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The pressure field around a two-dimensional gas bubble in a fluidized bed

✍ Scribed by Howard Littman; George A.J. Homolka

Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
1021 KB
Volume
28
Category
Article
ISSN
0009-2509

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✦ Synopsis

Measurements of the entire pressure field around a two-dimensional bubble rising in an incipiently fluidized bed are reported. Above the center of pressure line, the field is Laplacian and reasonably well described by Davidson's theory. The pressure wake is closed. It extends for 12 bubble radii below the stagnation point and four radii on either side of the vertical axis of symmetry.

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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. (8-1