Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Control Of Turbulent And Magnetohydrodynamic Channel Flows
Download Control Of Turbulent And Magnetohydrodynamic Channel Flows full books in PDF, epub, and Kindle. Read online Control Of Turbulent And Magnetohydrodynamic Channel Flows ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Control of Turbulent and Magnetohydrodynamic Channel Flows by : Rafael Vazquez
Download or read book Control of Turbulent and Magnetohydrodynamic Channel Flows written by Rafael Vazquez and published by Springer Science & Business Media. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph presents new constructive design methods for boundary stabilization and boundary estimation for several classes of benchmark problems in flow control, with potential applications to turbulence control, weather forecasting, and plasma control. One of the main features of the book is a unique "backstepping" approach to parabolic partial differential equations, which yields not only the stabilization of the flow, but also the explicit solvability of the closed-loop system. The work is an excellent reference for a broad, interdisciplinary engineering and mathematics audience: control theorists, fluid mechanicists, mechanical engineers, aerospace engineers, chemical engineers, electrical engineers, applied mathematicians, as well as research and graduate students in these fields.
Book Synopsis Hydrodynamic and Magnetohydrodynamic Turbulent Flows by : A. Yoshizawa
Download or read book Hydrodynamic and Magnetohydrodynamic Turbulent Flows written by A. Yoshizawa and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: TUrbulence modeling encounters mixed evaluation concerning its impor tance. In engineering flow, the Reynolds number is often very high, and the direct numerical simulation (DNS) based on the resolution of all spatial scales in a flow is beyond the capability of a computer available at present and in the foreseeable near future. The spatial scale of energetic parts of a turbulent flow is much larger than the energy dissipative counterpart, and they have large influence on the transport processes of momentum, heat, matters, etc. The primary subject of turbulence modeling is the proper es timate of these transport processes on the basis of a bold approximation to the energy-dissipation one. In the engineering community, the turbulence modeling is highly evaluated as a mathematical tool indispensable for the analysis of real-world turbulent flow. In the physics community, attention is paid to the study of small-scale components of turbulent flow linked with the energy-dissipation process, and much less interest is shown in the foregoing transport processes in real-world flow. This research tendency is closely related to the general belief that universal properties of turbulence can be found in small-scale phenomena. Such a study has really contributed much to the construction of statistical theoretical approaches to turbulence. The estrangement between the physics community and the turbulence modeling is further enhanced by the fact that the latter is founded on a weak theoretical basis, compared with the study of small-scale turbulence.
Book Synopsis Magnetohydrodynamic Channel Flow in Control Systems by : Hans Richard Fritschi
Download or read book Magnetohydrodynamic Channel Flow in Control Systems written by Hans Richard Fritschi and published by . This book was released on 1958 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Analytical Study of Turbulent Magnetohydrodynamic Channel Flow by : Albert Peter Scaglione
Download or read book An Analytical Study of Turbulent Magnetohydrodynamic Channel Flow written by Albert Peter Scaglione and published by . This book was released on 1969 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Boundary Control Laws and Observer Design for Convective, Turbulent and Magnetohydrodynamic Flows by : Rafael Vazquez Valenzuela
Download or read book Boundary Control Laws and Observer Design for Convective, Turbulent and Magnetohydrodynamic Flows written by Rafael Vazquez Valenzuela and published by . This book was released on 2006 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dissertation introduces a constructive and rigorous approach to design boundary controllers and boundary estimators for flow control problems. We study several flow control applications, including thermal fluids with convective-type instabilities, Navier-Stokes channel flow, and magnetohydrodynamic channel flow, which are considered benchmark models to problems such as turbulence control, drag reduction, model-based turbulence estimation, cooling systems (computer systems, fusion reactors), hypersonic flight and propulsion. For all systems considered, we solve both the problem of (full state) boundary stabilization and boundary estimation, and the combination of the two, output feedback boundary stabilization. We also consider a tracking problem for the Navier-Stokes channel flow. While some of these problems have been solved in the past, previous solutions were mainly done for spatially discretized versions of the models; however, controllers designed for a discretized plant do not always converge (when the grid size goes to zero) to stabilizing controllers for the continuous plant. In addition, the computational complexity of discretization-based methods may become overwhelming if a very fine grid is necessary in the discretizations to accurately describe the system (for example, in the case of very large Reynolds numbers in the channel flow stabilization problem). In contrast, our method uses a continuum approach and does not require discretization. Our approach exploits the spatially invariant geometry of our model problems to apply the backstepping control/observer design method for 1-D infinite-dimensional linear parabolic systems. Backstepping produces explicitly computable control and output injection gains, which are found from the solutions of linear hyperbolic PDEs. For all considered problems we show stability of the closed-loop system (for stabilization problems) and observer estimate convergence (for estimation problems). Finally, we also provide an extension of the backstepping method that allows to solve boundary control problems for a class of nonlinear parabolic PDEs. While boundary control of linear parabolic PDEs is a well established subject, boundary control of nonlinear parabolic PDEs is still an open problem as far as general classes of systems are concerned. Applications of interest include not only fluids but also many others like flexible structures, atomic force microscopy, aeroelasticity, chemical systems and quantum systems.
