A pressure-based algorithm for high-speed turbomachinery flows

Politis, ES; Giannakoglou, KC

dc.contributor.author	Politis, ES	en
dc.contributor.author	Giannakoglou, KC	en
dc.date.accessioned	2014-03-01T01:12:34Z
dc.date.available	2014-03-01T01:12:34Z
dc.date.issued	1997	en
dc.identifier.issn	0271-2091	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12141
dc.subject	Approximate factorization	en
dc.subject	Compressible flows	en
dc.subject	Density biasing	en
dc.subject	Pressure correction	en
dc.subject	Turbulent flows	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	Algorithms	en
dc.subject.other	Compressible flow	en
dc.subject.other	Mathematical models	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Turbulence	en
dc.subject.other	Approximate factorization	en
dc.subject.other	Density biasing	en
dc.subject.other	Pressure correction equation	en
dc.subject.other	Turbomachinery flows	en
dc.subject.other	Transonic flow	en
dc.subject.other	algorithms	en
dc.subject.other	Navier-Stokes equations	en
dc.subject.other	turbomachinery	en
dc.title	A pressure-based algorithm for high-speed turbomachinery flows	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/(SICI)1097-0363(19970715)25:1<63::AID-FLD539>3.0.CO;2-A	en
heal.identifier.secondary	http://dx.doi.org/10.1002/(SICI)1097-0363(19970715)25:1<63::AID-FLD539>3.0.CO;2-A	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	The steady state Navier-Stokes equations are solved in transonic flows using an elliptic formulation. A segregated solution algorithm is established in which the pressure correction equation is utilized to enforce the divergence-free mass flux constraint. The momentum equations are solved in terms of the primitive variables, while the pressure correction field is used to update both the convecting mass flux components and the pressure itself. The velocity components are deduced from the corrected mass fluxes on the basis of an upwind-biased density, which is a mechanism capable of overcoming the ellipticity of the system of equations, in the transonic flow regime. An incomplete LU decomposition is used for the solution of the transport-type equations and a globally minimized residual method resolves the pressure correction equation. Turbulence is resolved through the k-epsilon model. Dealing with turbomachinery applications, results are presented in two-dimensional compressor and turbine cascades under design and off-design conditions. (C) 1997 by John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	International Journal for Numerical Methods in Fluids	en
dc.identifier.doi	10.1002/(SICI)1097-0363(19970715)25:1<63::AID-FLD539>3.0.CO;2-A	en
dc.identifier.isi	ISI:A1997XH17100004	en
dc.identifier.volume	25	en
dc.identifier.issue	1	en
dc.identifier.spage	63	en
dc.identifier.epage	80	en