Three-dimensional numerical simulation of settling and resuspension of solids in storage tanks with air injection recirculators

Conference · Sun Jan 01 00:00:00 EST 1984

OSTI ID:5028963

Eyler, L L

Transient three-dimensional finite-difference numerical modeling of flow with settling solids in a 3.7 x 10/sup 3/ m/sup 3/ tank was performed. The number-average diameter of the particles was 15..mu..m and nominal volumetric concentration was 24 percent. Using dilute suspension, concentration dependent viscosity, and settling velocity assumption, modeled air lift circulators were shown to be sufficient to maintain solids in suspension during normal operation. Resuspension of solids was also shown to be accomplished by impulsive circulator startup in the absence of particle agglomeration. Settling velocity was shown to be a dominant parameter under the assumptions made.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5028963
• Report Number(s): PNL-SA-11586; CONF-840301-1; ON: DE84008654
• Resource Relation: Conference: 9. international technical conference on slurry transportation, Lake Tahoe, NV, USA, 20 Mar 1984; Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
SLURRIES
COMPUTERIZED SIMULATION
PARTICLE RESUSPENSION
COMPUTER CODES
FINITE DIFFERENCE METHOD
TANKS
TRANSIENTS
TURBULENT FLOW
CONTAINERS
DISPERSIONS
FLUID FLOW
ITERATIVE METHODS
MIXTURES
NUMERICAL SOLUTION
SIMULATION
SUSPENSIONS
420400* - Engineering- Heat Transfer & Fluid Flow
420205 - Engineering- Transport & Storage Facilities- (1980-)