Wenjia Song
Fusion characteristics of volcanic ash relevant to aviation hazards
Song, Wenjia; Hess, Kai-Uwe; Damby, David E.; Wadsworth, Fabian B.; Lavallée, Yan; Cimarelli, Corrado; Dingwell, Donald B.
Authors
Kai-Uwe Hess
David E. Damby
Dr Fabian Wadsworth fabian.b.wadsworth@durham.ac.uk
Associate Professor
Yan Lavallée
Corrado Cimarelli
Donald B. Dingwell
Abstract
The fusion dynamics of volcanic ash strongly impacts deposition in hot parts of jet engines. In this study, we investigate the sintering behavior of volcanic ash using natural ash of intermediate composition, erupted in 2012 at Santiaguito Volcano, Guatemala. A material science procedure was followed in which we monitored the geometrical evolution of cylindrical‐shaped volcanic ash compact upon heating from 50 to 1400°C in a heating microscope. Combined morphological, mineralogical, and rheological analyses helped define the evolution of volcanic ash during fusion and sintering and constrain their sticking potential as well as their ability to flow at characteristic temperatures. For the ash investigated, 1240°C marks the onset of adhesion and flowability. The much higher fusibility of ash compared to that of typical test sands demonstrates for the need of a more extensive fusion characterization of volcanic ash in order to mitigate the risk posed on jet engine operation.
Citation
Song, W., Hess, K., Damby, D. E., Wadsworth, F. B., Lavallée, Y., Cimarelli, C., & Dingwell, D. B. (2014). Fusion characteristics of volcanic ash relevant to aviation hazards. Geophysical Research Letters, 41(7), 2326-2333. https://doi.org/10.1002/2013gl059182
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 7, 2014 |
Online Publication Date | Apr 7, 2014 |
Publication Date | Apr 16, 2014 |
Deposit Date | Mar 20, 2018 |
Publicly Available Date | Mar 28, 2024 |
Journal | Geophysical Research Letters |
Print ISSN | 0094-8276 |
Electronic ISSN | 1944-8007 |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 41 |
Issue | 7 |
Pages | 2326-2333 |
DOI | https://doi.org/10.1002/2013gl059182 |
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Copyright Statement
Song, Wenjia, Hess, Kai-Uwe, Damby, David E., Wadsworth, Fabian B., Lavallée, Yan, Cimarelli, Corrado & Dingwell, Donald B. (2014). Fusion characteristics of volcanic ash relevant to aviation hazards. Geophysical Research Letters 41(7): 2326-2333, 10.1002/2013GL059182 (DOI). To view the published open abstract, go to https://doi.org/ and enter the DOI.
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