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Characterization of shock wave turbulent boundary layer interaction using particle image velocimetry
Descriptive
TitleInfo
Title
Characterization of shock wave turbulent boundary layer interaction using particle image velocimetry
Name
(type = personal)
NamePart
(type = family)
Ojala
NamePart
(type = given)
Douglas E.
NamePart
(type = date)
1987-
DisplayForm
Douglas Ojala
Role
RoleTerm
(authority = RULIB)
author
Name
(type = personal)
NamePart
(type = family)
Rossmann
NamePart
(type = given)
Tobias
DisplayForm
Tobias Rossmann
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
chair
Name
(type = personal)
NamePart
(type = family)
Knight
NamePart
(type = given)
Doyle
DisplayForm
Doyle Knight
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal member
Name
(type = personal)
NamePart
(type = family)
Shan
NamePart
(type = given)
Jerry
DisplayForm
Jerry Shan
Affiliation
Advisory Committee
Role
RoleTerm
(authority = RULIB)
internal 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)
2012-01
Place
PlaceTerm
(type = code)
xx
Language
LanguageTerm
(authority = ISO639-2b);
(type = code)
eng
Abstract
(type = abstract)
A method for the use of Particle Image Velocimetry in the Rutgers Supersonic Wind Tunnel is established and described. The use of ice crystals as PIV seed material is tested using an oblique shock as a step response to estimate the particle lag time and particle diameter. These values were found to be 2.8 µs and 0.43 µm respectively. The Stokes number was found to be St = 0.11. The statistical properties of the undisturbed boundary layer are determined using PIV data and simplifying assumptions. The boundary layer thickness is δ = 15.6mm and the free stream velocity is U1 = 621m/s. This velocity corresponds to an approximate Mach number of 3.22. Using the Clauser method, the shear velocity is u = 22.45m/s. The log-law region has a last reliable point at height y+ ≈ 500 and extends to y+ ≈ 3000. Velocity fluctuation values and trends are in agreement with published results. Investigation of streamwise XY planes of the boundary layer suggest the existence of coherent structures, particularly hairpin vortices. Galilean decomposition clearly shows vortex structures at height y/δ≈0.2 at a convection velocity of Uc/U∞ = 0.75. Investigating a spanwise XZ plane at height y/δ=0.1 shows coherent regions of high and low velocity which stretch beyond the field of view. Shock Wave Turbulent Boundary Layer Interaction is investigated in the case of a 6 and 9 degree angle of attack flat plate used to generate an oblique shock which impinges upon the turbulent boundary layer. In the 9 degree case, an average separated region of the boundary layer exists to be 2.11δ long in the streamwise direction and exhibits the characteristics of a strong interaction. Ahead of the separated region, a separation shock shows streamwise motion of about ±0.25δ. The 6 degree case shows no boundary layer separation in the mean flow. A reflected shock exhibits reasonably steady behavior which is characteristic of a weak interaction. The sonic line shows that the subsonic layer dilates to a height of y/δ=0.27 and y/δ=0.7 for the 6 and 9 degree case respectively. In both interactions, the recovery of the boundary layer extends beyond the field of view in the streamwise direction.
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_3776
PhysicalDescription
Form
(authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
xv, 127 p. : ill.
Note
(type = degree)
M.S.
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Douglas E. Ojala
Subject
(authority = ETD-LCSH)
Topic
Shock waves
Subject
(authority = ETD-LCSH)
Topic
Shock waves--Computer programs
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000064156
RelatedItem
(type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
(type = local)
rucore19991600001
Location
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(authority = marcorg);
(displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier
(type = doi)
doi:10.7282/T3XS5TDM
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
RightsDeclaration
(ID = rulibRdec0006)
The author owns the copyright to this work.
RightsHolder
(type = personal)
Name
FamilyName
Ojala
GivenName
Douglas
Role
Copyright Holder
RightsEvent
Type
Permission or license
DateTime
(encoding = w3cdtf);
(qualifier = exact);
(point = start)
2012-01-04 13:08:53
AssociatedEntity
Name
Douglas Ojala
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
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Technical
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117601280
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windows xp
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