Title
An Auto-Adaptive Multidomain Spectral Technique for Linear Stability Analysis: Application to Viscous Compressible Flows
Abstract
An auto-adaptive multidomain pseudo-spectral technique is considered in order to solve the linear stability problem of viscous compressible flows. Both the locations of the interfaces and the parameters of the mappings in each subdomain are adapted by minimizing the H2ω-norm of the calculated solution. Such method provides automatically—this is the key point—the best polynomial interpolation of the basic state the stability of which is studied. It turns out that the whole procedure is needed to obtain reliable results. The method is first validated against results available in the literature (both viscous incompressible and inviscid compressible Rayleigh–Taylor configurations). The efficiency of the numerical method is illustrated with results on the linear stability of the compressible viscous diffusive Rayleigh–Taylor flow where no analytical or numerical results are available. New results showing the influence of stratification, viscosity, diffusity between species and thermal diffusivity are presented.
Year
DOI
Venue
2002
10.1023/A:1015196413614
J. Sci. Comput.
Keywords
Field
DocType
polynomial interpolation,numerical method,thermal diffusivity,linear stability,rayleigh taylor instability,compressible flow,stratification
Compressibility,Linear stability,Inviscid flow,Mathematical optimization,Polynomial interpolation,Mathematical analysis,Rayleigh–Taylor instability,Spectral method,Compressible flow,Numerical analysis,Mathematics
Journal
Volume
Issue
ISSN
17
1-4
1573-7691
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Eric Serre173.03
Serge Gauthier200.34