Multicellular natural convection of a low Prandlt number fluid between horizontal concentric cylinders

Journal Article · Sat Jan 01 00:00:00 EST 1994 · Numerical Heat Transfer. Part A, Applications; (United States)

OSTI ID:5354900

Yoo, Joosik; Choi, Jun Young; Kim, Moonuhn ^[1]

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1. Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Mechanical Engineering

Two-dimensional natural convection of a fluid of low Prandtl number (Pr = 0.02) in an annulus between two concentric horizontal cylinders is numerically investigated in a wide range of gap widths. For low Grashof numbers, a steady unicellular convection is obtained. Above a transition Grashof number that depends on the gap width, a steady bicellular flow occurs. With further increase of the Grashof number, steady or time-periodic multicellular convection occurs, and finally, complex unsteady convective flow appears. A plot is presented that predicts the type of flow patterns for various combination of gap widths and Grashof numbers.

• OSTI ID: 5354900
• Journal Information: Numerical Heat Transfer. Part A, Applications; (United States), Vol. 25:1; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ANNULAR SPACE
NATURAL CONVECTION
FLUIDS
FLUID FLOW
THEORETICAL DATA
CONFIGURATION
CONVECTION
DATA
ENERGY TRANSFER
HEAT TRANSFER
INFORMATION
MASS TRANSFER
NUMERICAL DATA
SPACE
420400* - Engineering- Heat Transfer & Fluid Flow