FUGUE. A NONDIMENSIONAL METHOD FOR DIGITAL COMPUTER CALCULATION OF STEADY STATE TEMPERATURE, PRESSURE, AND VOID FRACTION IN PIPE FLOW WITH OR WITHOUT BOILING

Technical Report · Tue May 30 00:00:00 EDT 1961

DOI:https://doi.org/10.2172/4002632· OSTI ID:4002632

Noyes, R C; Bergonzoli, F; Gingrich, J E

A method is described for computing steady-state walland bulk-fluid temperature, void fraction, and local pressure in liquid-cooled closed channels in which the heating rate is specified. The method was programmed for the IBM 709 and the code, named "FUGUE," is described. In most instances, generally accepted physical relations developed by other investigators are used. The relations are expressed in general, nondimensional form and combined in an internally consistent manner to allow predictions for a variety of coolants and specified operating conditions. Variations in heat-transfer and hydraulic characteristics of the coolant caused by changes in its temperature, pressure, and state are handled by using continuously calculated local values of thermal conductivity, viscosity, density, and quality. Changes are made in the working equations to reflect the sequence of coolant changes from all liquid flow to liquid flow with subcooled boiling to two-phase flow, and finally to all-vapor flow. Computation is done by an iterative procedure using linearized forms of the working equaof the coolant caused by changes in its temperature, pressure, and stats are handled by using continuously calculated local values of thermal conductivity, viscosity, density, and quality. Changes are made in the working equations to reflect the sequence of coolant changes from all liquid flow to liquid fiow with subcooled boiling to two-phase flow, and finally to all-vapor flow. Computation is done by an iterative procedure using linearized forms of the working equations over short axial segments of the channel to calculate local conditions using assumed parameters. The parameters are then adjusted according to the calculated local conditions and the process is repeated until the correct solution is obtained. Working equations are presented in general form to allow their modification by using modified input dath. (auth)

• Research Organization: Atomics International. Div. of North American Aviation, Inc., Canoga Park, Calif.
• DOE Contract Number: AT-11-1-GEN-8
• NSA Number: NSA-15-019511
• OSTI ID: 4002632
• Report Number(s): NAA-SR-5958
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-61
• Country of Publication: United States
• Language: English

Related Subjects

ENGINEERING AND EQUIPMENT
BOILING
CAUSALITY
COMPUTERS
CONFIGURATION
COOLANTS
COOLING
DENSITY
DIGITAL SYSTEMS
ELEMENTARY PARTICLES
EQUATIONS
EVAPORATION
FIELD THEORY
FLUID FLOW
FLUIDS
GREEN FUNCTION
HEAT TRANSFER
HYDRAULICS
IBM 709
INTERACTIONS
LIQUID FLOW
LIQUIDS
MATHEMATICS
PRESSURE
PROGRAMMING
QUANTUM MECHANICS
RELATIVITY THEORY
STANDARDS
SUBCOOLING
SURFACES
TEMPERATURE
THERMAL CONDUCTIVITY
THERMODYNAMICS
TUBES
USES
VAPORS
VARIATIONS
VISCOSITY
VOID FRACTION