Measurements of substructural effects in suspensions using falling ball rheometry

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:5236974

Milliken, W J; Powell, R L ^[1]; Gottleib, M ^[2]; Graham, A L ^[3]; Mondy, L A ^[4]

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1. California Univ., Davis, CA (USA)
2. Ben Gurion Univ., Beer Sheeva (IL)
3. Los Alamos National Lab., NM (USA)
4. Sandia National Labs., Albuquerque, NM (USA)

Falling ball rheometry is used to measure the apparent viscosity of homogeneous suspensions of rods and spheres when the suspended particles are large enough so that only hydrodynamic forces are present. Falling balls which are much larger than the dimensions of the suspended particles measure the average viscosity of the suspension. The authors report upon the apparent viscosity measured using falling balls with diameters that are on the order of and smaller than the characteristics dimension of the suspended particles. They show that in suspensions of rods, a decrease in the apparent viscosity is found when the test balls have diameters less than a critical value.

• OSTI ID: 5236974
• Report Number(s): CONF-881143-
• Resource Relation: Conference: American Institute of Chemical Engineers annual meeting, Washington, DC (USA), 27 Nov - 2 Dec 1988; Other Information: Technical Paper 152D
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
42 ENGINEERING
SUSPENSIONS
HYDRODYNAMICS
CALCULATION METHODS
PARTICLE SIZE
RHEOLOGY
RODS
SPHERES
SUBSURFACE STRUCTURES
VISCOSIMETERS
VISCOSITY
DISPERSIONS
FLUID MECHANICS
MEASURING INSTRUMENTS
MECHANICS
SIZE
023000* - Petroleum- Properties & Composition
990200 - Mathematics & Computers
420400 - Engineering- Heat Transfer & Fluid Flow