Change search
ReferencesLink to record
Permanent link

Direct link
Nonlocal instability analysis based on multiple-scale method
2002 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Multiple-scales technique (MSC) is used to examine the instability of non- parallel, compressible, quasi three-dimensional boundary layer flows. It models the kinematics and convective amplification of waves with weakly divergent or curved wave-rays and wave-fronts, propagating in a weakly non-uniform flow. The stability equations are put in a system of ordinary differential equations in a general orthogonal curvilinear coordinate system. The zeroth- order equations are homogeneous and govern the disturbance motion in a parallel flow and the non-local effects are calculated from the inhomogeneous first-order equations. The equations rewritten as a system of first order differential equations are discretized using compact finite difference scheme. For validation of the multiple-scales technique, we have compared the growth rates with results from 'parabolized stability equations' (PSE).

Place, publisher, year, edition, pages
Keyword [en]
Technology, Instability, multiple-scale, boundary layer, transition
Keyword [sv]
URN: urn:nbn:se:ltu:diva-56181ISRN: LTU-EX--02/169--SELocal ID: cf844883-eba8-4b06-aba2-73a18aaae06bOAI: diva2:1029568
Subject / course
Student thesis, at least 30 credits
Educational program
Engineering Physics, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

No full text

Search outside of DiVA

GoogleGoogle Scholar

Total: 1 hits
ReferencesLink to record
Permanent link

Direct link