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The Computational Fluid Dynamics (CFD) has been conducted to analyze hydrodynamic load formed during water exit.
Fig. 1 free surface, cavity profile, and pressure distribution / Pa Based on the CFD analysis, the water exit dynamic model has been established.
In order to analyze the effect of time space Δt, the structure dynamic simulation of the vehicle with different concentrated force locations xF1D -1 and xF2D -1 have been conducted.
The simulation result indicates that the time space between the two force has a significant influence on the internal force responce level.
[3] Luo Jing and Li Jian: Two-dimensional simulation of the collapse of vapor bubbles near a wall.

A preliminary study on the heat transfer characteristics of a parallel plate heat sink through the CFD simulation is important to determine the optimal heat sink design [4].
Results and Discussion Initially, the aluminium heat sink was designed and evaluated by using FE simulation.
From the FE simulation result, the copper heat sink was able to dissipate the temperature faster than the aluminium heat sink because copper has higher thermal conductivity compared to aluminium materials, which was 401 W/m.K and 205 W/m.K, respectively.
[4] R Arularasan, R Velraj, CFD analysis in a heat sink for cooling of electronic devices, Int.

The current master model is ready Arrangement of on-board equipment, balancing NO Analysis of aerodynamic properties (CFD) Nature of tasks to be executed Checking whether the object meets the imposed conditions Computation of flight characteristics (performances) The estimation meets the desired effects Development of final geometry (outline contour) Parameters and boundary conditions.
The algorithm for development of a CAD model with the use of the engineering concept of the ‘master model’ Such an approach eliminates the need to potentially change the concept after the first performance examinations or advanced computer simulations (CAD, CFD).
Use of vortex lattices arranged in concentric polyhedrons with a polygonal base, suitable for simulation of an aircraft body.
Sibilski, Modelling and simulation of dynamic features for motion of flying craft, The MH Edition, Warsaw, 2004 (in Polish)

This book covers these topics: Acoustics and Noise Control, Aerodynamics, Applied Mechanics, Automation, Mechatronics and Robotics, Automobiles, Automotive Engineering, Ballistics, Biomechanics, Biomedical Engineering, CAD/CAM/CIM, CFD, Composite and Smart Materials, Compressible Flows, Computational Mechanics, Computational Techniques, Dynamics and Vibration, Energy Engineering and Management, Engineering Materials, Fatigue and Fracture, Fluid Dynamics, Fluid Mechanics and Machinery, Fracture, Fuels and Combustion, General mechanics, Geomechanics, Health and Safety, Heat and Mass Transfer, HVAC, Instrumentation and Control, Internal Combustion Engines, Machinery and Machine Design, Manufacturing and Production Processes, Marine System Design, Material Engineering, Material Science and Processing, Mechanical Design, Mechanical Power Engineering, Mechatronics, MEMS and Nano Technology, Multibody Dynamics, Nanomaterial Engineering, New and Renewable Energy, Noise
and Vibration, Noise Control, Non-destructive Evaluation, Nonlinear Dynamics, Operations Management, PC guided design and manufacture, Plasticity Mechanics, Pollution and Environmental Engineering, Precision mechanics, Mechatronics, Production Technology, Quality assurance and environment protection, Resistance and Propulsion, Robotic Automation and Control, Solid Mechanics, Structural Dynamics, System Dynamics and Simulation, Textile and Leather Technology, Transport Phenomena, Tribology, Turbulence and Vibrations.

Once the exit velocity in the coil tubing is known, the value is used as an inlet velocity boundary condition for the bottomhole and the well annulus for the subsequent CFD analysis.
The bottomhole and the cased annulus flow parameters are solved using the CFD software, FLUENT.
The present approach resulted in approximately an hour per simulation time.
The simulation utilizes the FLUENT Eulerian-granular multiphase module as its basis.
It can be helpful to CT crew in-situ without the need of detail simulation model.

Currently, researchers studied air movement characteristics within the enclosed space mainly through numerical simulation, which was a low-cost, short-cycle and data-rich method, the flow characteristics can be found through the simulation data.
Nielsen P.V. applied CFD (computational fluid dynamics) technology to the field of HVAC (Heating Ventilation Air Conditioning) Engineering firstly, he predicted the indoor air flow, and then designed airflow.
Fig.1 Welding shop model Numerical simulation parameters: CO2 gas flow is 17 ml/min, each welder normally generates CO at the rate of 170 mg/min [8].Conventional inlet size is 2.0m×2.0m, outlet in the workshop is 0.3m.
[4] Qingyan Chen, Weiran Xu, A zero-equation turbulence model for indoor air flow simulation [J].
[9] Weiran Xu, New Turbulence Models for Indoor Air Flow Simulation [D].

With the help of CFD.
The numerical simulation method can solve the actual problem.
Numerical simulation of steady flow in vortex pump.
Optimization design and test of vortex pump based on CFD orthogonal test.
CFD-PBM coupled calculation on liquid-solid two-phase flow field in a vortex pump.

CFD (Computational Fluid Dynamics) simulation technology has become a powerful tool to describe fire, with which the image of the fire scene such as smoke movement, toxic gas generation conditions and fire temperature can be reproduced.
Conditions of numerical simulation Physical model.
Fig.1 The Schematic of simulation model Fig.2 Plane dimensions of the simulation model Grid setting.
Simulation conditions.
The simulation air supply is listed in table 1.

The CFD (Computational Fluid Dynamic) method allows information on steel motion, flow, flow turbulence and steel temperature distribution in the tundish to be obtained.
The subject of simulation was a six-strand tundish unprovided with flow control devices.
The numerical simulation of steel flow was performed for whole test facility without the "symmetry" boundary condition.
The program Fluent was used to computer simulation
The results of this simulation are represented in Figs 7 & 8.

Based on 3D numerical simulation of CFD and Airpak, the paper aims at predicating and assessing the indoor thermal environment of light steel structure residence equipped with air circulation system, studying various indicators concerning the thermal environment, verifying the practical effect and the energy consumption of the system so as to provide reliable theoretical basis for the real project test.
A study on the CFD Simulation of the Thermal Environment in an Office [J.]
A Study on the Numerical Simulation of the Residential Building Indoor Thermal Environment [J.]
A zero-equation turbulence model for indoor air flow simulation [J].
The Numerical Simulation and Evaluation of Indoor Air Quality[J].