3-D axisymmetric viscous internal flows on rotating and stationary surfaces in turbomachines

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dc.contributor.author Ktenidis, PD en
dc.contributor.author Kaldellis, JK en
dc.date.accessioned 2014-03-01T02:47:59Z
dc.date.available 2014-03-01T02:47:59Z
dc.date.issued 1991 en
dc.identifier.issn 04021215 en
dc.identifier.uri https://dspace.lib.ntua.gr/xmlui/handle/123456789/33491
dc.relation.uri http://www.scopus.com/inward/record.url?eid=2-s2.0-0025867496&partnerID=40&md5=a3fac2f8b179df8eb48f72109b684068 en
dc.subject.other Compressors - Axial Flow en
dc.subject.other Flow of Fluids - Viscous en
dc.subject.other Gas Turbines - Flow Problems en
dc.subject.other Axisymmetric Viscous Internal Flows en
dc.subject.other High Bypass Turbine Engines en
dc.subject.other Navier-Stokes Equations en
dc.subject.other Turbomachine Stationary Surfaces en
dc.subject.other Turbomachinery Rotating Surfaces en
dc.subject.other Turbomachinery en
dc.title 3-D axisymmetric viscous internal flows on rotating and stationary surfaces in turbomachines en
heal.type conferenceItem en
heal.publicationDate 1991 en
heal.abstract A fast calculation method, able to predict three dimensional axisymmetric viscous internal flows on rotating and stationary surfaces in turbomachinery components has been developed. Modern high bypass turbine engines are characterized by axisymmetric parts such as inlets, nacelles, the prediffuser whose primary function is the efficient transfer of flow from one component to another. The flow field in such ducts are characterized by streamline curvature and divergence resulting from sharp contour and rapid area rotations, with the appearance of high peripheral velocity components. The detailed calculation of the flow field through the axisymmetric parts requires a solution of the three-dimensional Navier - Stokes equations. However, conventional design systems simplify the flow pattern to a two dimensional one. The proposed method is based on the two-zone model and uses the notions of the integral formulation for the meridional direction. The meridional vorticity transport differential formulation, in a modified form is used for the peripheral direction to include the dynamics of passing from stationary to rotating parts and vice-versa. The resulting algorithms are sufficiently versatile and reliable to be used as a part of a design system for industrial applications. en
heal.publisher Publ by ASME, New York, NY, United States en
heal.journalName American Society of Mechanical Engineers (Paper) en

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