Transient response of an erodable heat flux gauge using finite element analysis
Article
Article Title | Transient response of an erodable heat flux gauge using finite element analysis |
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ERA Journal ID | 3648 |
Article Category | Article |
Authors | |
Author | Buttsworth, David R. |
Journal Title | Proceedings of the Institution of Mechanical Engineers Part D: Journal of Automobile Engineering |
Journal Citation | 216 (8), pp. 701-716 |
Number of Pages | 16 |
Year | 2002 |
Place of Publication | London, United Kingdom |
ISSN | 0954-4070 |
Digital Object Identifier (DOI) | https://doi.org/10.1177/095440700221600808 |
Web Address (URL) | http://www.ingentaconnect.com/content/pep/jae/2002/00000216/00000008/art00008 |
Abstract | The transient response of an erodable ribbon element heat flux gauge has been assessed using a two-dimensional finite element (FE) analysis. Such transient heat flux gauges have previously been used for measurements in internal combustion (IC) engines. To identify the heat flux from the measurements of surface temperature, it is commonly assumed that the heat transfer within these devices is one-dimensional. A corollary of the one-dimensional treatment is that only one value of the thermal product, ck, is needed for identification of the transient heat flux, even though erodable heat flux gauges are constructed from at least two different materials. The current results demonstrate that two-dimensional transient heat conduction effects have a significant influence on the surface temperature measurements made with these devices. For the ribbon element gauge and timescales of interest in IC engine studies, using a one-dimensional analysis (and hence a single value of ck will lead to substantial inaccuracy in the derived heat flux measurements. |
Keywords | transient response; heat flux gauge; erodable thermocouple; engine heat transfer measurements; surface thermometry; insturmentation |
ANZSRC Field of Research 2020 | 400203. Automotive mechatronics and autonomous systems |
400799. Control engineering, mechatronics and robotics not elsewhere classified | |
401204. Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Oxford, United Kingdom |
https://research.usq.edu.au/item/9y502/transient-response-of-an-erodable-heat-flux-gauge-using-finite-element-analysis
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