Fluid materials Flashcards
WHAT IS UPTHRUST
weight of water displaced
if W<upthrust what happens
object floats on top
when W=upthrust what happens
object floats
is W>upthrust what happens
object sinks
What is Archimedes principle
The upthrust exerted on a body immersed in a fluid is equal to the weight of the fluid that the body displaces
What is assumed in Stoke’s law?
-Assume object is a sphere
-Assume object is at terminal velocity
-Assume flow is laminar
what are the two types of flow
laminar
turbulent
what is turbulent flow
type of flow in which fluid undergoes fluctuations and mixing
what is laminar flow
smooth or regular movement of fluid particles
what is weight measured in
Newtons
What is upthrust measured in
Newtons
what is F in stokes law
drag force
what is η
fluid viscosity
what is r
sphere radius
what is v
velocity of sphere
