Abstract

In order to calculate energy losses caused bv secondarv flows in curved channels of any sectional change a mathematical model od stationary, inviscid (ideal) flow has been applied. The qualitative correspondence between the wall streamlines in a specially curved channel determined numerically (FORTAN programm) and the wall streamlines displayed experimentally in a wind chanell has led to the development of a calculation method for three-dimensional boundary layers. Fundamental results of the behavior of secondary flows due to different effects are given in the present paper.