Stress fields of solid flow in a model blast furnace

Haiping Zhu, Zongyan Zhou, Aibing Yu, Paul Zulli

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

The computational fluid dynamics-discrete element method approach, supported by an averaging technique, has been employed to quantitatively investigate the stress distributions of solid flow in a model blast furnace (BF). The results indicate that large normal stresses are mainly observed in the lower central part of the BF, whilst small normal stresses in the vicinity of the raceway. In the upper part, the vertical normal stress varies little horizontally in the central region but reduces a bit near the wall, whereas the horizontal normal stress has a relatively uniform distribution on the whole cross section. The shear stress has its largest magnitude in two symmetrical regions close to the stagnant zone. The couple stress can be ignored except for the regions close to the walls. The stress and couple stress are both affected by gas flow rate. In particular, increasing gas flow rate will decrease the magnitude of the stress and couple stress. The internal friction coefficient is not dependent on the inertial number for the solid flow in a BF, but it may rely on the inertial number in some specific flow regions for the cases without gas and with low gas flow rates.
Original languageEnglish
Title of host publicationGranular Matter: 4th International Conference on Discrete Element Methods (DEM) 07
EditorsStefan Luding, Paul Cleary
Place of PublicationHeidelberg Germany
PublisherSpringer
Pages269 - 280
Number of pages12
Volume11
ISBN (Print)1434-5021
DOIs
Publication statusPublished - 2009
Externally publishedYes
EventInternational Conference on Discrete Element Methods (DEM) - Brisbane QLD Australia, Heidelberg Germany
Duration: 1 Jan 2009 → …

Conference

ConferenceInternational Conference on Discrete Element Methods (DEM)
CityHeidelberg Germany
Period1/01/09 → …

Cite this

Zhu, H., Zhou, Z., Yu, A., & Zulli, P. (2009). Stress fields of solid flow in a model blast furnace. In S. Luding, & P. Cleary (Eds.), Granular Matter: 4th International Conference on Discrete Element Methods (DEM) 07 (Vol. 11, pp. 269 - 280). Heidelberg Germany: Springer. https://doi.org/10.1007/s10035-008-0123-1
Zhu, Haiping ; Zhou, Zongyan ; Yu, Aibing ; Zulli, Paul. / Stress fields of solid flow in a model blast furnace. Granular Matter: 4th International Conference on Discrete Element Methods (DEM) 07. editor / Stefan Luding ; Paul Cleary. Vol. 11 Heidelberg Germany : Springer, 2009. pp. 269 - 280
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abstract = "The computational fluid dynamics-discrete element method approach, supported by an averaging technique, has been employed to quantitatively investigate the stress distributions of solid flow in a model blast furnace (BF). The results indicate that large normal stresses are mainly observed in the lower central part of the BF, whilst small normal stresses in the vicinity of the raceway. In the upper part, the vertical normal stress varies little horizontally in the central region but reduces a bit near the wall, whereas the horizontal normal stress has a relatively uniform distribution on the whole cross section. The shear stress has its largest magnitude in two symmetrical regions close to the stagnant zone. The couple stress can be ignored except for the regions close to the walls. The stress and couple stress are both affected by gas flow rate. In particular, increasing gas flow rate will decrease the magnitude of the stress and couple stress. The internal friction coefficient is not dependent on the inertial number for the solid flow in a BF, but it may rely on the inertial number in some specific flow regions for the cases without gas and with low gas flow rates.",
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Zhu, H, Zhou, Z, Yu, A & Zulli, P 2009, Stress fields of solid flow in a model blast furnace. in S Luding & P Cleary (eds), Granular Matter: 4th International Conference on Discrete Element Methods (DEM) 07. vol. 11, Springer, Heidelberg Germany, pp. 269 - 280, International Conference on Discrete Element Methods (DEM), Heidelberg Germany, 1/01/09. https://doi.org/10.1007/s10035-008-0123-1

Stress fields of solid flow in a model blast furnace. / Zhu, Haiping; Zhou, Zongyan; Yu, Aibing; Zulli, Paul.

Granular Matter: 4th International Conference on Discrete Element Methods (DEM) 07. ed. / Stefan Luding; Paul Cleary. Vol. 11 Heidelberg Germany : Springer, 2009. p. 269 - 280.

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

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AB - The computational fluid dynamics-discrete element method approach, supported by an averaging technique, has been employed to quantitatively investigate the stress distributions of solid flow in a model blast furnace (BF). The results indicate that large normal stresses are mainly observed in the lower central part of the BF, whilst small normal stresses in the vicinity of the raceway. In the upper part, the vertical normal stress varies little horizontally in the central region but reduces a bit near the wall, whereas the horizontal normal stress has a relatively uniform distribution on the whole cross section. The shear stress has its largest magnitude in two symmetrical regions close to the stagnant zone. The couple stress can be ignored except for the regions close to the walls. The stress and couple stress are both affected by gas flow rate. In particular, increasing gas flow rate will decrease the magnitude of the stress and couple stress. The internal friction coefficient is not dependent on the inertial number for the solid flow in a BF, but it may rely on the inertial number in some specific flow regions for the cases without gas and with low gas flow rates.

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Zhu H, Zhou Z, Yu A, Zulli P. Stress fields of solid flow in a model blast furnace. In Luding S, Cleary P, editors, Granular Matter: 4th International Conference on Discrete Element Methods (DEM) 07. Vol. 11. Heidelberg Germany: Springer. 2009. p. 269 - 280 https://doi.org/10.1007/s10035-008-0123-1