**Q1**Predict/confirm the shape of the velocity profile and the pressure field using a 1D model based on continuity equation and Bernoulli's theorem.

(

*Hint*: You can consider 3 different sections — the inlet, the middle of the throat, and the outlet — and then compute the pressure drop and the pressure recovery. To answer this question you will need to use the additional function

`Online\_RB\_pointwise\_Bernoulli`

provided to compute
pointwise velocity/pressure and the associated L1 error bound.)
**Q2**What is the pressure behavior and the velocity profile at high curvature points in the throat-inlet connection and in the throat-outlet connection?

(

*Hint*: To answer this question you will need to use the additional function

`Online\_RB\_pointwise\_Bernoulli`

provided to compute
pointwise velocity/pressure and the associated L1 error bound.)
**Q3**How does the height of the throat (i.e.,

`mu3`

parameter) affect the low pressure at the "apex" of the curve in
the transition region?
**Q4**How long does it take the flow to become 1D in the throat region? What is the influence (if any) of the length of the throat (i.e.,

`mu3`

parameter)?