STUDY OF UNDER PRESSURE VISCOUS FLUID PULSATING FLOW IN CYLINDRICAL PIPE OF CIRCULAR CROSS-SECTION

摘要

Often due to the pressure gradient change ?P/?a- in pressure systems the stationary flow pattern is disturbed initiating respective time-dependent change of hydraumechanical parameters at the cross-section. As a consequence of the pressure gradient change under the influence of varying friction and inertia forces unstable flow of fluid occurs. The study of this phenomenon presents important practical and theoretical interest.