Abstract
The paper deals with the Orr--Sommerfeld problem and the corresponding model problem
The functions q(x)= x and q(x)= x 2 in this model correspond to the Couette and the Poiseuille profiles, respectively. Small values of the parameter ɛ correspond to large Reynolds numbers. As ɛ tends to zero, the spectrum of the model problem is localized near certain critical curves in the complex plane, whose explicit form can be determined. Moreover, there are asymptotic formulas for the eigenvalue distribution along these curves as ɛ→0. The main result of the paper is the following: as the Reynolds number tends to infinity, the spectrum of the Orr--Sommerfeld problem for the Couette and the Poiseuille flows is localized to the critical curves, which are the same as in the model problem. Moreover, the main terms of the asymptotic formulas for the eigenvalue distribution are preserved.
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REFERENCES
R. G. Drazin and W. H. Reid, Hydrodynamic Stability, Cambridge Univ. Press, Cambridge, 1981.
L. A. Dikii, Hydrodynamics Stability and Atmosphere Dynamics [in Russian], Gidrometeoizdat, Leningrad, 1973.
S. G. Reddy, P. J. Schmidt, and D. S. Henningson, “Pseudospectra of the Orr-Sommerfeld operator,” SIAM J. Appl. Math., 53 (1993), no. 1, 15-47.
S. A. Orszag, “Accurate solution of the Orr-Sommerfeld equation,” J. Fluid Mech., 50 (1971), 689-703.
L. N. Trefethen, “Pseudospectra of linear operators,” in: ISIAM 95: Proceeding of the Third Int. Congress on Industrial and Appl. Math., Academic Verlag, Berlin, 1996, pp. 401-434.
M. I. Neiman-zade and A. A. Shkalikov, “On the calculation of the eigenvalues for the Orr-Sommerfeld problem,” Fund. Prikl. Mat., 8 (2002), no. 1, 301-305.
A. A. Shkalikov, “On the limit behavior of the spectrum for large values of the parameter in a model problem,” Mat. Zametki [Math. Notes], 62 (1997), no. 6, 950-953.
A. V. D'yachenko and A. A. Shkalikov, “On a model problem for the Orr-Sommerfeld equation with the linear profile,” Funktsional. Anal. i Prilozhen. [Functional Anal. Appl.], 36 (2002), no. 3, 71-75.
A. A. Shkalikov and S. N. Tumanov, “On the limit behavior of the spectrum of a model problem for the Orr-Sommerfeld equation with the Poiseuille profile” Izv. Ross. Akad. Nauk Ser. Mat. [Russian Acad. Sci. Izv. Math.], 66 (2002), no. 4, 177-204.
C. S. Morawetz, “The eigenvalues of some stability problems involving viscosity,” J. Rational Mech. Analysis, 1 (1952), 579-603.
A. A. Shkalikov, “The Stokes lines and “the spectral tie” in the Orr-Sommerfeld problem,” Uspekhi Mat. Nauk [Russian Math. Surveys], 53 (1998), no. 4, 140.
S. N. Tumanov, “Model problem for the Poiseuille profile. Critical spectrum curves,” in: International Conference “Differential Equations and Related Topics” Dedicated to the Centenary Anniversary of I. G. Petrovskii, Abstracts, Moscow Univ., Moscow, 2001, pp. 413-414.
M. V. Fedoryuk, Asymptotic Methods for Linear Ordinary Differential Equations [in Russian], Nauka, Moscow, 1983. English transl.: Asymptotic Analysis: Linear Ordinary Differential Equations, Springer-Verlag, Berlin, 1993.
A. A. Shkalikov, “Theorems of Tauberian type on the zero distribution of holomorphic functions,” Mat. Sb. [Math. USSR-Sb.], 125 (1984), no. 3, 317-347.
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Shkalikov, A.A., Tumanov, S.N. On the Spectrum Localization of the Orr--Sommerfeld Problem for Large Reynolds Numbers. Mathematical Notes 72, 519–526 (2002). https://doi.org/10.1023/A:1020588429647
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DOI: https://doi.org/10.1023/A:1020588429647