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Online since: April 2017
Authors: Mohamed Bouzit, Houssem Laidoudi
(12)
Numerical procedure
The numerical simulation is carried out by using the commercial CFD package ANSYS-CFX.
Fig. 2: Typical grid used for simulation.
The simulations results are presented in the form of streamlines and isotherms contours along with variations of some representative global flow and heat transfer quantities.
Fig. 2: Typical grid used for simulation.
The simulations results are presented in the form of streamlines and isotherms contours along with variations of some representative global flow and heat transfer quantities.
Online since: March 2025
Authors: Huyen Lynh Duong, Quoc Nguyen Banh, Van Keo Dong, Xuan Hiep Tran, Anh Son Tran
Future simulations and experiments using commercial software, such as Moldex3D, may help validate these theoretical calculations and refine the design process for more optimized microfluidic systems.
4.
Future work will address this limitation by incorporating the effects of channel orientation, with validation of the model anticipated through the use of commercial simulation software, such as Moldex3D.
Wilkes, Fluid Mechanics for Chemical Engineers with Microfluidics, CFD, and COMSOL Multiphysics 5, Third Edition, Pearson, 2017 [23] A.
Jayaraj, Computational Simulation of Electroosmotic Flow Using Immersed Boundary Method, Int J Micronano Scale Transp. 2 (2011) 129–150
Future work will address this limitation by incorporating the effects of channel orientation, with validation of the model anticipated through the use of commercial simulation software, such as Moldex3D.
Wilkes, Fluid Mechanics for Chemical Engineers with Microfluidics, CFD, and COMSOL Multiphysics 5, Third Edition, Pearson, 2017 [23] A.
Jayaraj, Computational Simulation of Electroosmotic Flow Using Immersed Boundary Method, Int J Micronano Scale Transp. 2 (2011) 129–150
Online since: March 2015
Authors: Yao Tai Zhu, Xiao Qian Qian, Min Li Wu, Kuang Liang Qian, Fang Ruan, Meng Ping Feng
Therefore, Using 2-D CFD model to replace widely used building thermal simulation software to analysis intermittent and compartmental energy consumption of cooling/heating by air-conditioners for residential buildings in hot summer and cold winter zone in China is necessary.
A typical two-bedroom flat of a certain residential district in Hangzhou China is selected here as the computational fluid dynamics (Fluent 12.0) simulation model.
In this simulation model, the daytime solar radiation did not directly affect the typical daily heating/cooling load,because the air condition operating during the night (22:00-6:00); (v) assuming that the room is empty and excluding the impact of the furniture thermal storage effect.
A typical two-bedroom flat of a certain residential district in Hangzhou China is selected here as the computational fluid dynamics (Fluent 12.0) simulation model.
In this simulation model, the daytime solar radiation did not directly affect the typical daily heating/cooling load,because the air condition operating during the night (22:00-6:00); (v) assuming that the room is empty and excluding the impact of the furniture thermal storage effect.
Online since: September 2011
Authors: David Moens, Stijn Donders, Laszlo Farkas, Michael Hack, Herman Van der Auweraer, Roberto d’Ippolito, Wim Desmet
The ever continuing advances in terms of IT resources are mainly being dedicated by analysts to increasing CAE model complexity, for which then only a limited number of deterministic simulations are performed; this holds for a range of CAE approaches, including Finite Element (FE) analysis, Computational Fluid Dynamics (CFD) and Multi-Body Simulation (MBS).
For high-dimensional problems (number of inputs >15), alternative Advanced Simulation Methods have been worked out [4], with Line Sampling and Subset Simulation the most relevant.
Sources of uncertainties in different design engineering disciplines 2.1 Automotive crash and safety simulations.
The suspension subsystem is part of a complete vehicle that has been analyzed using a multi-body simulation.
Conclusions This paper deals with the role and importance of uncertainties in different engineering design and test disciplines: crash and safety simulations, mechatronics system simulations and modal analysis.
For high-dimensional problems (number of inputs >15), alternative Advanced Simulation Methods have been worked out [4], with Line Sampling and Subset Simulation the most relevant.
Sources of uncertainties in different design engineering disciplines 2.1 Automotive crash and safety simulations.
The suspension subsystem is part of a complete vehicle that has been analyzed using a multi-body simulation.
Conclusions This paper deals with the role and importance of uncertainties in different engineering design and test disciplines: crash and safety simulations, mechatronics system simulations and modal analysis.
Online since: June 2016
Authors: Oronzio Manca, Sergio Nardini, Bernardo Buonomo, D. Ricci
The numerical simulations highlighted that confinement effects affected the recirculating bubble detaching from the target surface.
On the experimental side, it mentioned the investigation, pointed out by Prakash et al., who considered turbulent round jets in a cylindrical enclosure with porous media: they presented laser Doppler velocimetry measurements and carried out comparisons with the CFD simulations [91],[92].
Simulations showed a significant enhancement close to the end of the heated part of the plate and an increase of Nusselt number for high Peclet numbers.
The governing equations were solved numerically employing the Ansys-Fluent CFD code.
Saeed (2009), Simulation of Heat Transfer from Hot-Air Jets impinging a Three-Dimensional Concave Surface, Journal of Aircraft 46, pp. 721-725
On the experimental side, it mentioned the investigation, pointed out by Prakash et al., who considered turbulent round jets in a cylindrical enclosure with porous media: they presented laser Doppler velocimetry measurements and carried out comparisons with the CFD simulations [91],[92].
