of overall wind condition, thus can be applied to the simulation analysis of settlement wind conditions.
Among all the software for wind condition simulation and analysis, Fluent and Phoenics are relatively widely used.
But an overall evaluation of the design proposal or built environment of a settlement involves various key technologies, such as the thermal environment simulation, computational fluid dynamics (CFD), property analyses of the dwelling under-laying surface etc, At the same time, we can utilize Gis to analyze and evaluate whether the topographical environment suits the growth and development of a settlement, thus serve as the reference for location choosing.
[7] Murakami Wednesday，CFD and building environmental design，Beijing: China Building Industry Press，2007
[8] Ma Jian, Chen Guobiao; Mao Yalang，Study of wind environment around building complex based on CFD,Journal of Zhejiang University of Technology,2007,6：351-354

Numerical simulation was conducted to investigate the effect of dislocation angle of twisted tapes on the thermo-hydraulic performances.
The computational fluid dynamics (CFD) software package FLUENT 6.3 was applied to solve the mass, momentum, energy and species conservation equations The second-order upwind scheme was used to discretize the model, and the “SIMPLE” algorithm was employed to couple the pressure and velocity.
Convergence of the CFD simulation was judged based on the residuals of all governing equations to be less than 1.0×10−6.
Therefore, reasonable accuracy can be expected by the present numerical simulation.
Eiamsa-Ard, in: Proceedings of 4th International Conference on Computer Modeling and Simulation, Vol.22 (2012), IACSIT Press, Singapore

In order to determine the performances of the pump numerical simulation in ANSYS CFX commercial code were used.
Fig 3 Pump rotor stages and design/calculus capabilities The next activity of the strategic development plan consists in establishing the design methodology and development for the discharge volute using Tuzson [6] theory and CFD analysis of flow through this component in order to establish losses (Fig. 4).
Subsequently, the characteristic map calculated using the semi-empirical methods in TCAR is validated through CFD numerical simulations on the tri-dimensional model obtained by stacking the profiles determined at various radii in PALTD. [13] Fig. 8 Turbine design steps, with corresponding computation programs and work flow channel for the first stage of a turbine Turbopump manufacturing capabilities COMOTI has the necessary knowhow regarding the design, technological design, production, testing for complex bladed machinery.
COMOTI owns a great part of these tools and CAD, CFD, FEA capabilities, in-house developed software and also a great experience in machining components for the aerospace field.

This is the significance of the understanding of modeling computational simulations of blood flow and can be expressively achieved by alterations in geometry different.
However the utility of computational flow simulations as a clinical tool is strongly dependent on the sensitivity of the model to the level of geometry definition and flow boundary conditions.
Commercially available software packages are now available for simplify patient geometry [5], but determining the threshold level from medical imaging can influence the geometry of vascular model and result of computational simulation.
Numerical simulations of flow in cerebral aneurysms: comparison of CFD results and in vivo MRI measurements.
Sensitivity of patient-specific numerical simulation of cerebal aneurysm hemody- namics to inflow boundary conditions.

In the past two decades, significant progress has been made in the mathematical modeling of the hydrocyclone process based on computational fluid dynamics (CFD) techniques [3-5].
Geometry of the Simulated Hydrocyclone The dimensions and mesh of the hydrocyclone used in the numerical simulation work are shown in the Fig. 1.
This mesh presented good predictions and reasonable computational time for simulations.
Simulation A commercial solver (ANSYS CFX® 10.0) was used to obtain the numerical results.
Yu: in 3rd International Conference on CFD in the Minerals and Process Industries, Vol. 1 (2003), pp.371-376, Melbourne, Australia.

The cloud simulation platform can provide professional online water environment simulation to customers by submitting their basic information.
Cloud Simulation Platform.
It provides online simulation services through the established professional water quality simulation model[3].
Technology Roadmap Call FLUENT With C# The FLUENT is a kind of CFD (Computational Fluid Dynamics) software launched by the company named FLUENT (USA).
New Scheme of Simulation Summary The purpose of this paper is to establish a water environment cloud simulation platform.

Numerical Simulation of the Flow Field for Rotor Ventilation System of Large-scale Nuclear Power Turbo-Generator Zhang xiaohu 1,a，Hu lei1,b, Yuan jianhua2,c,Yuan yichao3,d 1.
In this article, according to the basic principles of computational fluid dynamics (CFD), ventilation’s structure and performance is analyzed, 3D flow model is also established.
Therefore, adoption of the numerical simulation method for the complex components[8,9] will surely improve the practical application and accuracy of fluid equivalent network calculation method and provide the basis for the optimization of the generator ventilation system.
Study on a ventilation simulation for Hydroturbine generator motor[J].
CFD analysis of Ventilation structure of air cooling steam turbine generator rotor[J].Dongfang Electrical Machine, 2006,34(1): P.41-P.45

Using ANSYS-FLOTRAN package the analysis of 2-D aerofoil sections such as “test case and naca-0009” sections under the incompressible flow, which hold good agreement with experimental results [2, 6], after the validation of CFD results the analysis is switched over to compressible flow on 2-D typical section of aircraft wing at the flutter speed.
Typical section assumption approach is used for CFD analysis.
TEST CASE of AEROFOIL SECTION: The pressure distribution acquired form FLOTRAN CFD analysis is very well co-inside with the experimental results.
It has been shown how the CFD environment represents a good choice to manage all the cases, where the pressure distribution over the typical aerofoil section is determined and from the pressure distribution, the lift and moments acting on the wing model is calculated: static analysis, modal analysis, transient analysis, harmonic analysis, spectrum analysis, under these aerodynamic forces and moments the wing model is structurally analyzed.
K: Crash simulation of car using LSDYNA, Advanced Material Research, Vols. 433-440 (2012) pp 2326-2331

CFD simulations to determine the effect of the slot angle show that the performance of Savonius wind turbines with slotted blades decreases at a high tip speed ratio and a small slot angle (β = 5 °) results in better performance at a low tip speed ratio [6].
On The Effect of Slotted Blades on Savonius Wind Generator Performances by CFD analysis.
Slotted Blades Savonius Wind Turbine Performances Analysis by CFD.

Finally, it compared the simulation results with the calculated value.
Finally, it compares the simulation results with the calculated value.
The simulation dates is shown as table 1.
Fig.5 is the contrast curve of the simulation value and the calculated value about the flux of the outlet warm water.
According to Fig.5 and fig.6, the change trend of the CFD simulation results and the calculated value are consistent; the value of number is also relatively close.