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The paper presents the numerical prediction of sediment erosion on Francis turbine blades using CFD code.
The numerical simulation results are consistent with the real situation. 1.
OpenFOAM is an object-oriented C++ library of classes and routines of use for writing CFD codes.
The numerical simulation results are consistent with the real situation.
Numerical simulation of turbidity current flow and sedimentation: I.

Sensitivity Analysis of the Air Flow Inside a Single Cylinder Engine for Different Turbulence Models Using CFD Felipe Grossi L.
However, when modeling internal combustion engines using CFD, the turbulence model choice is always a relevant problem.
Considering all the studies that are being developed in this field, the present paper aims to analyze different aspects of the cold flow inside an internal combustion engine chamber, using CFD simulations.
Therefore, the simulation starts at the 330º, the TDC occurs at 720º and the simulation ends at 1080º.
“A Rapid Cfd Simulation For Internal Combustion Engines”, Sae Paper 1999-01-1185, 1999

Humidity Distribution Simulation of Passenger Vehicle Cabin Liping XIANG School of Mining and Safety Engineering, Hunan University of Science & Technology,Xiangtan, Hunan, 411201,Chian elephantxlp@163.com Key words: Numerical simulation, Passenger cabin, Humidity distribution Abstract.
An efficient computational fluid dynamics(CFD) technique is using the “realisable” model.
Many researches on the fluid and heat transfer characteristics of passenger compartments have been carried out using CFD.
Basically, the numerical model is based on a commercial CFD code, Fluent[5].
Numerical simulation of the flow in a passenger compartment and evaluation of the thermal comfort of the occupants.

The method that combined the reverse engineering based on CT medical images and computational fluid dynamics(CFD) was used to perform simulation the Non-Newtonian blood fluid flow in human abdominal artery, then analyzed the hemodynamic condition about the bifurcation of human abdominal artery.
In this article, computational fluid dynamics(CFD) and computed tomography(CT) image were used to study blood flow in the human abdominal artery.
Reconstruction of the 3D model for numerical simulation in the software ANSYS-ICEM.
The data for were derived for each time step in the simulation by the software of ANSYS-CFX.
Schonfeld, Integral boundary conditions for unsteady biomedical CFD applications , J.

The CFD simulation results shown that diffuser on rear body bus models able to improve the aerodynamic forces and wake structure are correspond with incresing diffuser angle.
Geometry set-up, domain simulation, boundary condition, and mesh of the bus model were shown in fig. 2.
The commercial CFD was used to perform the simulations.
Geometry set-up, domain simulation, boundary condition, and the mesh of bus model.
The following conclusion were obtained on the CFD investigation presented here: 1.

From the CFD’s final result, 3 blades with angle 300 was the best combination among the parameters involved.
Next, all of the 3D solid modeling can be exported to the CFD analysis software for the next tasks.
For this particular case the value of iteration used for the simulation was 100.
Examples of images of meshing on the related blades (a) CFD image on 3 blades (b) CFD image on 4 blades (d) CFD image on 6 blades (c) CFD image on 5 blades Fig. 4.
Examples of CFD analysis images for few numbers of blades and blade’s angles Fig. 4, shows images of the CFD’s results based on the related parameters which have been set earlier.

Analysis results of computational fluid dynamics, CFD simulation of the temperatures are close to the measured data.
The temperature variation for a typical day is simulated using the computational fluid dynamic, CFD the simulated data are compared with the measure results.
Fig. 2 shows the CFD simulated distribution of the interior air current and temperature.
Distribution of Temperature Measured at 16 Evenly Spaced Points across the Room Simulation of Roof Covering Vegetation The influence of a medium layer with vegetation coverage on the heat transfer and its insulation efficiency is simulated using computer simulation before the vegetation is actually planted.
The CFD simulation yields results similar to laboratory data that demonstrate the practicality of the CFD simulation for conducting future studies.

In this paper, steady CFD analysis were applied to different structures of double-tangent-port.
Fig. 4 Test and simulation comparison of pressure Table. 3 Test and simulation comparison of soot Operating Condition Speed [r/min] Torque [Nm] Experiment [g/kW·h] Simulation [g/kW·h] Rated Point 2200 1085 0.55 0.533 Numerical Study of Intake Ports In this chapter, the working process of the diesel engine is analyzed which aims at presenting a theoretical basis for design and improvement of intake port.
For this purpose, original port, optimized double-tangent-port, mixed-port and double-helix-port numerical simulations, swirl are carried out using commercial CFD code AVL-FIRE.
The steady simulation of intakes ports with the CFD method illustrates the excellent performance of optimized double-tangent-port, particularly when comparing with the mixed-port and double-helix-port.
Application of CFD Numerical Simulation for Intake Port Shape Design of a Diesel Engine[J].

Basic theory of simulation 3.1.
We used CFD software to analyze and simulation flow field due to that conventional formula can’t solve such problem.
We calculate the change of parameters in complex flow fields by means of CFD theory[4].
The process of CFD simulation as follows. (1) Establish geometric model and mesh. (2) Chose solver and material character.
Calculated mass flow rate of inlet channel and outlet channel using CFD simulation.

In order to investigate the conditions of heat transfer, thermal calculations were made and then numerical simulations using Computational Fluid Dynamics (CFD) were conducted.
Temperature distribution on the surface of the fins designated by CFD corresponds to the distribution designated analytically.
CFD methods are now widely used in the design of the process devices [4].
Using CFD in design of pneumatic pulsators has not yet been applied.
Thermal Analysis Using CFD The use of numerical simulation methods in computer aided engineering analysis enables fast and relatively accurate determination of results, the obtainment of which in an analytical way would be extremely difficult or even impossible.