A STUDY ON SUDDEN EXPANSION HYDRODYNAMIC PHENOMENA OCCURRING IN CYLINDRICAL PIPES

Introduction: This paper studies the frequency with which hydrodynamic parameters change in sudden expansion section of axisymmetric pressure flow, based on boundary layer equations. Methods: The suggested method reveals regularity changes flow transitional area, making it possible to obtain a velocity profile any cross-section under common initial and conditions. Based general solutions, we studied processes occurring area effective within movement, following cases: a) when is constant at point inlet face; b) distributed along face according parabolic law. Our calculations were carried out for different values factor. Results: results computer-aided experimental study, obtained diagrams length distributions fluid inflowing into expanded section. We also determined patterns distribution relevant