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Tuesday, July 28, 2020 | History

6 edition of Stability of time dependent and spatially varying flows found in the catalog.

Stability of time dependent and spatially varying flows

proceedings of the Symposium on the Stability of Time Dependent and Spatially Varying Flows, held August 19-23, at NASA Langley Research Center, Hampton, Virginia

by Symposium on the Stability of Time Dependent and Spatially Varying Flows (1985 NASA Langley Research Center)

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Published by Springer-Verlag in New York .
Written in English

    Subjects:
  • Fluid dynamics -- Congresses.,
  • Aerodynamics -- Congresses.

  • Edition Notes

    Statementedited by D.L. Dwoyer and M.Y. Hussaini.
    ContributionsDwoyer, Douglas L., Hussaini, M. Yousuff., Institute for Computer Applications in Science and Engineering., Langley Research Center.
    Classifications
    LC ClassificationsTA357 .S936 1985
    The Physical Object
    Paginationxiii, 350 p. :
    Number of Pages350
    ID Numbers
    Open LibraryOL2733631M
    ISBN 10038796472X
    LC Control Number86027893

      This article contains a review of modal stability theory. It covers local stability analysis of parallel flows including temporal stability, spatial stability, phase velocity, group velocity, spatio-temporal stability, the linearized Navier–Stokes equations, the Orr–Sommerfeld equation, the Rayleigh equation, the Briggs–Bers criterion, Poiseuille flow, free shear flows, Cited by: Stability of Time-Dependent and Spatially Varying Flows, with D. L. Dwoyer, Springer-Verlag, Finite Elements Theory and Application, with D. L. Dwoyer and R. G. Voigt, Springer-Verlag, Numerical Analysis of Spectral Methods (Translation of the French work by B. Mercier), with Nessan McGiolla Mhuris, Lecture Notes in Physics.

    The platoon systems can be discrete or continuous time systems. The stability analysis of spatially invariant systems has been studied in control theory for a long time (Curtain, Iftime, Zwart, , Curtain, Zwart, , Freedman, Falb, Zames, ).Cited by: We discuss algorithmic matters of a computer code for solving linear two-point boundary-value problems. The method of solution uses superposition coupled with an orthonormalization procedure and a Cited by:

    Stability of Time Dependent and Spatially Varying Flows: Proceedings of the Symp Stability of Time. of Dependent Time Stability the Symp and of Flows: Varying Spatially Proceedings Proceedings Spatially Varying of and of Symp Dependent Flows: Stability Time the. $ Asymptotic linear stability of time-dependent flows is examined by extending to nonautonomous systems methods of nonnormal analysis that were recently developed for studying the stability of autonomous systems. In the case of either an autonomous or a nonautonomous operator, singular value decomposition (SVD) analysis.


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Stability of time dependent and spatially varying flows by Symposium on the Stability of Time Dependent and Spatially Varying Flows (1985 NASA Langley Research Center) Download PDF EPUB FB2

This volume is the collection of papers presented at the workshop on 'The Stability of Spatially Varying and Time Dependent Flows" sponsored by the Institute for Computer Applications in Science and Engineering (lCASE) and NASA Langley Research Center (LaRC) during August.

Stability of time Dependent and Spatially Varying Flows Home ; If you own the copyright to this book and it is wrongfully on our website, we offer a simple DMCA procedure to remove your content from our site.

Report "Stability of time Dependent and Spatially Varying Flows" Your name. Email. Not Available adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: Cowley S.J.

() High Frequency Rayleigh Instability of Stokes Layers. In: Dwoyer D.L., Hussaini M.Y. (eds) Stability of Time Dependent and Spatially Varying Flows Cited by: Get this from a library. Stability of Time Dependent and Spatially Varying Flows: Proceedings of the Symposium on the Stability of Time Dependent and Spatially Varying Flows Held August, at NASA Langley Research Center, Hampton, Virginia.

[D L. Stability of time dependent and spatially varying flows; Proceedings of the Symposium, Hampton, VA, Aug.By Douglas L. Dwoyer and M.

Yousuff Hussaini. Abstract. Papers are presented on the application of stability theory to laminar flow control, secondary instabilities in boundary layers, a Floquet analysis of secondary Author: Douglas L.

Dwoyer and M. Yousuff Hussaini. Papers are presented on the application of stability theory to laminar flow control, secondary instabilities in boundary layers, a Floquet analysis of secondary instability in shear flows, and the generation of Tollmien-Schlichting waves by long wavelength free stream disturbances.

