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Online since: May 2015
Authors: Panagiotis Kyratsis, Athanasios Manavis
Different researchers have developed a variety of simulation methodologies.
Drilling Simulations CAD based simulation has been applied in a number of different applications.
The effect of the friction development was investigated with FE simulations as well.
Zhang et al. [6] presented a CAD/CFD method in order to optimize the design parameters of the chip removal structure in deep-hole drilling.
Li, Optimisation design of chip removal structure in the deep-hole drilling based on CAD/CFD, 4th International Seminar on Modern Cutting and Measurement Engineering.
Online since: December 2013
Authors: Yan Yu, Dong Sheng Xia, Hui Chen Zhang
Numerical Simulation of Magnetostriction-Induced Cavitation Flow Dongsheng Xia1,a, Yan Yu1,b and Huichen Zhang1,c 1Department of Mechanical Engineering, Dalian Maritime University, Dalian 116026, China axia@dlmu.edu.cn, byyan_apple@sina.com, chczhang@dlmu.edu.cn Keywords: Computational Fluid Dynamics, Numerical Simulation, Magnetostriction Apparatus, Ultrasonic Cavitation Flow, Cavitation Erosion Abstract.
Recently, with development of computational fluid dynamics (CFD) and progress of cavitation model, numerical simulation becomes an available and effective approach to research the ultrasonic cavitation flow.
The structured grids were created by using ICEM CFD.
Prior to simulation of the unsteady cavitation flow, the steady flow computation without considering vibration of the specimen was carried out and the computational result was used as the initial flow field of the unsteady cavitation-flow computation.
Conclusions The “full cavitation model” with the SST k-ω turbulence model was applied to simulate the magnetostriction-induced cavitation flow by the CFD software Fluent.
Online since: January 2012
Authors: Si Zhong Chen, Jun Ni, Da Feng, Xu Jie Wang, Jia Xin Hao
In recent years, the virtual prototyping technology(VPT) has became main research approach in aerodynamics and dynamics researches of automobile with the popularization of mechanical system simulation software and computational fluid dynamics(CFD) software.
Linear step crosswind is chose to perform the simulation.
The simulation is performed respectively.
Computational Fluid Dynamics (CFD) Simulation of Drag Reduction by Riblets on Automobile.
Use the CFD for the Aerodynamic Optimization of the Car Shape: Problems and Application. 4th European Automotive Simulation Conference.
Online since: August 2014
Authors: Xu Liu, Wei Liu, Yun Fei Zhao
Dynamics Characterization of Missiles with Control Flaps Based on CFD Liu Xua, Liu Weib and Zhao Yunfeic College of Areospace Science and Engineering, National University of Defense Technology, Changsha, China anudt@sina.cn, bfishfather6525@sina.com, czhaoyf08@126.com Keywords: CFD; Damping-in-pitch derivative; Damping-in-roll derivative; Forced-harmonic analysis Abstract.
Numerical simulation and physical characteristics analysis for slender wing rock [J].
NND schemes and their applications to numerical simulation of two-and three-dimensional flows [J].
CFD Computation of Magnus Moment and Roll Damping Moment of a Spinning Projectile.
CFD predictions of dynamic derivatives for missiles [C]. 40th AIAA Aerospace Sciences Meeting, 2002
Online since: December 2015
Authors: Zhao Gang, Mazhar Ul Haq, S.M. Aftab, Zhuang Zhi Sun
Liu and Kawachi [15, 16] used the CFD method to simulate 2D and 3D dimensional hydrodynamics of Tadpole locomotion.
Fluid loads in structural applications and structural deformation in CFD analysis are considered in FSI.
The displaced shape from CSD is further coupled with computational fluid dynamics (CFD), from which new loadings are determined.
Fig. 4 shows CFX simulation model with defined boundary conditions (BC).
Dynamic analysis of the fluid, surrounding the assembly, is conducted by CFD.
Online since: January 2014
Authors: Antônio Gilson Barbosa de Lima, Severino Rodrigues de Farias Neto, B.E. Leite, Lígia Rafaely Barbosa Sarmento
Hydrodynamics of Oil-Water with Leakage by CFD L.R.B.
All simulations were carried out using the Ansys CFX® commercial code.
The mesh was made with the support of ICEM-CFD 12.0, which after various refinements resulted in an unstructured mesh of 520780 tetrahedral elements.
The fluid properties and initial boundary conditions used in the simulation are shown in Table 1.
