Փոփոխական ճնշման տակ արտահոսման ելքի գործակցի վարքի փորձնական ուսումնասիրություն

Abstract

This paper discusses the dynamic character of the of the coefficient of liquid outflow from a vertical pass checker of the cylindrical open container depending  on the drop of the liquid level. In the case of leakage from an open container of finite volume, the free surface of the liquid decreases with time, therefore the pressure decreases with time. The decrease in leakage output with time under variable pressure is obviously related to the decrease in pressure, and the change in output coefficient is often overlooked. Thus, when determining the time interval for emptying the basins, the size of the output coefficient is taken as a constant. In unsteady movement of fluid under pressure, the instantaneous power is usually assumed to determine through the pressure at the given moment of time according to the law of motion. In particular, when determining the drainage interval of the reservoir, the discharge coefficient is usually assumed to be steady-state  and equal to the outflow coefficient  under constant pressure.