Representation of water properties by mathematical splines. [PWR]
Journal Article
·
· Nucl. Sci. Eng.; (United States)
OSTI ID:7121687
Cubic and bicubic piecewise polynomial splines are used to represent the boundaries between phases and the shapes of the phase surfaces in p(u,v), T(u,v), and v(p,h) diagrams. Good accuracy in the region of interest for pressurized water reactor applications is achieved at reasonable cost. Furthermore, the continuity of the second derivatives of this method of interpolation results in smoother numerical behavior than does linear interpolation when implemented in computer programs solving differential equations.
- Research Organization:
- Bettis Atomic Power Lab., West Mifflin, PA
- OSTI ID:
- 7121687
- Journal Information:
- Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 62:2; ISSN NSENA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACCIDENTS
HYDROGEN COMPOUNDS
LOSS OF COOLANT
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTORS
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACCIDENTS
HYDROGEN COMPOUNDS
LOSS OF COOLANT
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PWR TYPE REACTORS
REACTOR ACCIDENTS
REACTORS
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS