Start of fluidization of a bulk granular material in laminar flow

Journal Article · Tue Apr 20 00:00:00 EST 1982 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:6413710

Rozhdestvenskii, O I; Bednyakov, G E; Zayats, E I; Kirillov, I N; Serebryakova, T V

This report examines the usage and transformation of an equation of the form Re/sub cr/=Ar(1400+5.22/Ar) which is used in design calculations for determination of the velocity of the start of fluidization of a granular material bearing initial voidage e/sub o/=0.4. Variations of the Reynold's number corresponding to the Critical Fluidization velocity at various voidages of the granular bed and different values of the Archimedes number in laminar flow are presented. Results indicate that the equation cannot be recommended for use even for rough estimates of the bulk materials in laminar flow.

• OSTI ID: 6413710
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 54:11; Other Information: Translated from Zh. Prikl. Khim.; 54: No. 11 (Nov 1981)
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
GRANULAR MATERIALS
FLUIDIZATION
LAMINAR FLOW
CRITICAL VELOCITY
EXPERIMENTAL DATA
REYNOLDS NUMBER
DATA
FLUID FLOW
INFORMATION
MATERIALS
NUMERICAL DATA
VELOCITY
640410* - Fluid Physics- General Fluid Dynamics