Title :
Mechanisms for acousto-electrokinetic coupling
Author :
Peddell, J.B. ; Leach, P.D.
Author_Institution :
Defence Res. Agency, Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
A variety of mechanisms exist to facilitate the transfer of energy from kinetic to electromagnetic in an ocean environment. The coupling of acoustic and electromagnetic fields is studied in relation to magnetohydrodynamic (MHD) and acousto-electrokinetic effects. Magnetic and electric fields are generated through fluid particle motion. These electromagnetic fields propagating mechanically alongside hydro-acoustic fields, give rise to pseudo-radiation. Sonomagnetism, an MHD effect, describes the magnetic fields generated by particle motions in electrically conducting media. The Debye effect, an electrokinetic phenomenon, describes the generation of electric and magnetic fields due to fluid particle acceleration in electrolytic solutions. A combined formulation for the Debye and sonomagnetic fields is presented for an arbitrarily moving solution. The derivation is formed to be a basis for future theoretical development and application. The solution is discussed with relation to magnetic fields generated in the ocean regime
Keywords :
Debye-Huckel theory; acoustoelectric effects; electrokinetic effects; electrolysis; electromagnetic fields; geomagnetism; kinetic theory; magnetohydrodynamics; oceanography; terrestrial electricity; underwater sound; Debye effect; Debye fields; MHD effect; MHD effects; acoustic fields coupling; acousto-electrokinetic coupling; electric fields; electrically conducting media; electrokinetic phenomenon; electrolytic solutions; electromagnetic fields; energy transfer; fluid particle acceleration; fluid particle motion; hydroacoustic fields; magnetic fields; magnetohydrodynamic effects; ocean environment; pseudoradiation; sonomagnetic fields; sonomagnetism;
Conference_Titel :
Common Modelling Techniques for Electromagnetic Wave and Acoustic Wave Propagation, IEE Colloquium on
Conference_Location :
London
DOI :
10.1049/ic:19960358