In order to optimize the simulation time, the time steps were modified along the simulation.
Online since: July 2015
Authors: Krishna Murari Pandey, Sukanta Roga
Sivasakthivel, CFD Analysis of Mixing and Combustion of a Hydrogen Fueled Scramjet Combustor with a Strut Injector by Using Fluent Software, International Journal of Engineering and Technology, Vol.3, pp.446-453 (2011)
Reddy K.K, Numerical Simulation of Wall Injection with Cavity in Supersonic Flows of Scramjet Combustion, International Journal of Soft Computing and Engineering, Vol.2, pp.142-150 (2012)
Radhakrishnan, Simulation of Unsteady Hypersonic Combustion around Projectiles in an Expansion Tube.
Roga, CFD Analysis of Scramjet Combustor with Non-Premixed Turbulence Model Using Ramp Injector, Applied Mechanics and Materials, Vol.555, pp.18-25, doi:10.4028/www.scientific.net/AMM.555.18 (2014)
Roga, CFD Analysis of Hypersonic Combustion of H2-Fueled Scramjet Combustor with Cavity Based Fuel Injector at Flight Mach 6, Scientific.Net, Applied Mechanics and Materials, Vol. 656, pp.53-63, doi:10.4028/www.scientific.net/AMM.656.53 (2014).
Online since: July 2015
Authors: Abu Bakar, Hassan Akbar, Yu Qin Jiao
Although separation bubbles were not entirely eliminated in suction and blowing simulation, they either reduced or moved into the downstream.
Flow separation control by synthetic jets on an NACA 0015 airfoil by using Large Eddy Simulation method was done in 2008 by You and Moin [4].
ICEM CFD is used for grid generation while reynolds averaged Navier Stokes (RANS) equations have been solved using a commercial CFD solver FLUENT.
First the comparison of CFD simulations with available experimental data of the airfoil without blowing is presented as a baseline validation.
A good agreement of the CFD simulations with the experimental data is obtained for pressure distribution and aerodynamic coefficients.
Online since: January 2011
Authors: Lie Yu, Mamtimin Gheni, Ji Zhe Hai, Wei Chen, Wei Bing Liu
The software of computational fluid Dynamics (CFD) and the standard k-ε turbulence model are used in the numerical simulation.To simulate the coupling problems of fluid and solid,the numerical models by considering the heat transfer problem coupling with the solid and fluid have been developed.The internal flow field in PSSS was numerically simulated by an effective method for solving integrated coupling problems.
When carrying out numerical simulation must meet the following three continuity of boundary.
In the CFD calculation meshing is one of the important factors for solution accuracy and speed.
Numerical simulation results (a) Temperature field (b) Total deformation (c) Thermal strain Fig. 2 Numerical simulation results of outer cylinder The results showed that near bearing center appears uniform temperature distribution (as shown Fig.2 (a) ).
Takahashi: CFD Studies of Industrial Gas Turbine Exhaust Diffusers (Proceedings of the International Gas Turbine Congress Tokyo 2003) [2] H.
Online since: August 2011
Authors: Yan Li, Fang Feng, Wen Qiang Tian, Kotaro Tagawa
Numerical simulation on the static torque performance of vertical axis wind turbine with different blade airfoils Yan Li1,a, Fang Feng2,b, Wenqiang Tian1,c and Kotaro Tagawa3,d 1, Engineering College, Northeast Agricultural University, China 2College of Science, Northeast Agricultural University, China 3Faculty of Regional Sciences, Tottori University, Japan a ly_neau@yahoo.com.cn, b fengfang1026@yahoo.com.cn, c twq888666@163.com dtagawa@rstu.jp Keywords: vertical axis wind turbine; blade airfoil; numerical simulation; static torque; flow field Abstract.
In order to research the static torque characteristics of SB-VAWT with symmetrical and non-symmetrical blade airfoil, numerical simulations by 2D CFD method were carried out on three kinds of blade airfoils including NACA0018, NACA2418 and NACA4418 at different azimuth angles.
In this study, bend which is one of the most important factors which affects the starting characteristics of the SB-VAWT was researched by numerical computations in a CFD package based on the 2 dimensions incompressible steady flow.
The theoretical basis of the simulation was the continuity equation, momentum equation and energy equation.
Through this simulation, the static torque coefficient at the center of wind turbine and the flow near the wind turbine could be obtained.
Showing 1911 to 1920 of 5225 items