This paper proposes a new complex dynamical network model, in which the state, input, and output variables are varied with the time and space variables. By utilizing the Lyapunov functional method combined with the inequality techniques, several criteria for passivity and global exponential stability are established.

Finally, numerical simulations are given to illustrate the Cited by: 5. Stability of Time Dependent and Spatially Varying Flows pp | Cite as The Generation of Tollmien—Schlichting Waves by Long Wavelength Free Stream Disturbances AuthorsCited by: 3.

Book Chapters. Monographs. Books Edited: BOOK CHAPTERS. Compressed Remote Sensing, with J. Ma and A. Khwaja, Chapter in Signal and Image Processing for Remote Sensing, edited by C.H.

Chen, CRC Press, Immersed Boundary Methods for Two-Fluid Flows, with Tryggvason and M. Sussman, Chapter in Computational Methods for Multiphase Flow.

A non-local stability theory is presented which includes the effects of streamline, surface and wave trajectory curvature on instability waves in three-dimensional, compressible flow. Only Local and Non-Local Stability Theory of Spatially Varying Flows | SpringerLinkCited by:   Primary instability of the three-dimensional boundary layer on a rotating disk introduces periodic modulation of the mean flow in the form of stationary crossflow vortices.

Here we study the stability of this modulated mean flow with respect to secondary by: Consider a nominal system σ0 with a time-varying delay given by (1) where x (t)∈ Rn is the state vector.

The time delay, d (t), is a time-varying continuous function that satisfies (2) where τ and μ are constants and the initial condition, φ (t), is a continuous vector-valued initial function of t.

Averaged and time-resolved heat transfer of steady and pulsating entry flow in intake manifold of a spark-ignition engine. International Journal of Heat and Fluid Flow, Vol. 19, Issue. 1, p. International Journal of Heat and Fluid Flow, Vol. 19, Issue.

1, by: Stability of time dependent and spatially varying flows: proceedings of the Symposium on the Stability of Time Dependent and Spatially Varying Flows, held Augustat NASA Langley Research Center, Hampton, Virginia. () Stability of air flow past thin liquid films on airfoils.

Stability of Time Dependent and Spatially Varying Flows, Unsteady Triple-deck Flows Leading to Instabilities. Boundary-Layer Separation, SIAM Journal on Applied MathematicsCited by:   Download PDF Abstract: We present a simple and efficient variational finite difference method for simulating time-dependent Stokes flow in the presence of irregular free surfaces and moving solid boundaries.

The method uses an embedded boundary approach on staggered Cartesian grids, avoiding the need for expensive remeshing operations, and can be applied to flows Author: Christopher Batty, Robert Bridson. Fundamental and subharmonic secondary instabilities of Görtler vortices - Volume - Fei Li, Mujeeb R.

Malik Skip to main content Accessibility help We use cookies to distinguish you from other users and to provide you with a better experience on our by: Numerical Simulation of Spatially Growing Three-Dimensional Disturbance Waves in Compressible Boundary Layers Review of Linear Compressible Stability Theory, in “Instability of Time Dependent and Spatially Varying Flows” (D.

Dwoyer and M.Y. Hussaini, eds.), Springer, New York, pp. –, Boundary Layer Linear Stability Cited by: Spatially varied flow in open channels occurs in a large variety of hydraulic structures as well as road/bridge surface drainage channels.

The equation of motion for spatially variable flow in an open channel, being produced by the lateral or a vertical inflow, has been treated previously. With the minimal resolution × 32 × 20 grid points covering a range of streamwise Reynolds numbers Re x 1 ε [ × 10 5, × 10 6], transition is obtained for 80 hours of time-processing on a CRAY 2 (whereas DNS of the whole transition takes about ten times longer).

Statistics of the LES are found to be in acceptable agreement with Cited by: Instability of unsteady flows or configurations Part 1. Instability of a horizontal liquid layer on an oscillating plane.

A layer of viscous liquid with a free surface is set in motion by the lower boundary moving simple-harmonically in its own plane. The stability of Cited by: A general formulation based on the linear initial-value problem, thus circumventing the normal-mode approach, yields an efficient framework for stability calculations that is easily extendable to incorporate time-dependent flows, spatially varying configurations, stochastic influences, nonlinear effects, and flows in complex geometries.