Open AccessScrew flow in cylindrical coarse filter
Author(s) -
Alexander I. Esin,
Dmitry Aleksandrovich Soloviev,
M G Zagoruyko,
D A Kolganov,
T A Marynova
Publication year - 2022
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/979/1/012068
Subject(s) - mechanics , filter (signal processing) , flow (mathematics) , transverse plane , vortex , instability , bessel function , laminar flow , work (physics) , rotation around a fixed axis , geometry , physics , materials science , classical mechanics , mathematics , optics , structural engineering , engineering , thermodynamics , electrical engineering
This work discuss the screw type of liquid (irrigation water) motion in a cylindrical coarse filter of a sprinkler machine. A vortex helical flow arises due to the instability of a rectilinear longitudinally uniform flow and uneven distribution of tangential stresses along the wetted perimeter of the cross section of the flow and manifests itself in the form of secondary flows of transverse circulation. The solution of the equations of motion in the gap "mesh - housing" of the filter, expressed in terms of the Bessel function, is obtained. Profiles of longitudinal and rotational velocities in the gap and in the entire filter have been constructed.