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In this paper, a deep-well centrifugal pump impeller with a small rear shroud was studied by simulation and test.
Two stages deep well centrifugal pump was simulated by means of a commercial CFD software that solved the Navier-Stokes equations for three-dimensional steady flow.
The flow field and the static pressure distribution in the impellers obtained by steady numerical simulation were analyzed.
By manufacturing and testing, the test results was acquired, and then compared with the predicting data of the numerical simulation.
This confirmed the feasibility of predict the pump performance by numerical simulation method.

In the present research, an axial pump as turbine were tested by Nourbakhsh et al. [13] is simulated using computational fluid dynamics (CFD) and characteristic curves of turbine modes are obtained.
A section of 3D structured grid For CFD grid generation, the Autogrid module of NUMECA is coupled with the Autoblade.
These are strongly recommended for turbomachinery simulation when low-Reynolds number turbulence models are needed [16].
So, mechanical losses are reduced from output power achieved by CFD to have the same conditions of comparison.
Lai, Hydraulic analysis of a pump as a turbine with CFD and experimental data, ImechE, Seminar Proc. of Advances of CFD in Fluid Machinery Design, 2003, London, England

Previous work of Michelassi et al.[1] demonstrated that Large Eddy Simulation (LES) do have the capability of transition prediction and separated flow simulation.
Numerical simulation results are illustrated in Fig.  6.
Zahle, 3D CFD computations of transitional flows using DES and a correlation based transition model[J], Wind Energ. 14(2011) 77-90
Strelets, Detached Eddy Simulation of Massively Separated Flows.
Langtry, A Correlation-Based Transition Model using Local Variables for Unstructured Parallelized CFD codes. 2006 [9] R.

CFD model Based on the experimental results operated by Zhang[7], the commercial CFD code Star CCM+ is used to analysis the columnar sodium combustion in a closed burner.
Based on the experimental results listed on the reference 7, the commercial CFD code Star CCM+ is used to analysis the columnar sodium combustion in a closed burner.
But this process was not considerate in simulation.
And the difference existed between the simulation and refference7.
The numerical simulation was carried out absolutely according to test condition.

Computational fluid dynamics simulation was performed, which indicates that the morphological evolution of the ZnO structures results from the competition between the axial growth and the radial growth based on different O2 and Zn vapor partial pressure.
Meanwhile, computational fluid dynamics (CFD) simulation was carried to explain the results.
In order to explain the morphological evolution, the simulation was performed using FLUENT 6.3.26 software.
The CFD simulation results indicate the morphological evolution of the ZnO structures are based on the different O2 and Zn partial pressure at different position with the same O2 flow rate.

However, the roll stiffness of the aerostatic bearing has seldom been studied, partly due to the difficulty in accurate simulation of the pressure distribution in non-isopachous thin gas film.
The pressure distribution of the aerostatic bearing is numerically solved by using the computational fluid dynamics (CFD) software Fluent.
The relationship between the pressure distribution p and the air gap h solved by using the CFD software Fluent is shown in Fig. 3.
Since the pressure distribution p is solved numerically by using CFD software Fluent, the normal stiffness and the roll stiffness of the entire planar aerostatic bearing in can be rewritten by using the numerical results as follows (10) (11) whereis the pressure at the position with radius.
Eleshaky, “CFD investigation of pressure depressions in aerostatic circular thrust bearings,” Tribology Int., vol. 42, pp. 1108-1117, 2009

Energy Simulation as an Architectural Design Tool The ability to produce energy efficient design proposals within the architectural field is becoming an essential requirement more than an option. [14] As part of the development design strategy, an extensive simulation analysis is carried to determine the most energy efficiency solution suitable for commercial building in specific location.
DesignBuilder is the chosen software in this study because DesignBuilder provides accurate energy, comfort, cost, and daylighting performance data to help inform and guide your design decisions in addition to the ability to simulate design CFD (Computational Fluid Dynamic) to simulate building natural ventilation flow [15].
This wind flow distribution is guaranteeing the thermal comfort for the users of the inner plaza Figure 6: CFD study for the proposed design by DesignBuilder, Source: Authors Also, phase 3 and phase 4 from the project design are had energy simulation to ensure, the energy design reduction and the design is compatible with LEED energy category as a step toward being LEED certified.
Results The design is simulated by environmental simulation software DesignBuilder to ensure that the design is integrated with the environment, energy efficient and sustainable.
Teaching energy simulation in the architectural design studio: An experimental approach.

The result of numerical simulation is consistent with that of analytical calculation.
Fig.1 Cavitation jet noxxle Numerical Simulation Turbulence Model.
The numerical simulations of three widely used cavitation nozzles (Helmholtz nozzle, organ pipe nozzle and angle nozzle) are studied.
The best nozzle is selected by comparing the simulation results.
Wang: Computational Fluid Dynamics--Principles and Applications of CFD.

By using FLUENT-CFD software, through modeling, meshing, solving and other methods, Respectively, the airflow level posture sensor of two-wire structure and three-wire structure are simulated in the sensitive of the velocity field of different tilt angles and different heat source temperatures.
In order to optimize the airflow level posture sensor heat wire structure, this paper use finite element simulation analysis method to calculate the distribution of sensitive components within the structure of the two air velocity varies with temperature, angle changes.
In order to calculate convenience using ANSYS CFD, the sensitive element is simplified as two dimensional structure, thermal resistance wire and heat source are simplified as points.
First, modeling: choosing ANSYS FLOTRAN CFD analysis function, choosing FLUID141 unit.

Based on the finite element model and aerodynamic characteristics of the iced conductor, the Runge-Kutta method was applied to carried out non-linear numerical simulation of iced conductor galloping and the Matlab program was compiled.
In this dissertation, ,a complete set of methods for numerical simulation of galloping has been established based on traditional non-linear finite element method.
The numerical simulation of aerodynamics properties which is based on the computational fluid dynamics(CFD) is developing fast with developing of computer.
The method of numerical simulation has many advantages compared with wind tunnel trial, so ,it is designated by the name of numerical tunnel iconically.
The functional relationship between aerodynamic coefficient an the wind angle of attack can be obtained by the method of numerical simulation, then the nodal wing load can be obtained easily.