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By James R. Melcher

ISBN-10: 026213165X

ISBN-13: 9780262131650

Designed for use as a graduate-level textual content and as an engineering reference paintings, Continuum Electromechanics provides a finished improvement of its subject—the interplay of electromagnetic forces and ponderable media, the mechanical responses to electromagnetic fields, and the reciprocal results of the cloth motions produced via these fields. The author’s strategy is very interdisciplinary, and he introduces primary strategies from such matters as electrohydrodynamics, magnetohydrodynamics, plasma physics, electron beam engineering, fluid mechanics, warmth move, and actual chemistry. The functions of continuum electromechanics also are remarkably varied, and lots of of them are handled within the e-book, either as a result of their intrinsic engineering significance and as a method of illustrating easy ideas. between those purposes are the layout of rotating machines and synchronous turbines, polymer processing, magnetic melting and pumping in metallurgical operations, the processing of plastics and glass, the manufacture of artificial fibers, inductive and dielectric heating, thermal-to-electrical power conversion, the keep watch over of pollution, the layout of controlled-fusion units, picture processing and printing, the magnetic levitation and propulsion of cars, the research of flicks and membranes, and the research of the advanced electrokinetic and physicochemical techniques that underlie the sensing and motor capabilities of organic structures. lots of those purposes are provided within the type of difficulties. The publication includes 11 chapters, entitled creation to Continuum Electromechanics; Electrodynamic legislation; Approximations, and kinfolk; Electromagnetic Forces, strength Densities, and pressure Tensors; Electromechanical Kinematics; Energy-Conversion versions and approaches; cost Migration, Convection, and leisure; Magnetic Diffusion and Induction Interactions; legislation, Approximations, and family members of Fluid Mechanics Statics and Dynamics of platforms Having a Static Equilibrium; Electromechanical Flows; Electromechanics with Thermal and Molecular Diffusion; and Streaming Interactions

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Extra resources for Continuum Electromechanics

Sample text

1 . John Wiley & Sona , Rew York, 1 968 . PP• BJ2-B36 , ( See Prob . 2 , 6 , 2 for the de r ivat ion of this theorem . ) 2,9 Secs . 2 . S & 2 . 6 . - ----------- -· -- --- ----- ·---------- ------- I b (a) (c ) (b) Arbitrary contours, volumes and surfaces : (a) open contour C ; (b ) c losed surface S , enclosing volume V; Cc) open surface S with boundary contour C, Fig . 2 . 6 . 1 . (4) Again , C is the contour which is the periphery of the open surface S. The velocity v5 is the velocity of the surface and the contour.

The velocity v5 is the velocity of the surface and the contour. Unless given a physical significance , its meaning ia purely geometrical + A l imiting form of the generalized Leibnitz n1le will be handy in dealing with closed surfaces . Let the c ontour C of Eq . 4 shrink to zero , so that the surface S becomes a closed one. Thia process can be readily visuali zed in terms of the surface and contour sketch in Fig. 2. 6 . q . 2), Eq . 4 becomes a statement of how to take the time derivative of a volume integral when the volume 1a a function of time : (5) ..

2 . 7) , splicing condit i ons (Sec. 2 . 10), and energy storages are derived from the fundamental quasi­ s tatic laws, illus t rates the important dictum that internal consistency be maintained wi thin the frame­ work of the quas istatic approximation. The result s of the sections on energy storage are used in Chap. 3 for deducing - the electric and magnetic force densities on macroscopic media. The transfer relat ions of the last sections a re ao important resource throughout all of the following chapters , and give the opportunity to explore the physical significance of the quasistatic limits.

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Continuum Electromechanics by James R. Melcher

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