Chapter 2 Flashcards
What is Specific Weight?
Represented by gamma (Y)
Specific Weight = weight (mg) per unit volume (V)
also = p (density) • g
What is relative density?
Represented by sigma, also known as specific gravity
The ratio of fluid density to a standard reference density
The standards reference density for a liquid is H2O = 1000 kg/m^-3
The standard reference density for a gas is air = 1.21 kg/m^3
What is fluid pressure?
The normal stress within the fluid,
Stress = force per unit area
What is bulk modulus?
It is referred to as K in the formula booklet,
It is the constant of proportionality between the increase of internal pressure and the decrease in liquid volume/liquids volume, which is directly proportional
what is equation of state
p(theta) in formula book
alpha = thermal expansion coefficient with units K^-1 or •C^-1
What is the specific gas constant of air?
Rs,airs = 287
What temperature unit can you use for an ideals gas equation?
Only Kelvin
What is Kelvin?
0C = 273.15K
What’s the salinity coefficient at 20*C
Beta = 0.561
What is max Salinity?
S=0.357
What is density at max salinity?
1200kg/m3
What is the equation of density for a linear stratified liquid?
p(h) = p0 + [(p1-p0)/ H] • h
Where H = Max depth
Where p1 is density at max depth
Where p0 is density at surface