Book Synopsis Turbulence and Transport of Passive Scalar in Magnetohydrodynamic Channel Flow by :
Download or read book Turbulence and Transport of Passive Scalar in Magnetohydrodynamic Channel Flow written by and published by . This book was released on 2018 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the performed doctoral research, extensive Direct Numerical Simulations (DNS) are conducted for the flows of an electrically conducting fluid in a channel with imposed magnetic field. The cases of wall-normal, spanwise and streamwise orientations of the magnetic field are considered. The strength of the magnetic field varies in such a way that the flow transitions from fully turbulent state to slightly below the laminarization threshold. The main goal of the investigation is to understand the flow transformation and the effect of the magnetic field on the characteristics of the transport of a passive scalar (e.g. temperature or admixture).
Book Synopsis Hydromagnetic Channel Flows by : Lawson P. Harris
Download or read book Hydromagnetic Channel Flows written by Lawson P. Harris and published by MIT Press (MA). This book was released on 1985-11-01 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of three kinds of flow of viscous, incompressible, electrically conducting fluids in high-aspect-ration rectangular channels subjected to transverse magnetic fields: turbulent flow in the presence of a d-c magnetic field, and both laminar and turbulent induction-driven flows.
Book Synopsis Nonlinear Instabilities and Transition to Turbulence in Magnetohydrodynamic Channel Flow by : J. Hagan
Download or read book Nonlinear Instabilities and Transition to Turbulence in Magnetohydrodynamic Channel Flow written by J. Hagan and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Critical Survey of Magnetofluid Dynamics by : Shih I. Pai
Download or read book A Critical Survey of Magnetofluid Dynamics written by Shih I. Pai and published by . This book was released on 1964 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report gives a critical survey of the flow of an electrically conducting liquid in a pipe or channel under the influence of a transverse electromagnetic field. First, the fundamental principles on which the analysis of the magnetohydrodynamic (MHD) channel flow is based are discussed. Then various MHD channel flows which contain the generalized Hartmann flow, laminar flow in pipes, unsteady flow and turbulent flow are analyzed in detail. A summary is given of present knowledge of MHD channel flow.
Book Synopsis Exact Solutions for Magnetohydrodynamic Channel Flows by : Arthur Sherman
Download or read book Exact Solutions for Magnetohydrodynamic Channel Flows written by Arthur Sherman and published by . This book was released on 1962 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: I PLIFI C NEL Flow probl ms for hich exact olu io c b fou r i cu Bo h dy s te n r i probl r co i r ccou t i k of flux ll v loci y i ribu io CO RY FLO RE LSO I CU BULK OF OLU IO S R V LI FOR RBI RARY M AG IC Reynol s nu bers al ough so c l flo it on-uniform m gne ic fi l ll G TIC R Y OL U B R RE DISCU u or - $ +* N
Book Synopsis Numerical Simulation and Active Boundary Control of Magnetohydrodynamic Channel Flow by : Lixiang Luo
Download or read book Numerical Simulation and Active Boundary Control of Magnetohydrodynamic Channel Flow written by Lixiang Luo and published by . This book was released on 2010 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: An electrically conductive fluid flowing inside a channel is prone to be affected by enormous magnetohydrodynamics (MHD) effects, which often lead to high pressure gradients and low heat transfer rates. These effects are especially undesirable in many cooling systems where the MHD effects are inevitable. The performance of the heat exchange systems can be affected by the manipulation of the flow stability using active boundary controls. In this research we seek out active boundary control schemes which can potentially improve the performance of the heat exchange systems.
