It is now possible to perform a multidimensional thermal-hydraulic simulation of either a single component, such as a rod bundle, reactor plenum, piping system, heat exchanger, etc., or a multicomponent system that is a combination of these components. The new porous-media more » formulation represents the first unified approach to thermal-hydraulic analysis. The concept of directional surface permeability is new and greatly facilitates modeling of velocity and temperature fields in anisotropic media. The concepts of volume porosity, directional surface permeability, distributed resistance, and distributed heat source or sink is used in the new porous-media formulation to model a flow domain with stationary structures. A new porous-media formulation via local volume averaging has been derived and employed in the COMMIX code. The COMMIX-1A computer program is an updated and improved version of COMMIX-1 designed to analyze steady-state/transient, single-phase, three-dimensional fluid flow with heat transfer in reactor components and multicomponent systems. Publication Date: Sat Nov 01 00:00: Research Org.: Argonne National Lab., IL (USA) OSTI Identifier: 6852848 Report Number(s): ANL-80-8 DOE Contract Number: W-31-109-ENG-38 Resource Type: Technical Report Country of Publication: United States Language: English Subject: 14 SOLAR ENERGY 25 ENERGY STORAGE COMPUTER CODES C CODES THERMAL ENERGY STORAGE EQUIPMENT WATER SENSIBLE HEAT STORAGE BAFFLES BOUNDARY CONDITIONS COMPRESSIBLE FLOW COMPUTER CALCULATIONS CONTINUITY EQUATIONS DENSITY EXPERIMENTAL DATA FINITE DIFFERENCE METHOD FLUIDS GRAPHS PARTIAL DIFFERENTIAL EQUATIONS PRANDTL NUMBER SOLAR HEATING SPECIFIC HEAT STRATIFICATION TANKS TEMPERATURE DEPENDENCE TEMPERATURE GRADIENTS THEORETICAL DATA THERMAL CONDUCTIVITY THERMAL DIFFUSIVITY THERMODYNAMIC PROPERTIES THERMODYNAMICS THREE-DIMENSIONAL CALCULATIONS TRANSIENTS VISCOSITY CONTAINERS CONTROL EQUIPMENT DATA DIFFERENTIAL EQUATIONS ENERGY STORAGE EQUATIONS EQUIPMENT FLOW REGULATORS FLUID FLOW HEAT STORAGE HEATING HYDROGEN COMPOUNDS INFORMATION ITERATIVE METHODS NUMERICAL DATA NUMERICAL SOLUTION OXYGEN COMPOUNDS PHYSICAL PROPERTIES STORAGE 142000* - Solar Energy- Heat Storage- (1980-) 250600 - Energy Storage- = ,

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