Fluids Flashcards
Density, Buoyancy, Hydrostatic Pressure, Viscosity, Continuity Equation, Turbulence, Surface Tension, Bernoulli's Equation, Venturi Effect
A ____ is either liquid or gas
A FLUID is either liquid or gas
____ is the heaviness of a fluid
DENSITY is the heaviness of a fluid
Density is defined as: ____
Unit: ____
Density is defined as: p = m/V
Unit: kg/m³
Specific gravity is the density of ____ compared to the density of ____
Specific gravity is the density of A SUBSTANCE compared to the density of WATER
Specific gravity is defined as: ____
Unit: ____
Specific gravity is defined as: SG = p(substance)/p(water)
Unit: NO UNIT
Density of water is: ____
Density of water is: 1000kg/m³ = 1g/m³
Pressure is defined as: ____
Unit: ____
Pressure is defined as: P = F/A
Unit: Pa (N/m²)
Pressure of a fluid at rest is independent of ____
Pressure of a fluid at rest is independent of AREA
Hydrostatic pressure of a fluid at rest defined as: ____
Unit: ____
Hydrostatic pressure of a fluid at rest defined as: P = pgh
Unit:
P = pgh
P - ____
p - ____
g - ____
h - ____
P = pgh
P - PRESSURE
p - DENSITY
g - GRAVITATIONAL CONSTANT
h - DEPTH
Atmospheric pressure is: ____Pa
Atmospheric pressure is: 101,000Pa
____ is a measure of pressure compared to local atmospheric pressure
GAUGE PRESSURE is a measure of pressure compared to local atmospheric pressure
Absolute pressure is defined as: ____
Absolute pressure is defined as: P(abs) = P(gauge) + P(atm)
Pascal’s principle states that ____ applied anywhere to an enclosed incompressible fluid will be distributed undiminished throughout that fluid
Pascal’s principle states that PRESSURE applied anywhere to an enclosed incompressible fluid will be distributed undiminished throughout that fluid
A hydraulic lifts use the equations: ____
A hydraulic lifts use the equations: F₁d₁ = F₂d₂ OR F₁/A₁ = F₂/A₂
____ force is an ____ (direction) force acting on a submerged object, and is equal to the ____ of displaced fluid
BUOYANT force is an UPWARD force acting on a submerged object, and is equal to the WEIGHT of displaced fluid
Buoyant force is defined as: ____
Unit: ____
Buoyant force is defined as: F(b) = p(fluid)Vg = p(fluid)AgΔh = m(fluid)g = W(fluid)
Unit: N
F(b) = p(fluid)Vg
F(b) - ____
p(fluid) - ____
V - ____
g - ____
F(b) = p(fluid)Vg
F(b) - BUOYANT FORCE
p(fluid) - DENSITY of fluid
V - VOLUME displaced
g - GRAVITY
Buoyant force does not change with ____
Buoyant force does not change with DEPTH
A floating object displaces an amount of fluid equal to its ____
A floating object displaces an amount of fluid equal to its WEIGHT
A fully submerged object displaces an amount of fluid equal to its ____
A fully submerged object displaces an amount of fluid equal to its VOLUME
The floating equation states that the submerged fraction equals: ____
Unit: ____
The floating equation states that the submerged fraction equals: Fraction SUBMERGED = p(floating object)/p(fluid)
Unit: %
