BME 409 Exam 3 || Already Graded A+.
[St] = correct answers fL/v
[Eu] = correct answers P0-P(infinity)/(p*v^2)
[1/Fr]^2 = correct answers gL/v^2
[1/Rey] correct answers u/pvL
Creeping Flow is also known as _____ Flow or ___ _____ Flow correct answers Stoke, Low
Reynold
Creeping Flow assumptions (3) correct answers Neglect gravity, Steady/oscillatory flow, St~1
(advective and steady term dissappear)
Creeping Flow Equation correct answers Del(P)=uDel^2(v)
In creeping flow what is density used for? correct answers To determine that the reynold's
number is small
Equation for Drag Force on a sphere for Creeping Flow correct answers F=3piuvD
Euler Equation correct answers p(dv/dt+(v*Del)v)=-DelP+pg
Euler Assumptions (2) correct answers High Reynolds number, Net viscous forces are neglible
Why is the irrotation assumption more restrictive than inviscid? correct answers Because
irrotational is true for all streamlines (they are the same). Inviscid is only true of individual
streamlines.
What is Reyx from laminar to transitional? correct answers 1e5
What is Reyx from transitional to fully turbulent? correct answers 3e6
What is Rey(critical Engineering)? correct answers 5e5
A higher Reynold number results in a ______ boundary layer correct answers thinner
A higher Reynold number makes the boundary layer approximation more or less accurate?
correct answers More
Boundary Layer Assumptions (4) correct answers Steady Flow, 2D flow, Neglect Gravity,
Laminar Flow Field
In a boundary layer, the pressure in the y direction is constant (T/F)? correct answers True
[St] = correct answers fL/v
[Eu] = correct answers P0-P(infinity)/(p*v^2)
[1/Fr]^2 = correct answers gL/v^2
[1/Rey] correct answers u/pvL
Creeping Flow is also known as _____ Flow or ___ _____ Flow correct answers Stoke, Low
Reynold
Creeping Flow assumptions (3) correct answers Neglect gravity, Steady/oscillatory flow, St~1
(advective and steady term dissappear)
Creeping Flow Equation correct answers Del(P)=uDel^2(v)
In creeping flow what is density used for? correct answers To determine that the reynold's
number is small
Equation for Drag Force on a sphere for Creeping Flow correct answers F=3piuvD
Euler Equation correct answers p(dv/dt+(v*Del)v)=-DelP+pg
Euler Assumptions (2) correct answers High Reynolds number, Net viscous forces are neglible
Why is the irrotation assumption more restrictive than inviscid? correct answers Because
irrotational is true for all streamlines (they are the same). Inviscid is only true of individual
streamlines.
What is Reyx from laminar to transitional? correct answers 1e5
What is Reyx from transitional to fully turbulent? correct answers 3e6
What is Rey(critical Engineering)? correct answers 5e5
A higher Reynold number results in a ______ boundary layer correct answers thinner
A higher Reynold number makes the boundary layer approximation more or less accurate?
correct answers More
Boundary Layer Assumptions (4) correct answers Steady Flow, 2D flow, Neglect Gravity,
Laminar Flow Field
In a boundary layer, the pressure in the y direction is constant (T/F)? correct answers True
