Published December 1982 | Version v1
Journal article

Turbulent flow in rod bundles with geometrical disturbances

  • 1. Nuclear Research Institute 250 68 Rez

Description

The results of measurements of shear stress distribution around wetted surfaces and velocity fields of turbulent flow in rod bundles with geometrical disturbances are presented. Experiments were performed on an aerodynamic model composed of 19 rods in a hexagonal arrangement 6 m long with an outside diameter of 120 mm and a pitch-todiameter ratio of 1.17. The geometric disturbances were modeled by the displacement of the central rod from its regular position. An important influence of secondary flows on the velocity fields was revealed. From the experimental data, empirical formulas for shear stress distribution were derived

Additional details

Publishing Information

Journal Title
Nucl. Technol.
Journal Volume
59
Journal Issue
3
Series
Nucl. Technol.
Journal Page Range
509-525
ISSN
0029-5450

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
16002831
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
DIMENSIONS; DISTRIBUTION; DISTURBANCES; EXPERIMENTAL DATA; FLOW MODELS; FLOW STRESS; FUEL ASSEMBLIES; FUEL ELEMENT CLUSTERS; GEOMETRY; HEXAGONAL CONFIGURATION; HYDRAULICS; SHEAR; TURBULENT FLOW
Descriptors DEC
CONFIGURATION; DATA; FLUID FLOW; INFORMATION; MATHEMATICAL MODELS; MATHEMATICS; NUMERICAL DATA; STRESSES