Numerical study of turbulent heat transfer in a spherical annulus

Journal Article · Tue Nov 01 04:00:00 EST 1988 · J. Heat Transfer; (United States)

DOI:https://doi.org/10.1115/1.3250587· OSTI ID:6593951

Stein, W; Brandt, H

A numerical study of steady, buoyant, incompressible water flow and heat transfer through a spherical annulus has been made. A two-dimensional computer code based on the TEACH code was rewritten in spherical coordinates to model the Navier--Stokes equation and to model fluid turbulence with a k--epsilon turbulence model. Results are given for the total system Nusselt number, local heat transfer rate, and fluid flow characteristics for both buoyant and nonbuoyant laminar and turbulence modeled flow. Incorporating both the turbulence model and buoyancy into the calculations improves the results.

• Research Organization: Lawrence Livermore National Laboratory, Livermore, CA 94550
• OSTI ID: 6593951
• Journal Information: J. Heat Transfer; (United States), Journal Name: J. Heat Transfer; (United States) Vol. 110:4; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
640410 -- Fluid Physics-- General Fluid Dynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNULAR SPACE
BOUNDARY LAYERS
COMPUTER CODES
CONFIGURATION
DIFFERENTIAL EQUATIONS
ENERGY TRANSFER
EQUATIONS
FLUID FLOW
HEAT TRANSFER
HYDROGEN COMPOUNDS
INCOMPRESSIBLE FLOW
LAMINAR FLOW
LAYERS
MOMENTUM TRANSFER
NAVIER-STOKES EQUATIONS
NUMERICAL SOLUTION
NUSSELT NUMBER
OXYGEN COMPOUNDS
PARTIAL DIFFERENTIAL EQUATIONS
REYNOLDS NUMBER
SPACE
SPHERICAL CONFIGURATION
STEADY FLOW
T CODES
TURBULENCE
WALL EFFECTS
WATER