Method for the calculation of the tip clearance flow effects in axial flow compressors part II: Calculation procedure

Nikolos, IK; Douvikas, DI; Papailiou, KD

dc.contributor.author	Nikolos, IK	en
dc.contributor.author	Douvikas, DI	en
dc.contributor.author	Papailiou, KD	en
dc.date.accessioned	2014-03-01T02:48:11Z
dc.date.available	2014-03-01T02:48:11Z
dc.date.issued	1993	en
dc.identifier.issn	04021215	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33617
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027260255&partnerID=40&md5=3fc9e0b724cf567ddc2d15f09f7c8034	en
dc.subject.other	Algorithms	en
dc.subject.other	Axial flow turbomachinery	en
dc.subject.other	Cascades (fluid mechanics)	en
dc.subject.other	Axial flow compressors	en
dc.subject.other	Clearance flow phenomena	en
dc.subject.other	Compressor tip clearance	en
dc.subject.other	Diffusion model	en
dc.subject.other	Tip region	en
dc.subject.other	Compressors	en
dc.title	Method for the calculation of the tip clearance flow effects in axial flow compressors part II: Calculation procedure	en
heal.type	conferenceItem	en
heal.publicationDate	1993	en
heal.abstract	An algorithm was set up for the implementation of the tip clearance models, described in a previous paper, in a secondary flow calculation method. A complete theoretical procedure was, thus, developed, which calculates the circumferentially averaged flow quantities and their radial variation due to the tip clearance effects. The calculation takes place in successive planes, where a Poisson equation is solved in order to provide the kinematic field. The self induced velocity is used for the positioning of the leakage vortex and a diffusion model is adopted for the vorticity distribution. The calculated pressure deficit due to the vortex presence is used, through an iterative procedure, in order to modify the pressure difference in the tip region. The method of implementation and the corresponding algorithm are described in this paper of the paper and calculation results are compared to experimental ones for cascades and single rotors.	en
heal.publisher	Publ by ASME, New York, NY, United States	en
heal.journalName	American Society of Mechanical Engineers (Paper)	en