Chapter 2 PROPERTIES OF FLUIDS
... • Vapor pressure (Pv): The pressure exerted by its vapor in phase equilibrium with its liquid at a given temperature. It is identical to the saturation pressure Psat of the liquid (Pv = Psat). • Partial pressure: The pressure of a gas or vapor in a mixture with other gases. For example, atmospheric ...
... • Vapor pressure (Pv): The pressure exerted by its vapor in phase equilibrium with its liquid at a given temperature. It is identical to the saturation pressure Psat of the liquid (Pv = Psat). • Partial pressure: The pressure of a gas or vapor in a mixture with other gases. For example, atmospheric ...
AT Physics II. Air Resistance The motion of
... where L is a characteristic length for the object moving through a fluid (say the radius or the diameter of a sphere), v its speed, ρ the density of the liquid and η its viscosity. Generally, high Reynolds number (anything much bigger than 1) means that viscosity is negligible; low Reynolds number ( ...
... where L is a characteristic length for the object moving through a fluid (say the radius or the diameter of a sphere), v its speed, ρ the density of the liquid and η its viscosity. Generally, high Reynolds number (anything much bigger than 1) means that viscosity is negligible; low Reynolds number ( ...
Abstract-Sumer PEKER - ic-rmm1
... The shear and extensional viscosities effective in flow through converging pipes is investigated for the case of 94% W/O HIPRE as a function of prestirring rate before flow. The internal phase consisted of 1% sorbitol solution, and the external phase, a mixture of mineral oil and polyoxyethelene (2) ...
... The shear and extensional viscosities effective in flow through converging pipes is investigated for the case of 94% W/O HIPRE as a function of prestirring rate before flow. The internal phase consisted of 1% sorbitol solution, and the external phase, a mixture of mineral oil and polyoxyethelene (2) ...
Viscometer
A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Viscometers only measure under one flow condition.In general, either the fluid remains stationary and an object moves through it, or the object is stationary and the fluid moves past it. The drag caused by relative motion of the fluid and a surface is a measure of the viscosity. The flow conditions must have a sufficiently small value of Reynolds number for there to be laminar flow.At 20.00 degrees Celsius the dynamic viscosity (kinematic viscosity x density) of water is 1.0038 mPa·s and its kinematic viscosity (product of flow time x Factor) is 1.0022 mm2/s. These values are used for calibrating certain types of viscometers.