Properties of Fluids Flashcards
matter flows under pressure
fluid
material that cannot sustain a tangential or shearing force
fluid
Size independent
Intensive Property
Size-dependent
Extensive Property
homogeneous matter with no holes
continuum
Internal energy
Pointer for direction of energy transfer as heat
Temperature
two body temperature are the same
thermal equilibrium
compression force exerted by a fluid per unit area
Pressure
m/V
Density
Pv=pRT or P=pRT
Density Ideal Gases
ratio of the density of a substance to the density of some standard substance at a specified temperature
Specific Gravity
Kinetic, Potential, Electrical etc.
Joules
Energy
measure of heat energy required to increase temperature of a unit mass
Specific heat
force of flowing fluid exerts on a body in the flow direction
drag force
due to attractive forces between molecules
pulling forces
cohesive forces between liquid molecules are responsible for the phenomenon
surface tension
cohesive forces between liquid molecules are responsible for the phenomenon
surface tension
rise or fall of a liquid in a small-diameter tube
capillary effect
curved free surface in the tube
meniscus
mercury meniscus
non wetting fluid
liquid boils and is in equilibrium with its own vapor
Vapor pressure
liquid pressure is dropped below the vapor pressure due to a flow phenomenon
cavitation
