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Anatoli Tumin
Researcher at University of Arizona
Publications - 136
Citations - 2623
Anatoli Tumin is an academic researcher from University of Arizona. The author has contributed to research in topics: Boundary layer & Eigenfunction. The author has an hindex of 29, co-authored 134 publications receiving 2421 citations. Previous affiliations of Anatoli Tumin include American Institute of Aeronautics and Astronautics & Tel Aviv University.
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Spatial theory of optimal disturbances in boundary layers
Anatoli Tumin,Eli Reshotko +1 more
TL;DR: In this paper, a spatial theory for the linear transient growth of disturbances in a parallel boundary layer is proposed, where the spatial development of disturbances downstream of a source may be presented as a sum of decaying eigenmodes and Tollmien-Schlichting (TS) like instability modes.
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Role of Transient Growth in Roughness-Induced Transition
Eli Reshotko,Anatoli Tumin +1 more
TL;DR: In this paper, a model for roughness-induced boundary-layer transition is developed that makes use of computational results based on the spatial transient growth theory pioneered by the present authors.
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High-Speed Boundary-Layer Instability: Old Terminology and a New Framework
Alexander Fedorov,Anatoli Tumin +1 more
TL;DR: In this paper, the discrete spectrum of disturbances in high-speed boundary layers is discussed with emphasis on singularities caused by synchronization of the normal modes, and it is shown that this singular behavior is due to branching of the dispersion curves in the synchronization region.
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Three-dimensional spatial normal modes in compressible boundary layers
TL;DR: In this paper, the Cauchy problem is solved under the assumption of a flnite growth rate of the disturbances, and the solution can be presented as an expansion into a biorthogonal eigenfunction system, which can be used for decomposition of ∞ow flelds derived from computational studies when pressure, temperature and all the velocity components, together with some of their derivatives, are available.
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Multimode decomposition of spatially growing perturbations in a two-dimensional boundary layer
TL;DR: In this article, the Cauchy problem is solved under the assumption of a finite growth rate of the disturbances, and the solution can be presented as an expansion into a biorthogonal eigenfunction system.