BME 401 Final Exam Questions &
Answers (Grade A+)
If the mach number is small, Ma<<1 -
correct answer ✅Consider the fluid incompressible
If the Peclet number is large, Pe>>1 -
correct answer ✅Diffusive flux is small compared the convection
flux
Transition to turbulence occurs when -
correct answer ✅Reynolds number is large
Heat diffusion equation -
correct answer ✅Linear partial differential equation
Heat diffusion equation -
correct answer ✅Parabolic second order PDE
How many initial and boundary conditions are needed for the 2D
heat equation -
correct answer ✅One initial and four boundary
, BME 401 Final Exam Questions &
Answers (Grade A+)
what kind of boundary condition is the no slip condition when v = 0
-
correct answer ✅Dirichlet b.c. first type
Consider 2D heat diffusion equation in a rectangular (x,y) domain,
which boundary conditions are incompatible -
correct answer ✅A and D
What is the local truncation error of the forward Euler method -
correct answer ✅of the order of h^2
what is the global truncation error of the backward Euler method -
correct answer ✅of the order of time step, h
what is the local truncation error of the Heuns method -
correct answer ✅of the order of h^3
what is true regarding the forward Euler method -
correct answer ✅global truncation error of the order h and stable
if the time step is smaller than the critical time step
Answers (Grade A+)
If the mach number is small, Ma<<1 -
correct answer ✅Consider the fluid incompressible
If the Peclet number is large, Pe>>1 -
correct answer ✅Diffusive flux is small compared the convection
flux
Transition to turbulence occurs when -
correct answer ✅Reynolds number is large
Heat diffusion equation -
correct answer ✅Linear partial differential equation
Heat diffusion equation -
correct answer ✅Parabolic second order PDE
How many initial and boundary conditions are needed for the 2D
heat equation -
correct answer ✅One initial and four boundary
, BME 401 Final Exam Questions &
Answers (Grade A+)
what kind of boundary condition is the no slip condition when v = 0
-
correct answer ✅Dirichlet b.c. first type
Consider 2D heat diffusion equation in a rectangular (x,y) domain,
which boundary conditions are incompatible -
correct answer ✅A and D
What is the local truncation error of the forward Euler method -
correct answer ✅of the order of h^2
what is the global truncation error of the backward Euler method -
correct answer ✅of the order of time step, h
what is the local truncation error of the Heuns method -
correct answer ✅of the order of h^3
what is true regarding the forward Euler method -
correct answer ✅global truncation error of the order h and stable
if the time step is smaller than the critical time step
