Multiphase hydrodynamic modeling and analysis of non-Newtonian coal/water slurry rheology
A multiphase non-Newtonian hydrodynamic model has been developed to predict the spatial and temporal distributions of pressure, relative motion between solids and liquid, solids concentration, and slurry shear rate and viscosity. This model includes separate continuity and momentum equations for each phase and extends the well accepted power-law, non-Newtonian constitutive relationship for shear stress calculations. The model has been partially validated by comparison with single-phase power-law non-Newtonian flow theory and the literature data. The present model has also been used to analyze the pure water, No. 2 diesel fuel and coal/water slurry data measured by using high pressure and high shear rate capillary tube systems. Excellent agreement has been obtained between the calculated and measured values on mixture shear rates and viscosity, mass flow rates, and pressure. 19 refs., 5 figs., 4 tabs.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6757377
- Report Number(s):
- CONF-881123-3; ON: DE89000584
- Resource Relation:
- Conference: 3. international symposium on liquid-solid flows (WAM), Chicago, IL, USA, 28 Nov 1988; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Some fundamental factors affecting the durability of coal/water slurry injectors in diesel engines
Two-phase non-Newtonian hydrodynamic modeling of slurries
Related Subjects
42 ENGINEERING
FUEL SLURRIES
HYDRODYNAMICS
EQUATIONS
FLOW MODELS
LIQUIDS
NUMERICAL SOLUTION
S CODES
SHEAR
SOLIDS
VELOCITY
VISCOSITY
COMPUTER CODES
DISPERSIONS
FLUID MECHANICS
FLUIDS
FUELS
MATHEMATICAL MODELS
MECHANICS
MIXTURES
SLURRIES
SUSPENSIONS
010600* - Coal
Lignite
& Peat- Properties & Composition
420400 - Engineering- Heat Transfer & Fluid Flow