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Thermals Exam 2

QuestionAnswer
Fluid liquid or gas
Fluid Statics Study of stationary fluid
Fluid Dynamics Study of Moving fluids
U tube manometer Device that measures pressure based on the relationship between pressure and depth
Surface Force act only on a surface of a control volume
Body force act on all particles throughout the volume
Incompressible Constant Density
psig British Units Gauge Pressure
psia British Units Absolute Pressure
kPa SI units for Pressure
Specific Gravity Ratio of the density of a liquid to the density of water at 4 degrees Celsius (1000 kg/m^3)
Immiscible Dosent mix with water
In multiple fluids, the pressure will be the same at two points of equal depth if... ...the points can be connected by an imaginary line that lies entirely within a single fluid.
Buoyancy Force Equal to the weight of the fluid displaced by the object
Closed System No mass flow in or out
Open System Mass flows across the system boundary
Steady State Total mass remains the same over time
inviscid zero viscosity
streamline path that a fluid takes as it accelerates through the nozzle (tangent to the velocity vector)
Streamtube Control volume that is finite in length but infinitesimally thin in the dimension perpendicular to the streamline
specific quantity per unit mass
isobar line on constant pressure on a graph
saturated vapor The vapor is at the point where if any energy is removed some of the vapor will turn into a liquid
superheated vapor when energy is added to a saturated vapor
two phase mixture mixture of liquid and gas
saturated liquid addition of energy vaporizes some of the liquid
subcooled liquid removal of energy from the liquid
saturation temperature the temp at which the saturated vapor, subcooled liquid and saturated liquid exist
saturated vapor line line at which vapor begins to condense
saturated liquid line line at which liquid begins to boil
liquid vapor dome region enclosed by the saturated liquid and vapor lines
Quality mass fraction of vapor present in a two phase mixture
State principle Two independent thermodynamic properties are needed to completely specify the state of a pure substance
Created by: EllieCohen
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