COMMIX-SA-1: a three-dimensional thermohydrodynamic computer program for solar applications. [Heat-storage water tanks]

Technical Report · Sat Nov 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/6852848· OSTI ID:6852848

Sha, W. T.; Lin, E. I.H.; Schmitt, R. C.; Liu, K. V.; Hull, J. R.; Oras, Jr., J. J.; Domanus, H. M.

COMMIX-SA-1 is a three-dimensional, transient, single-phase, compressible-flow, component computer program for thermohydrodynamic analysis. It was developed for solar applications in general, and for analysis of thermocline storage tanks in particular. The conservation equations (in cylindrical coordinates) for mass, momentum, and energy are solved as an initial-boundary-value problem. The detailed numerical-solution procedure based on a modified ICE (Implicit Continuous-Fluid Eulerian) technique is described. A method for treating the singularity problem arising at the origin of a cylindrical-coordinate system is presented. In addition, the thermal interactions between fluid and structures (tank walls, baffles, etc.) are explicitly accounted for. Finally, the COMMIX-SA-1 code structure is delineated, and an input description and sample problems are presented.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6852848
• Report Number(s): ANL-80-8
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
142000* -- Solar Energy-- Heat Storage-- (1980-)
25 ENERGY STORAGE
250600 -- Energy Storage-- Thermal
BAFFLES
BOUNDARY CONDITIONS
C CODES
COMPRESSIBLE FLOW
COMPUTER CALCULATIONS
COMPUTER CODES
CONTAINERS
CONTINUITY EQUATIONS
CONTROL EQUIPMENT
DATA
DENSITY
DIFFERENTIAL EQUATIONS
ENERGY STORAGE
EQUATIONS
EQUIPMENT
EXPERIMENTAL DATA
FINITE DIFFERENCE METHOD
FLOW REGULATORS
FLUID FLOW
FLUIDS
GRAPHS
HEAT STORAGE
HEATING
HYDROGEN COMPOUNDS
INFORMATION
ITERATIVE METHODS
NUMERICAL DATA
NUMERICAL SOLUTION
OXYGEN COMPOUNDS
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
PRANDTL NUMBER
SENSIBLE HEAT STORAGE
SOLAR HEATING
SPECIFIC HEAT
STORAGE
STRATIFICATION
TANKS
TEMPERATURE DEPENDENCE
TEMPERATURE GRADIENTS
THEORETICAL DATA
THERMAL CONDUCTIVITY
THERMAL DIFFUSIVITY
THERMAL ENERGY STORAGE EQUIPMENT
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
THREE-DIMENSIONAL CALCULATIONS
TRANSIENTS
VISCOSITY
WATER