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Simulation and Modeling: The structural model of the hexacopter drone was designed using SolidWorks simulator.
To analyze the aerodynamics of the hexacopter drone, the computational fluid dynamics (CFD) of the drone was also simulated using SolidWorks simulator.
The key simulation parameters were set as: gas type– air, wall thermal condition– adiabatic, flow type– laminar & turbulent, gravity– 9.8 meter/sec2, roughness– 0 mm, and temperature– 293.2 K.
Results and Discussion Simulation Results: We investigated the airflow distribution and air pressure distribution of the multi-functional drone at a wind velocity of 50 kilometer/hour using SolidWorks Computation Fluid Dynamics (CFD) analysis.
The CFD analysis ensures stable design of the multi-functional drone.

In this paper are presented some CFD results regarding combustion in an aircraft turbojet engine, for aviation fuels consisting of hydrocarbon mixtures.
The simulations were made in Fluent software and some results are presented in the following pictures Figs. 4 and 5.
For an aircraft engine the experimental validation is expensive, so the first step in this study is the simulation of the virtual model of constructive elements, like combustion chamber.

Through simulation analysis the performance of design objects can be estimated.
This article aims at the problem and the simulation model of the diesel is established.
However, the error is acceptable and does not affect the subsequent simulation.
The simulation of the diesel based on that has the credibility.
Kotnik. 3D-CFD Single Cylinder Coolant Flow Analysis of the SVERI 12V 150 Engine, China North Industries Group

Computational Fluid Dynamics (CFD) techniques provide a method to solve these problems.
So far, it is generally accepted that CFD codes have difficulties in estimating impact loads [14].
CFD methods are time consuming, making statistical estimations of response variables in sea difficult [4].
Discussion Establishing an inverse problem analysis approach for structural analysis can result in important advantages over simulation, numerical or theoretical methods.
In contrast, they are necessary for valid and accurate simulation, numerical or theoretical analysis.

China liuzheyoungman@163.com Keywords: Centrifugal fan, Numerical simulation, Flow separation, Stall characteristics; Abstract.
With the development of CFD, using numerical software to simulate the complex flow field has become an important method.
In this paper a detailed numerical simulation under different angle has been carried out based on the Realizable turbulence model with Fluent.
“Numerical Simulation on the Dynamic Stall Process of Airfoils in Transonic Flow”.ACTA AERODYNAMICA SINICA, vol.16,1998,pp.205-209
“Simulations of viscous transonic flows over lifting airfoils and wings”.Computers & Fluids,vol.36,2007,pp.39-52

Besides, the accuracy of the simulation model has been verified by calibration.
Study on the Envi-met simulation model ENVI-met, a kind of CFD (Computational Fluid Dynamics) software is a microclimate simulation software to simulate and evaluate the outdoor thermal environment on the local scale through thermodynamics and heat transfer theory, and it has a widely application for urban environment evaluation.
In addition, the numerical simulation of ENVI-met has been calibrated and verified to evaluate the cooling effects of greening.
Methodology In the research, computer simulation was combined with on-site measurement of environmental parameters, including two steps: (1) Model calibration, namely the difference between the simulation results and on-site test values is within the range of the instruments errors, which means the simulation model could be considered as the representative of the real environment and is acceptable to evaluate and predict the thermal environment; (2) Simulation of the scenarios.
To ensure the reliability of simulation results, the LBC parameters verified before were adapted in the simulation (Table2).

Numerical Simulation and Optimization on the variable oxygen of a 3000 T/H Ultra-supercritical Boiler Lingda ZENG 1,a, Zhongguang FU 1 and Hancai ZENG 2 1Key Laboratory of Condition Monitoring and Control for Power Plant Equipment (North China Electric Power University),Ministry of Education,Beijing 102206,China; 2State Key Laboratory of Coal Combustion (Huazhong University of Science and Technology),Wuhan 430074,China; apahuayang@163.com Keywords: ultra-supercritical boiler; combustion; variable load; optimization; numerical simulation Abstract.
In this paper, a 3000T/H Ultra-Supercritical Boiler is as a prototype,meanwhile using CFD software Fluent for simulating the opposed firing Fired Boiler variable load operating condition process in order to grasp the burning combustion characteristics of the boiler under changing conditions and provide the guidance information for adjusting and optimizing the buring process.
Calculation methods and boundary conditions The object for numerical simulation is a 1000MW ultra-supercritical boiler which take the method of opposed firing supercritical boiler transformer parameters and Π-type layout.Design and check the coal mixed with the coal of Jibei Mine and Yan Mine.
Simulation results and analysis When oxygen amount of 3.0,simulation of fly ash carbon content is 1.06%,pulverized coal burn rate was 99.68%,the simulation of the NOx emissions were 257 mg/m3 (6% O2),along with increased oxygen.

The left branch of the V-model is mainly based upon a simulation chain including multibody and contact simulations.
For EHL contacts, generally, iterative finite difference and half-space based multilevel and multi-integration (MLMI) solvers [11] or CFD approaches [12] can commonly be used.
Tribo-Simulation of the Contact.
Tribo-Simulation of the Contact.
Spikes, CFD Modeling of a Thermal and Shear-Thinning Elastohydrodynamic Line Contact.

Such problems are solved by multi field numerical simulation approach.
Multi-Field Simulation Modeling With rapid developments in numerical methods, especially in computational fluid dynamics (CFD), researchers are applying it in predicting and solving complex fluid structure interaction (FSI) problems.
The displaced shape from CSD is further coupled with computational fluid dynamics (CFD), from which new loadings are determined.
Coupling time duration of 120s with time step of 0.1s and transient analyses are also defined in this simulation.
Fig. 6 shows CFX simulation model with defined boundary conditions (BC).

The efficiency of the developed algorithm is demonstrated by the numerical experiments on the simulation of the three-dimensional turbulent steady flowfield generated by the transverse hydrogen injection into the supersonic air cross-flow.
Introduction At the present time, TVD (Total Variation Diminishing), ENO (Essentially Non-Oscillatory) and WENO (Weighted ENO) schemes are successful tools for numerical simulations of supersonic flows.
The efficiency of the developed algorithm is demonstrated by the numerical simulation of the three-dimensional turbulent steady flowfield generated by the transverse hydrogen injection into the supersonic air cross-flow by solving the Reynolds-averagedNavier-Stokes equationsclosedbythe turbulent model.
The methodology developed here is aplicated to the numerical simulation of the three-dimensional turbulent steady flowfield generated by the transverse hydrogen injection into the supersonic air cross-flow by solving the Reynolds-averaged Navier-Stokes equationsclosedbythe turbulent model.
Wilcox: Turbulence modeling for CFD (DCW Industries Inc., USA 2000) [9] Ye.