week 4 Flashcards
what does inviscid mean
zero viscosity
what effect does no viscostiy have
no heat transfer or thermal conductivity
what is fluid dynamics
analysis of fluid in motion
what 2 things can fluid flow be classified under
uniform and steady
means of fluid flow:
uniform
steady
uniform: flow condtions are the same at every point in the fluid
steady: flow conditions may differ from point to point, but DO NOT chnage with time
what does steady uniform flow mean?
conditions DO NOT change with position in the stream or with time
what does steady non-uniform flow mean?
conditons DO change from point to point in the stream but do not chnage wiht time
are fluids compressible?
yes even water, their density will change as pressure change, however under unsteady conditions
are fluids compressible under steady conditions?
no they are incompressible
what is a laminar flow
particles flow along smoothly parallell, without deviation
what is a turbulent flow
particles move in a irregular manner, usually occuring in fast moving liquid
how would you describe turbulent flow
chaotic
what is a streamline
this is the path of one particle of fluid
what does the “head” correspond to
energy per unit weight of flow
