Numerical study of natural convection in a vertical, annular, porous layer
Conference
·
OSTI ID:5246043
Results of a numerical study of steady, natural convection in a fluid-saturated, vertical, annular, porous layer are reported. The analysis is performed using a finite element computer program based on the Galerkin form of the finite element method. Heat transfer rates are predicted for Rayleigh numbers in the range 25 to 100 with layer aspect ratios ranging from 2 to 8 and ratios of layer height-to-inner radius of 2, 4, and 8. Representative plots of isotherms and streamlines are also presented. Effects of anisotropic permeability are evaluated in a preliminary manner. Application of the results to an insulated storage tank is illustrated.
- Research Organization:
- Sandia National Labs., Livermore, CA (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5246043
- Report Number(s):
- SAND-81-2095C; CONF-820604-6; ON: DE82008192
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
142000* -- Solar Energy-- Heat Storage-- (1980-)
25 ENERGY STORAGE
250600 -- Energy Storage-- Thermal
ASPECT RATIO
CONTAINERS
CONVECTION
ENERGY LOSSES
ENERGY TRANSFER
EQUIPMENT
FINITE ELEMENT METHOD
FLUIDS
HEAT LOSSES
HEAT TRANSFER
ISOTHERM
LOSSES
MATERIALS
NATURAL CONVECTION
NUMERICAL SOLUTION
PERMEABILITY
POROUS MATERIALS
TANKS
THERMAL ENERGY STORAGE EQUIPMENT
THERMAL INSULATION
142000* -- Solar Energy-- Heat Storage-- (1980-)
25 ENERGY STORAGE
250600 -- Energy Storage-- Thermal
ASPECT RATIO
CONTAINERS
CONVECTION
ENERGY LOSSES
ENERGY TRANSFER
EQUIPMENT
FINITE ELEMENT METHOD
FLUIDS
HEAT LOSSES
HEAT TRANSFER
ISOTHERM
LOSSES
MATERIALS
NATURAL CONVECTION
NUMERICAL SOLUTION
PERMEABILITY
POROUS MATERIALS
TANKS
THERMAL ENERGY STORAGE EQUIPMENT
THERMAL INSULATION