Hydrodynamics, mixing, and segregation in gas fluidized beds: Technical progress report, 22 January 1987 to 21 April 1987

Technical Report · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6487183

Chen, M M; Chao, B T

This technical progress report covers the progress made in the project entitled ''Hydrodynamics, Mixing, and Segregation in Gas Fluidized Beds,'' under the Grant No. FG22-85PC80511 during the period 22 January through 21 April 1987. Efforts during this period have focused on the following areas. (1) A new method of processing the single particle tracking data have been developed. The method is based on area averages rather than volume averages and it is capable of providing complete information on the turbulent stresses. In contrast, previous methods were able to produce only selected components of the stresses. (2) Examinations of the power spectrum of the multiple particle tracking data have been carried out, in an effort to obtain a mechanistic understanding of the nature of solids motion in the bed. Of particular interest is the fact that the spectrum revealed the presence of persistent intrinsic frequencies which are independent of the particle size and the fluidization velocity. 4 figs., 1 tab.

• Research Organization: Illinois Univ., Urbana (USA). Dept. of Mechanical and Industrial Engineering
• DOE Contract Number: FG22-85PC80511
• OSTI ID: 6487183
• Report Number(s): DOE/PC/80511-T7; ON: DE87010009
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BUBBLES
CALCULATION METHODS
FLUCTUATIONS
FLUID MECHANICS
FLUIDIZATION
FLUIDIZED BEDS
MECHANICS
MIXING
PARTICLE SIZE
PARTICLES
PARTICULATES
SIZE
STRESSES
VARIATIONS