Author(s)

I.N. Carte

Abstract

Boundary element method in the analysis of the hydrodynamic assymetry at the flow round reversible axial cascades I.N. Carte Hydraulic Machines Section, Mechanics Department, Technical University of Timisoara, Romania ABSTRACT In order to obtain superior performances for reversible axial turbomachines, it is important to know the behaviour of the axial profile cascades in direct and reverse flow in different operation conditions. The paper presents an anlysis of the ideal and incompressible fluid motion round these axial cascades in direct and reverse flow, using BEM. The problem solution was obtained by solving in a series of some mixed boundary-value problems for the Laplace equation in the stream function using linear elements for the domain boundary discretization. A special problem was the imposing of the Kutta-Joukovski-Carafoli condition in the trailing edge zone respectively leading edge zone of the profiles and its influence upon the velocity and pressure

Keywords