Investigation of granular impact using positron emission particle tracking

Handle URI:
http://hdl.handle.net/10754/564117
Title:
Investigation of granular impact using positron emission particle tracking
Authors:
Marston, Jeremy O.; Thoroddsen, Sigurdur T. ( 0000-0001-6997-4311 )
Abstract:
We present results from an experimental study of granular impact using a combination of high-speed video and positron emission particle tracking (PEPT). The PEPT technique exploits the annihilation of photons from positron decay to determine the position of tracer particles either inside a small granular bed or attached to the object which impacts the bed. We use dense spheres as impactors and the granular beds are comprised of glass beads which are fluidised to achieve a range of different initial packing states. For the first time, we have simultaneously investigated both the trajectory of the sphere, the motion of particles in a 3-D granular bed and particles which jump into the resultant jet, which arises from the collapse of the cavity formed by the impacting sphere.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; High-Speed Fluids Imaging Laboratory
Publisher:
Elsevier BV
Journal:
Powder Technology
Issue Date:
Apr-2015
DOI:
10.1016/j.powtec.2015.01.033
Type:
Article
ISSN:
00325910
Sponsors:
This work was partially supported by an Academic Excellence Alliance grant awarded by the KAUST Office of Competitive Research Funds number 7000000024. The experimental work was conducted whilst J.O.M. was on a research visit to the University of Birmingham. The authors thank Andy Ingram for the assistance and advice with the experimental setup, and Thomas Leadbeater, Joseph Gargiuli and Dave Parker for assisting with the experiments and analysis.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorMarston, Jeremy O.en
dc.contributor.authorThoroddsen, Sigurdur T.en
dc.date.accessioned2015-08-03T12:32:54Zen
dc.date.available2015-08-03T12:32:54Zen
dc.date.issued2015-04en
dc.identifier.issn00325910en
dc.identifier.doi10.1016/j.powtec.2015.01.033en
dc.identifier.urihttp://hdl.handle.net/10754/564117en
dc.description.abstractWe present results from an experimental study of granular impact using a combination of high-speed video and positron emission particle tracking (PEPT). The PEPT technique exploits the annihilation of photons from positron decay to determine the position of tracer particles either inside a small granular bed or attached to the object which impacts the bed. We use dense spheres as impactors and the granular beds are comprised of glass beads which are fluidised to achieve a range of different initial packing states. For the first time, we have simultaneously investigated both the trajectory of the sphere, the motion of particles in a 3-D granular bed and particles which jump into the resultant jet, which arises from the collapse of the cavity formed by the impacting sphere.en
dc.description.sponsorshipThis work was partially supported by an Academic Excellence Alliance grant awarded by the KAUST Office of Competitive Research Funds number 7000000024. The experimental work was conducted whilst J.O.M. was on a research visit to the University of Birmingham. The authors thank Andy Ingram for the assistance and advice with the experimental setup, and Thomas Leadbeater, Joseph Gargiuli and Dave Parker for assisting with the experiments and analysis.en
dc.publisherElsevier BVen
dc.subjectFluidisationen
dc.subjectGranular impacten
dc.subjectPEPTen
dc.titleInvestigation of granular impact using positron emission particle trackingen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentHigh-Speed Fluids Imaging Laboratoryen
dc.identifier.journalPowder Technologyen
dc.contributor.institutionDepartment of Chemical Engineering, Texas Tech UniversityLubbock, TX, United Statesen
kaust.authorThoroddsen, Sigurdur T.en
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