Book Synopsis A Variational Principle for Magnetohydrodynamic Channel Flow by : Norman C. Wenger
Download or read book A Variational Principle for Magnetohydrodynamic Channel Flow written by Norman C. Wenger and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Variational principle for calculating velocity profile and electric potential distribution in magnetohydrodynamic channel flow.
Book Synopsis Turbulence Suppression in Magnetohydrodynamic Flows by : John George Olin
Download or read book Turbulence Suppression in Magnetohydrodynamic Flows written by John George Olin and published by . This book was released on 1966 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of the suppression of turbulent fluctuations in turbulent magnetohydrodynamic flows was investigated experimentally and theoretically. The experimental work consisted of the measurement of the change in velocity profiles in a quasi-fully developed channel flow due to an imposed, transverse, magnetic field of 26.5 kilogauss. The velocity profiles were measured in a plane perpendicular to the imposed magnetic field with a special, cooled Pitot tube. It was found that the magnetic field tended to 'laminarize' the velocity profiles and to reduce the Reynolds' stress. (Author).
Book Synopsis Magnetohydrodynamics by : Sergei S. Molokov
Download or read book Magnetohydrodynamics written by Sergei S. Molokov and published by Springer Science & Business Media. This book was released on 2007-08-26 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book revises the evolution of ideas in various branches of magnetohydrodynamics (astrophysics, earth and solar dynamos, pinch, MHD turbulence and liquid metals) and reviews current trends and challenges. Uniquely, it contains the review articles on the development of the subject by pioneers in the field as well as leading experts, not just in one, but in various branches of magnetohydrodynamics, such as liquid metals, astrophysics, dynamo and pinch.
Book Synopsis Optimal and Robust Control Transition and Turbulence in Plane Channel Flow by :
Download or read book Optimal and Robust Control Transition and Turbulence in Plane Channel Flow written by and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efficient feedback control algorithms based on optimal and robust control theories have been formulated and tested in direct numerical simulations of turbulent channel flow. The optimization technique used is based solely on the equations governing the fluid flow and variations of a mathematical statement of the control objective, with out the heuristic procedures normally used to determine effective flow control algorithms. The control algorithms tested are shown to be extremely effective, and a host of new ideas for the determination of simple, implementable, effective control rules for turbulent flows have been proposed and are currently still under investigation. The problem of transition control via optimal and robust techniques has also been studied to draw parallels between the linear and nonlinear theories on problems of significant interest in fluid mechanics. Results on this problem have also been quite good and clearly demonstrate how the control theories are related. With this insight, an important extension of the concepts of robust control theory to nonlinear problems has been made.
Book Synopsis Turbulent Flow by : Peter S. Bernard
Download or read book Turbulent Flow written by Peter S. Bernard and published by John Wiley & Sons. This book was released on 2002-08-19 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides unique coverage of the prediction and experimentation necessary for making predictions. * Covers computational fluid dynamics and its relationship to direct numerical simulation used throughout the industry. * Covers vortex methods developed to calculate and evaluate turbulent flows. * Includes chapters on the state-of-the-art applications of research such as control of turbulence.
Book Synopsis Turbulent Magnetohydrodynamic Flows in Prismatic and Cylindrical Pipes by : Herman Branover
Download or read book Turbulent Magnetohydrodynamic Flows in Prismatic and Cylindrical Pipes written by Herman Branover and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
