RUcore: Rutgers University Community Repository
Characterization of the flow field and shape of de-fluidized regions in the wake of large submerged objects in small particle fluidized beds
Descriptive
TitleInfo
Title
Characterization of the flow field and shape of de-fluidized regions in the wake of large submerged objects in small particle fluidized beds
Name
(type = personal)
NamePart
(type = family)
Rao
NamePart
(type = given)
Prakash
NamePart
(type = date)
1982
DisplayForm
Prakash Rao
Role
RoleTerm
(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Muller
NamePart
(type = given)
Michael R
DisplayForm
Michael R Muller
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Cook - Chennault
NamePart
(type = given)
Kimberly
DisplayForm
Kimberly Cook - Chennault
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
NORRIS
NamePart
(type = given)
ANDREW
DisplayForm
ANDREW NORRIS
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Ozel
NamePart
(type = given)
Tugrul
DisplayForm
Tugrul Ozel
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
outside member
Name
(type = corporate)
NamePart
Rutgers University
Role
RoleTerm
(authority = RULIB)
degree grantor
Name
(type = corporate)
NamePart
Graduate School - New Brunswick
Role
RoleTerm
(authority = RULIB)
school
TypeOfResource
Text
Genre
(authority = marcgt)
theses
OriginInfo
DateCreated
(qualifier = exact)
2012
DateOther
(qualifier = exact);
(type = degree)
2012-05
Place
PlaceTerm
(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
The structure of the de-fluidized hood, an area of un-fluidized material found in the wake downstream of submerged objects, is studied with special interest on the internal fluidization structure and shape of the hood. Previously, the structure of the region was determined based on indirect photographic evidence rather than direct measurement. Also, the wake region had been considered to be entirely packed and focus had only been on the de-fluidized region in the near wake. In the present study, an experimental set-up was created which allowed for spheres and disks of various radii to be suspended within a fluidized bed of Geldart A particles. The force imparted by the wake region at various depths on a submerged object was measured providing insight into the downstream extent of the region, as well as the nature of the fluidization within the wake. Additionally, bed collapse with an object near the surface was studied to gain insight into particle mobility within the wake. Experiments were conducted to measure the maximum normal force supported by the wake region, as well as the shear and drag, at various depths above the submerged object surface providing an indirect measure of the velocity within the wake and its effect on neighboring structures. The results show the region to have several fluidization states: a dead region, a stagnant percolating region, a large percolating region of mobile particles, and an expanding region. The overall shape is found to resemble cylinder with a rounded top. Voids generated at the hemisphere of the submerged objects and particle circulation into and out of the region were found to play a key role in determining the shape and height of the hood, as well as playing a key role in the re-fluidization of the region. Using the data collected from the experiments, a model of the weight force imparted by the de-fluidized region on a submerged object was developed.
Subject
(authority = RUETD)
Topic
Mechanical and Aerospace Engineering
RelatedItem
(type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
(type = RULIB)
ETD
Identifier
ETD_3831
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
ix, 138 p. : ill.
Note
(type = degree)
Ph.D.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Prakash R. Rao
Subject
(authority = ETD-LCSH)
Topic
Fluidization
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000065251
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Location
PhysicalLocation
(authority = marcorg);
(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3N878Q4
Genre
(authority = ExL-Esploro)
ETD doctoral
Back to the top
Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Rao
GivenName
Prakash
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = start)
2012-02-01 11:55:04
AssociatedEntity
Name
Prakash Rao
Role
Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
Back to the top
Technical
FileSize
(UNIT = bytes)
5257728
OperatingSystem
(VERSION = 5.1)
windows xp
ContentModel
ETD
MimeType
(TYPE = file)
application/pdf
MimeType
(TYPE = container)
application/x-tar
FileSize
(UNIT = bytes)
5263360
Checksum
(METHOD = SHA1)
f3fb110b57b25ccc87a42b762b9b4efdd3318b88
Back to the top
Statistical Profile