The rising velocity of an isolated bubble in a "two-dimensional" air-fluidised bed has been measured and found to be wel1 described by the relation, ub= 15'9Abf cm/sec, where Ab is the area of the bubble measured in cm\*. This predicts a smaller rising velocity than the corresponding @avies and Tayl
The shape of the bubbles in a two-dimensional gas fluidised bed
β Scribed by J.A. Goldsmith; P.N. Rowe
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 201 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
β¦ Synopsis
NOTATION a quantity, detìned in Eq. (3) B quantity, defined in Eq. (3) C, concentration of the tracer in the mobile tluid Cz concentration of the tracer in the stagnant zones D coefficient of axial dispersion E quantity, defined in Eqs. (8-11) f(x) arbitrary function F quantity, defined in Eqs. (8-11) G quantity, defined in Eqs. (8-11) h(t, P, cp) function, defined in Eq. (5) Il(x) modified Bessel function, first kind, first order Jo(x) Bessel function, first kind, order zero K mass transfer coefficient between the mobile fluid and the stagnant zones
π SIMILAR VOLUMES
Based on the observed pattern of coalescence of bubble pairs in vertical alignment in a two-dimensional bed, a theory is developed which describes how bubble size and frequency changes with height in a gas fluidised bed. It is confirmed by comparison with the reported data from 10 separate investiga
## Shorter Communications characteristic time of the fluid Greek symbols natural time of the fluid radial, angular and axial component of the % velocity, respectively second invariant of the rate of deformation tensor