Simulations showed a significant enhancement close to the end of the heated part of the plate and an increase of Nusselt number for high Peclet numbers.
The governing equations were solved numerically employing the Ansys-Fluent CFD code.
Saeed (2009), Simulation of Heat Transfer from Hot-Air Jets impinging a Three-Dimensional Concave Surface, Journal of Aircraft 46, pp. 721-725
Online since: February 2019
Authors: Axel von der Weth, Frederik Arbeiter, Dmitry Klimenko, Volker Pasler, Georg Schlindwein
A branch & bound (B&B) [13,14] fitting algorithm, which compares the computed signal and the measured signal, and changes the assumed transport parameters to systematically reduce the (chi-square) differences between simulation and experiment.
The branch & bound algorithm runs for a defined numbers of super cycles, after which the deviation between experiment and simulation can be evaluated.
Concerning b): The time spread function can be derived either experimentally (applying a controlled mixture of gases in the permeate chamber) or can be simulated by computational fluid dynamics (CFD).
Arbeiter et al, Simulations and uncertainty analysis for a hydrogen diffusion experiment using a “two side purged membrane” setup, Fus.
The branch & bound algorithm runs for a defined numbers of super cycles, after which the deviation between experiment and simulation can be evaluated.
Concerning b): The time spread function can be derived either experimentally (applying a controlled mixture of gases in the permeate chamber) or can be simulated by computational fluid dynamics (CFD).
Arbeiter et al, Simulations and uncertainty analysis for a hydrogen diffusion experiment using a “two side purged membrane” setup, Fus.
Online since: June 2021
Authors: Khathutshelo Kentridge Mantsha, Dawood Ahmed Desai, P. Stephan Heyns
Numerical Simulation
FEM model.
ABAQUS 6.14-1 was used to solve all the simulations performed in this paper on a high-performance desktop.
A PC with a 64-bit operating system was used for the simulations.
A local stiffness reduction method was used to model the cracks in the numerical simulations.
Maré, An investigation of CFD simulation for estimation of turbine RUL, Master of Engineering (Mechanical Engineering), Department of Mechanical and Aeronautical Engineering, University of Pretoria, Pretoria, 2018
ABAQUS 6.14-1 was used to solve all the simulations performed in this paper on a high-performance desktop.
A PC with a 64-bit operating system was used for the simulations.
A local stiffness reduction method was used to model the cracks in the numerical simulations.
Maré, An investigation of CFD simulation for estimation of turbine RUL, Master of Engineering (Mechanical Engineering), Department of Mechanical and Aeronautical Engineering, University of Pretoria, Pretoria, 2018
Online since: May 2023
Authors: Haroun A K Shahad, Dhirgham Alkhafaji, Mohammed A. Al-Tayyar
Afonso et. al. [19], reported the influence of flame and flame stability by the design of the burner through a numerical simulation for the combustion of premixed hydrogen/air in an undulate microchannel.
Dabade et al., “CFD Simulation of Confined Non-Premixed Flames,” in Heat Transfer Summer Conference, vol. 44786, pp. 235–242, 2012
Dabade et al., “CFD Simulation of Confined Non-Premixed Flames,” in Heat Transfer Summer Conference, vol. 44786, pp. 235–242, 2012
Online since: April 2020
Authors: Ganiyu I. Lawal, Gbeminiyi M. Sobamowo, Chijioke Peter Egole, Henry E. Mgbemere
Mathematical modelling and computer simulation have wide range of applications in metallurgical systems and have since been embraced by Materials and Metallurgical Engineers in solving many problems involving solidification.
Simulation was run for different times and these show levels of temperature as solidification progresses.
Beckermann, Simulation of Micro/Macrosegregation during the Solidification of a Low-Alloy Steel, ISIJ International, Vol. 35, No. 6, 1995
Egole, Simulation of Temperature Distribution and Solidification in Direct Chill Casting of Al-3%Si Alloy, International Journal of Numerical Methods and Applications, Vol. 15, No. 1, 2016
Raad, Procedure for Estimation and Reporting Uncertainty Due to Discretization in CFD Applications, J.
Simulation was run for different times and these show levels of temperature as solidification progresses.
Beckermann, Simulation of Micro/Macrosegregation during the Solidification of a Low-Alloy Steel, ISIJ International, Vol. 35, No. 6, 1995
Egole, Simulation of Temperature Distribution and Solidification in Direct Chill Casting of Al-3%Si Alloy, International Journal of Numerical Methods and Applications, Vol. 15, No. 1, 2016
Raad, Procedure for Estimation and Reporting Uncertainty Due to Discretization in CFD Applications, J.
Online since: October 2012
Authors: Kuan Ming Li
In order to study the penetration of the cutting fluid to the cutting zone, the computational fluid dynamics (CFD) simulation was also performed.
Liu, Investigations of tool edge radius effect in micromachining: A FEM simulation approach, Journal of Materials Processing Technology, 195 (2008) 204-211.
Liu, Investigations of tool edge radius effect in micromachining: A FEM simulation approach, Journal of Materials Processing Technology, 195 (2008) 204-211.