Module One Flashcards
Fluids divided into
Liquid and gases
hard to compress as it follows the shape of its container with an upper free surfaces.
Liquid
is easy to compress as it also expands to fill its container where there is no free surface.
Gas
Characteristics of Fluid
Compressibility ● Density ● Pressure ● Buoyancy ● Viscosity
Applying pressure to a fluid in order to put greater mass into a small container
Compressibility
Applying pressure to a fluid in order to put greater mass into a small container
Compressibility
is more compressible than liquid
Gas
defined as the mass contained in a unit volume.
Density
is a measurement of the force per unit area on a object in the fluid or on the surface of a closed container.
Fluid pressure
This pressure can be caused by
gravity, acceleration, or by forces outside a closed container.
is defined as force divided by the area on which the force is pushing.
Pressure
is a device to measure pressures
Manometer
It is the tendency of a body to float
or to rise when
submerged in a fluid testing an object’s buoyancy.
Buoyancy
Formula of buoyancy
Fluid volume x density x acceleration due to gravity
is a fluid’s resistance to flow.
The more viscous a fluid is, the harder it
s
incompressible and it is an imaginary fluid that doesn’t exist in reality. Also, it
ideal
fluid
A fluid which possesses at least some viscosity
real fluid.
all the fluids existing or present in the environment are
real fluids.
Some of its examples are petrol, air etc.
Real Fluid
The fluid whose viscosity remains constant is known
Newtonian fluid.
These fluids are independent of the amount of shear stress applied to them with respect to time.
Newtonian Fluid
The relationship between the viscosity and shear stress of these fluids is linear.
Newtonian Fluid
Some of its examples are water, air, alcohol, glycerol, thin motor oil etc.
Newtonian Fluid
If the real fluid does not obey Newton’s law of viscosity
Non-Newtonian Fluid
