Analysis of transonic turbomachinery flows using a 2-D explicit low-Reynolds k-ε Navier-Stokes solver

Dejean, F; Vassilopoulos, C; Simandirakis, G; Giannakoglou, KC; Papaillou, KD

dc.contributor.author	Dejean, F	en
dc.contributor.author	Vassilopoulos, C	en
dc.contributor.author	Simandirakis, G	en
dc.contributor.author	Giannakoglou, KC	en
dc.contributor.author	Papaillou, KD	en
dc.date.accessioned	2014-03-01T02:48:15Z
dc.date.available	2014-03-01T02:48:15Z
dc.date.issued	1994	en
dc.identifier.issn	04021215	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33667
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0028127606&partnerID=40&md5=49a263f7a943c919b6a71e2dd14dde36	en
dc.subject.other	Cascades (fluid mechanics)	en
dc.subject.other	Compressors	en
dc.subject.other	Equations of motion	en
dc.subject.other	Mathematical models	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Stability	en
dc.subject.other	Steam turbines	en
dc.subject.other	Supersonic flow	en
dc.subject.other	Turbulence	en
dc.subject.other	Viscosity of gases	en
dc.subject.other	Flow field	en
dc.subject.other	Fractional step analysis	en
dc.subject.other	Grids	en
dc.subject.other	Navier-stokes equation	en
dc.subject.other	Transonic flow	en
dc.title	Analysis of transonic turbomachinery flows using a 2-D explicit low-Reynolds k-ε Navier-Stokes solver	en
heal.type	conferenceItem	en
heal.publicationDate	1994	en
heal.abstract	An explicit, time-marching fractional-step solver for the calculation of the two-dimensional compressible Navier-Stokes equations is presented. The advantage of using a fractional-step analysis is its simplicity and the fact that greater time-steps are allowed, since the stability criterion is less strict compared to other explicit solvers. Turbulence is modeled through a low-Reynolds k-ε model, for which a novel artificial viscosity scheme is implemented, ensuring a smooth ε-distribution close to solid walls. The method is used in order to numerically investigate the flow field in three different cascades, namely a highly loaded transonic linear turbine guide vane cascade in six different flow conditions, a transonic steam turbine cascade in two different flow conditions and a low supersonic compressor cascade. Calculations are performed using both H- and C-type grids.	en
heal.publisher	Publ by ASME, New York, NY, United States	en
heal.journalName	American Society of Mechanical Engineers (Paper)	en
dc.identifier.spage	1	en
dc.identifier.epage	12	en