Affordable Access

Publisher Website

Fluid Dynamics and Science of Magnetic Liquids

Elsevier Science & Technology
DOI: 10.1016/s0065-2539(08)60306-6
  • Chemistry
  • Mathematics
  • Physics


Publisher Summary This chapter discusses the fluid dynamics and science of magnetic liquids. Fluid media composed of solid magnetic particles of subdomain size colloidally dispersed in a liquid carrier are the basis for the highly stable, strongly magnetizable liquids known as magnetic fluids or ferrofluids. The number density of particles in suspension is in the order of lO23/m3. It is the existence of these synthetic materials that makes the study of magnetic liquid fluid dynamics (ferrohydrodynamics) possible. There are two broad ways to make a magnetic fluid: size reduction of coarse material and chemical precipitation of small particles. Size reduction has been done by spark evaporation–condensation, electrolysis, and grinding. Chemical routes include decomposition of metal carbonyls and precipitation from salt solutions. The fluid dynamics of magnetic fluids differ from that of ordinary fluids in that stresses of magnetic origin appear and, unlike in magnetohydrodynamics, there need not be electrical currents. Magnetic fluid pushes the nonmagnetic fluid in the presence of tangential applied field. The fluid motion is normal to the interfacial boundary between the two fluids.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

Constructing explicit magnetic analogies for the d...

on The Journal of Chemical Physic... Nov 21, 2008

Fluid dynamics of gas jets impinging on surface of...

on Chemical Engineering Science Jan 01, 1966

Fluid dynamics of liquids on Titans surface

on Planetary and Space Science Jan 01, 1998

Dynamics of magnetic fluid foam

on Journal of Magnetism and Magne... Jan 01, 1990
More articles like this..