The rotary electrorheological effect
- Exxon Research and Engineering, Annandale, NJ (United States)
- Sandia National Labs., Albuquerque, NM (United States)
The viscous response of electrorheological fluids is usually manipulated through the use of DC or uniaxial AC electric fields. The result is that fibrillated structures parallel to the field form in a quiescent fluid; the distortion of such structures in a flow determines the enhanced viscous response, at least at low and moderate flow rates. We have conducted preliminary studies of electrorheological response in a different field configurations rotating electric field. With respect to the uniaxial AC case. there are two new developments in this type of field. The structures formed are disk-like, in the plane of the rotating field. Furthermore, the structures rotate either with or against the field, depending on the dielectric or conductivity contrast with the surrounding fluid.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 172473
- Report Number(s):
- SAND--95-2853C; CONF-9507205--1; ON: DE96003703
- Country of Publication:
- United States
- Language:
- English
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