Turbulence Generated Secondary Flows in Ducts of Non-Circular Cross-Section

Autor: W. J. Seale
Rok vydání: 1982
Předmět:
Zdroj: Journal of Mechanical Engineering Science. 24:119-127
ISSN: 2058-3389
0022-2542
DOI: 10.1243/jmes_jour_1982_024_025_02
Popis: The use of algebraic stress models in the prediction of secondary flows in straight ducts of non-circular cross-section is found to be unsatisfactory and to give inconsistent results in the sub-channels within a rod bundle. An algebraic expression is presented which allows the source of axial vorticity to be calculated directly and without iteration. The expression is shown to reproduce secondary velocities in square and triangular ducts, and in a duct consisting of two inter-connected subchannels.
Databáze: OpenAIRE