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Finally, the CAD model of fish is presented followed with the simulation and preparation of primary prototype. 1 Introduction Biomimetics or biomimicry is the emulation of the models, systems, and elements of nature for the purpose of solving complex human problems.
Image of Ballast tank 4.2 Analysis of biomimetic fish In order to perform the simulation analysis, the CAD model of biomimetic fish was simplified to analyze velocity and pressure counter along with change with working depth of water [9].
The analysis of the model is carried out in ANSYS R21 Fluent by fixing the geometry of the fish in stationary condition and water is simulated by Computational Fluid Dynamics (CFD).
The simulation method involves simplification of the model, setting the values to the parameters, analyse the body by giving the different values shown in table and 2.
Maleki, “Modeling of a Carangiform Robo-Fish; Simulation and Experiment”, Conference on MechanicalEngineering-ISME2007, May, 2007

A steady state simulation with pressure based solver is performed.
Comparison of both results shows the simulation well predicts the location of shock diamonds and bow shocks at the exit of the nozzle.
"Assessment of CFD modeling via flow visualization in cold spray process."

To gain enough and representative sample point, this paper arranged forty times CFD calculations according to Latin square design at the velocity of , get results of displacement and wet surface area and resistance.
Numerical simulation of fluid in Fluent needs to set complex solution model and boundary conditions, so workload is heavy and there are many repeated operations.
Simulation based design of fast multi-hull ship[C].26th Symposium on Naval Hydrodynamics,Rome,Italy,2006 [2] Tahara Y, Peri D, Campana E F, Stern F.

The model was incorporated into a CFD code that solves the Navier-Stokes equations with the standard k-ε closure turbulence model.
Moreover, the simulation revealed that the concentration and distribution of activated refiner particles in the sump can be controlled by varying the distance H.
The simulation with the model revealed that shortening of time needed for the activated refiner particles to transport from the cavitation zone to the solidification area could be the main reason for the improvement in ultrasonic refinement effects.

Zhang, CFD Simulations of a large-scale seed precipitation tank stirred with multiple Intermig impellers, in: Margaret Hyland (Eds.), Light Metals 2015, John Wiley & Sons Inc.
Zhang, Physical Simulation on Mixing Uniformity in Seed Precipitation Tank, in: n: Carlos E.

As for as the numerical simulations for flow and convection heat transfer of nanofluids is concerned, only very recently a few papers have published.
In this study, the forced flow and convective heat transfer of the laminar flow containing EG/water based nanofluids under constant heat flux is simulated using the Computational Fluid Dynamics (CFD) tools.
Conclusions Numerical simulations have been performed by using a single phase model on the laminar flow and convective heat transfer of different nanofluids through a straight tube under constant wall heat flux boundary condition.

Numerical Simulation of the Influence of Water Flow on Navigation and Optimization Scheme Selection of a Power Station Jin Hu1, a 1Sichuan College of Architectural Technology,Deyang,China a478428210@qq.com Key words:A Power Station; finite volume method; fluid mechanics; numerical simulation; navigation standard; simulation conditions; optimization scheme Abstract.In the 10 million Kw daily peaking capacity project of a Power Station, the daily average flow is 10000 m3/s, the starting passing dam flow is 2800 m3/s, 10000m3/s and 17200 m3/s, and the maximum turbine flow velocity Q is 7200 m3/s.We conducts the numerical simulation of load increment and load rejection adjustment operation of the power station, the motion law of single oblique wave caused by the turbine flow and its time-varying process at the dam upstream river.This article also analyzes motion law of non-constant wave at the dam upstream river and its influence on the navigation flow condition when the single oblique
Simulation conditions When Computational Fluid Dynamics (CFD) starts to calculate, the initial conditions required to know are flow, topography, engineering condition, etc.
Numerical simulation method General form for 3D incompressible Reynolds-averaged equation -- N-S Equation is Eq(1)
Conclusions The conclusions are as follows: Numerical simulation indicates that the load increment and load rejection regulation of power station operate at the fixed the turbine flow,the starting dam passing flow change impose little effect on the initial wave generation with its motion law in the river.The turbine flow velocity change leads to hydrodynamic characteristics change in the entrance area and the imposes influence on navigation flow condition of the approach channel.
Pumped storage power station vertical shaft type an outlet 3d data simulation [J].

CFD-ACE+ and CVDSim software are used for the simulation analysis.
Virtual Reactor CVD-SiC software was used in the simulation studies.
Both the experimental and simulation results show that the growth rates are enhanced by an increase in wafer rotation speed [Fig. 1(a)] and system pressure [Fig. 1(b)].
We surveyed adequate growth conditions of the high-temperature gas source method by computational simulation for the reactor model to achieve high-speed C-face 4H-SiC crystal growth.
The velocities were evaluated by the gas-flow simulation for the corresponding conditions as values at 10 mm below a seed crystal.

Numerical Simulation on Velocity Profiles of Mill Bearing Lubrication Qingxue Huang 1, a , Jianmei Wang 1, b , Yugui Li 1, a LiLifeng Ma 1, c and Chunjiang Zhao 1, a 1 Taiyuan University of Science and Technology, People's Republic of China a hqx@tyust.edu.cn, b wjmhdb@163.com, cmalifeng@163.com Keywords: Velocity profiles.
Summary The profile laws of the variation of velocity and velocity gradient along the circumferential and axial directions at different oil-film layers are consistent with the CFD results and the literatures, which validates the correctness of the mathematical model and the program, and also can provide references for further research on lubricating performance of oil film bearing in large-scale mill.

Therefore in some simulations rolling actions are usually simplified or not to be considered, sometimes only thermal stresses were calculated [4, 5].
Firstly, the thermal flow of Twin-Roll-Casting process was simulated by a CFD model; then the Anand's constitutive model, a temperature and rate dependent model for high temperature deformation, was employed to calculate the thermal mechanical stresses and deformation in the casting region.
Thermal flow simulation The schematic of twin-roll casting process is shown in Fig.1.
Based on the assumptions steady-state simulations were performed.
Temperature field of thermal flow simulation Th ij p ij e ijij εεεε &&&& ++= n p RT Q A ss             = exp~* ε& internal state of the material.