Instantaneous heat flux simulation of S.I. engines: comparison of unsteady thermal boundary layer modelling with experimental data

Agrira, Abdalla and Buttsworth, David R. and Yusaf, Talal (2009) Instantaneous heat flux simulation of S.I. engines: comparison of unsteady thermal boundary layer modelling with experimental data. In: 3rd International Conference on Energy and Environment (ICEE 2009): Advancement Towards Global Sustainability , 7-8 Dec 2009, Malacca, Malaysia.


Due to the inherently unsteady environment of the internal combustion engine, unsteady thermal boundary layer modelling could make a useful contribution. Instantaneous heat flux in a spark ignition internal combustion engine was predicted using a quasi-one dimensional engine cycle simulation program developed in Matlab. Simulation parameters were tuned within reasonable limits until good agreement between the simulated and measured pressure was achieved. To some degree, the heat flux simulated using Annand's model agreed with the experimental data, particularly with respect to the averaging process over the unburned and burned zones. However, no such agreement was found when the unsteady thermal boundary layer model was applied. Implementing a model for turbulent thermal conductivity in the unsteady thermal boundary layer simulation is expected to improve the simulation.

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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 31 Dec 2009 06:23
Last Modified: 09 Feb 2015 03:44
Uncontrolled Keywords: thermal boundary layer; spark ignition; combustion; instantaneous heat flux; simulation
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091305 Energy Generation, Conversion and Storage Engineering
09 Engineering > 0902 Automotive Engineering > 090201 Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
09 Engineering > 0915 Interdisciplinary Engineering > 091502 Computational Heat Transfer
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1109/ICEENVIRON.2009.5398679

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