DETERMINATION OF THE FLOW CHARACTERISTICS IN A PIPE WITH TORTUOSITY

Abstract

A method is developed to allow one to find changes in the flow characteristics in straight pipes, caused by the appearance of their local planar tortuosity, based on the data taken from the appropriate video record of fluid motion in the pipes only. The method is based on replacement of real flow with the averaged one, and subsequent calculation of its characteristics in terms of the corresponding averaged flow characteristics. The method is non-invasive, has the engineering accuracy and allows one not to take account of a number of identical factors for the originally straight and subsequently tortuous segment of the pipe under consideration. In addition, it allows one to find the flow characteristics of interest at any time after carrying out the video record, is not associated with solving complicated technical problems, and does not require special facility to be used, special professional training and significant financial and temporal expenses.