Anisotropic turbulent heat transfer in channels of nuclear power reactors

Journal Article · Thu May 01 00:00:00 EDT 1986 · Sov. At. Energy (Engl. Transl.); (United States)

OSTI ID:5171086

Bobkov, V P

The characteristics of heat transfer in channels with a complicated profile are outlined. In order to take these features into account, the authors examine the laws of turbulent transport along the normal to the wall and in the azimuthal direction; in longitudinal runs the laws of transfer along the average motion must also be known. The author writes the system of energy equations in a somewhat simplified form for the region of the fuel element and for the region of fluid flow. The condition for interaction between the regions consists of the equality of the temperatures and heat fluxes at the interaction boundary. A new computational-experimental approach to the determination of the coefficient of turbulent heat transfer, which can be used for flow in channels with a complicated profile and which reveals the anisotropic nature of the transfer, is improved upon. All work performed thus far to improve this approach, substantiate it, and the results obtained by using it, are summarized.

• OSTI ID: 5171086
• Journal Information: Sov. At. Energy (Engl. Transl.); (United States), Vol. 59:5
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
COOLANTS
FLOW MODELS
HEAT TRANSFER
HYDRAULICS
FUEL CHANNELS
AIR
ANISOTROPY
FUEL ASSEMBLIES
GLYCOLS
HEAT FLUX
LIQUID METALS
PRIMARY COOLANT CIRCUITS
REYNOLDS NUMBER
ROD BUNDLES
TEMPERATURE DISTRIBUTION
TURBULENT FLOW
WATER
ALCOHOLS
COOLING SYSTEMS
ELEMENTS
ENERGY SYSTEMS
ENERGY TRANSFER
FLUID FLOW
FLUID MECHANICS
FLUIDS
GASES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
LIQUIDS
MATHEMATICAL MODELS
MECHANICS
METALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
REACTOR CHANNELS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
220100* - Nuclear Reactor Technology- Theory & Calculation