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Online since: January 2016
Authors: Carmen Bujoreanu, Edward Rakosi, Sorinel Gicu Talif, Carmen Ema Panaite
Measuring cycle of the engine
For example, in Fig. 6, Fig. 7 and Fig. 8 three load simulation diagrams recorded on chassis dynamometer are presented.
Subbarao, Commercial Vehicles Muffler Volume Optimization using CFD Simulation, SAE Technical Paper 2014-01-2440, 2014, doi:10.4271/2014-01-2440
Subbarao, Commercial Vehicles Muffler Volume Optimization using CFD Simulation, SAE Technical Paper 2014-01-2440, 2014, doi:10.4271/2014-01-2440
Online since: May 2013
Authors: Jia Sheng Wang, Xiao Yan Liu
planar line type causing negative pressure on the edge of the inner diameter, therefore, the distribution of the cavitation corrosion on the thrust bearing which applies this type of planar line is more extensive than that of others; the relative area of the pressure peak on the spiral groove thrust bearing formed by the arc line is the biggest (the absolute value of the peak is relatively lower), followed by the spiral groove thrust bearings formed by the spiral line and parabola line .In the junction between the slot and the dam along the circumferential direction, the variation of water film pressure gradient of the spiral groove formed by the spiral line is small, which feature will help enhance the stability of thrust bearing.
3.3 Results and Compares of Loading Capacity
Fig. 2 Comparison of the loading capacity of Fig.3 Comparison of the loading capacity of
spiral groove bearings with rotate speed change spiral groove bearings from experiment and numerical simulation
[5] Cheng Li, Liu Chao, Zhou Jiren, et al.Numerical Simulation on Geometrical Parameters for Open Pump Sump[J].Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1):50~55
[6] Shi Weidong, Li Qifeng, Lu Weigang, et al.Estimation and Experiment of Axial Thrust in Centrifugal Pump Based on CFD[J].Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1):60~63
[5] Cheng Li, Liu Chao, Zhou Jiren, et al.Numerical Simulation on Geometrical Parameters for Open Pump Sump[J].Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1):50~55
[6] Shi Weidong, Li Qifeng, Lu Weigang, et al.Estimation and Experiment of Axial Thrust in Centrifugal Pump Based on CFD[J].Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1):60~63
Online since: July 2011
Authors: Chao Wei, Ji Bin Hu, Jun Hua Hong
In this paper we first calculate the exit flow by CFD numerical analysis method in terms of different fluid viscosity and pressure drop Δpi .Then we calculate Cdi, Rei with different initial conditions.
Results analysis 3.1 Rectification of the model With the temperature of 80°C, the testing results of the leakage of the rotary seal compare with the theoretical calculation and simulation, shown in Fig.5 as below.
Dynamic Performance Simulation of Power Shift Clutch During Shift[J].
Results analysis 3.1 Rectification of the model With the temperature of 80°C, the testing results of the leakage of the rotary seal compare with the theoretical calculation and simulation, shown in Fig.5 as below.
Dynamic Performance Simulation of Power Shift Clutch During Shift[J].
Online since: October 2016
Authors: Takashi Sato, Miki Shinagawa, Edwin Soh, Yuuichiro Nakayama, Yasuhiko Fukuchi
In addition, a predictive approach using simulation was also proposed and reported [4]-[8].
Lim, Process modeling and CFD simulation of two-way abrasive flow machining, The international Jounal of Advanced Manufacturing Technology, 71, 5-8 (2014) 1077-1086.
Lim, Process modeling and CFD simulation of two-way abrasive flow machining, The international Jounal of Advanced Manufacturing Technology, 71, 5-8 (2014) 1077-1086.
Online since: October 2015
Authors: Zi Hui Hao, Ling Zhou, Wei Xuan Kong, Chao Yan
However, it’s difficult in modern CFD techniques based on massively parallel execution.
Our simulation results show similar trends to the DNS, therefore, it can be concluded that the “laminar + transition criteria” model is effective in predicting hypersonic 3D boundary layer transition.
Ma, Direct numerical simulation of hypersonic boundary layer transition over a blunt cone with a small angle of attack, Phys Fluids. 22 (2010), 025105
Our simulation results show similar trends to the DNS, therefore, it can be concluded that the “laminar + transition criteria” model is effective in predicting hypersonic 3D boundary layer transition.
Ma, Direct numerical simulation of hypersonic boundary layer transition over a blunt cone with a small angle of attack, Phys Fluids. 22 (2010), 025105
Online since: April 2015
Authors: Cheol Woo Park, Jong Hwan Yoon, Moon Kyu Kwak, Kyung Won Kim, Woo Hyeong Lee, Jae Heon Lee
Zheng et al. [4] performed numerical simulations and experiments through particle image velocimetry (PIV) to understand the evolution of the asymmetric pattern of baffled tube flow.
Li, CFD simulations of turbulent flow in baffle-filled membrane tubes, Separ. and Purif.
Li, CFD simulations of turbulent flow in baffle-filled membrane tubes, Separ. and Purif.
Online since: December 2009
Authors: Yong Yan Wang, Ze Rong Zhang
Studying on
Computational mechanics simulation and structure prediction, Vibration and control,etc.
Xiao: Performance Analysis on Evaporative Condenser with Fins and Numerical Simulation by Using CFD Software, Fluid Machinery, Vol. 36-10 (2008), p. 78~81.
Xiao: Performance Analysis on Evaporative Condenser with Fins and Numerical Simulation by Using CFD Software, Fluid Machinery, Vol. 36-10 (2008), p. 78~81.
Online since: October 2011
Authors: Yue Ding, Hao Yang, Xi Bin Wang, Wen Hao Zhou, Ze Ping Fang
The Distribution of Oil Pressure in Tube Circuit System
Although, in present ,many CFD commercial software are increasingly competent for the calculation in precision calculation projects ,we also need to make some assumptions to simplify the calculation in this paper during determining the distribution of axial oil pressure along the flowing direction .But the axial scale length of this oil pipe is short enough at 22 centimeter ,and the oil velocity is so slow, meanwhile the shape of oil pipe’s cross section area is rarely changing along the oil flowing direction .So the oil pressure is changing very little along the oil flowing direction that it can be seen as a constant parameter .
Koeppel, Comparative finite element analysis of the stress–strain states in three different bonded solid oxide fuel cell seal designs [J], Journal of Power Sources Volume 180, Issue 1, 15 May 2008, Pages 343-353 [8]Weihua.PU, Feng Wang, Optimized design of key structural parameter of common rail injector by orthogonal simulation [J],SHIP SCIENCE AND TECHONOLOGY, 2010 Aug Volume 32 No8 2004
[9] Wang Jun,Zhang Youtong,Lin Xiuxia, Design and Simulation on Common Rail Line of High Pressure Common Rail Injection System in Military Diesel Engine [J], Journal of Academy of Armored Force Engineering ,Jun 2008, Vol. 22 No. 3 [10] Chao.Liang, Jianguo.Yu, Study of Pressure Fluctuation of Diesel Common Rail System [J],Chinese Agricultural Mechanizition , 2010 No.1 [11] Arturode .Risi, Fabrizio.
Koeppel, Comparative finite element analysis of the stress–strain states in three different bonded solid oxide fuel cell seal designs [J], Journal of Power Sources Volume 180, Issue 1, 15 May 2008, Pages 343-353 [8]Weihua.PU, Feng Wang, Optimized design of key structural parameter of common rail injector by orthogonal simulation [J],SHIP SCIENCE AND TECHONOLOGY, 2010 Aug Volume 32 No8 2004
[9] Wang Jun,Zhang Youtong,Lin Xiuxia, Design and Simulation on Common Rail Line of High Pressure Common Rail Injection System in Military Diesel Engine [J], Journal of Academy of Armored Force Engineering ,Jun 2008, Vol. 22 No. 3 [10] Chao.Liang, Jianguo.Yu, Study of Pressure Fluctuation of Diesel Common Rail System [J],Chinese Agricultural Mechanizition , 2010 No.1 [11] Arturode .Risi, Fabrizio.
Online since: June 2014
Authors: Hong Wei Zhang, Song Xin, Chong Zhan Jia
High temperature coal face heat injury mechanism and airflow characteristics of heat - flow theory and numerical simulation [D].
Computational fluid dynamics analysis -CFD Software Principles and Applications [M].
FLUENT fluid engineering simulation examples and application [M].
Computational fluid dynamics analysis -CFD Software Principles and Applications [M].
FLUENT fluid engineering simulation examples and application [M].
Online since: September 2008
Authors: Mathias Paschen, Hans Joachim Winkel, Henning Knuths
All simulation models are based on two significant assumptions namely all parts of the gear are
exposed to the same undisturbed water current and the hydrodynamic loads may be represented by
dimensionless hydrodynamic coefficients which depend on the Reynolds number, the extended
Froude number, see Stengel & Fridman (1977), and a couple of different geometrical and physical
parameters of the net respectively the net material only.
It is sufficiently known that the application of these coefficients may lead in some cases to excellent simulation results but in other cases to those which don't satisfy the expectations of experts.
Because of size and flexibility of modern nets and due to substantial fluid-structure interactions it does not seem to be realistic to expect a powerful as well as a handy CFD-based computer programme which can be used for a precise prediction of shape, load and stress distribution of a complete trawl net in the next few years.
Lee: Contributions of Theory of Fishing Gears and related marine Systems, Vol.4, Pukyong National University, Busan, 2006 Hu, F.; Shiode, D.; Wan, R.; Tokai, T. (2006) Accuracy evaluation of numerical simulation of mid-water trawl nets.
KG, Rostock, 2002 Priour, D. (2000) Study of a grid in a cod-end: numerical simulations.
It is sufficiently known that the application of these coefficients may lead in some cases to excellent simulation results but in other cases to those which don't satisfy the expectations of experts.
Because of size and flexibility of modern nets and due to substantial fluid-structure interactions it does not seem to be realistic to expect a powerful as well as a handy CFD-based computer programme which can be used for a precise prediction of shape, load and stress distribution of a complete trawl net in the next few years.
Lee: Contributions of Theory of Fishing Gears and related marine Systems, Vol.4, Pukyong National University, Busan, 2006 Hu, F.; Shiode, D.; Wan, R.; Tokai, T. (2006) Accuracy evaluation of numerical simulation of mid-water trawl nets.
KG, Rostock, 2002 Priour, D. (2000) Study of a grid in a cod-end: numerical simulations.