One-Dimensional Dynamic Wake Response in an Isolated Rotor due to Inlet Total Pressure Distortion

Show simple item record

dc.contributor.advisor McGilliard, Michael L. en_US
dc.contributor.advisor Tanko, James M. en_US
dc.contributor.advisor Dietrich, Andrea M. en_US
dc.contributor.advisor Ng, Wing Fai en_US
dc.contributor.advisor Dancey, Clinton L. en_US
dc.contributor.advisor O'Brien, Walter F. en_US
dc.contributor.author Boller, Shaun M. en_US
dc.date.accessioned 2011-08-06T14:35:27Z
dc.date.available 2011-08-06T14:35:27Z
dc.date.issued 1998-10-20 en_US
dc.identifier.other etd-92798-3849 en_US
dc.identifier.uri http://hdl.handle.net/10919/9587
dc.description.abstract An experimental investigation of the wake of a low-speed axial-flow compressor rotor was conducted with and without the presence of steady inlet total pressure distortions. The steady three-dimensional rotor inlet flow was obtained by a five-hole pneumatic pressure probe, while the one-dimensional rotor exit data were obtained using a piggyback steady/unsteady total pressure probe in non-nulling mode. Both inlet and exit flow conditions were measured in the stationary frame of reference. Results indicate increases in wake thickness and magnitude of total pressure defect as blade loading increased into the distortion cycle. The wake suction side jet increased in width and magnitude as blade loading increased, which appears to be a response to flow blockage caused by the growing boundary layer on the blades. Based on one-dimensional exit total pressure conditions with respect to the distortion screen, the dynamic response of the intra-blade passage flow does not appear to be a function of blade loading, measurement span, or distortion intensity within the ranges tested. Unsteady one-dimensional rotor exit suction side jet width and magnitude varied a great deal within and outside of the distorted region, and were only moderately correlated to inlet flow conditions. Changes in the unsteady one-dimensional rotor wake width and magnitude were usually in phase with and strongly correlated to changes in the inlet flow conditions. en_US
dc.format.medium ETD en_US
dc.publisher Virginia Tech en_US
dc.relation.haspart etd1.PDF en_US
dc.relation.haspart etd2.pdf en_US
dc.relation.haspart etd3.pdf en_US
dc.relation.haspart etd4.pdf en_US
dc.relation.haspart etd5.pdf en_US
dc.rights The authors of the theses and dissertations are the copyright owners. Virginia Tech's Digital Library and Archives has their permission to store and provide access to these works. en_US
dc.source.uri http://scholar.lib.vt.edu/theses/available/etd-92798-3849 en_US
dc.subject Compressor en_US
dc.subject Rotor en_US
dc.subject Wake en_US
dc.subject Pressure en_US
dc.subject Distortion en_US
dc.subject Response en_US
dc.title One-Dimensional Dynamic Wake Response in an Isolated Rotor due to Inlet Total Pressure Distortion en_US
dc.type Thesis en_US
dc.contributor.department Mechanical Engineering en_US
dc.description.degree Master of Science en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Search VTechWorks

Advanced Search


My Account