Blowing air through a straw

As shown in the diagram, a T-shaped straw is dipped into a glass of water. If you blow air through the opening on the left, leaving the opening on the right open, what will happen?

Details and Assumptions:

  • The incoming air flow is V˙=0.5l/s.\dot V = 0.5\, \text{l/s}.
  • The straw with diameter 6mm6 \,\text{mm} has a length of 8cm,8 \,\text{cm}, half of which is immersed in the water.
  • The densities of air and water are ρ=1.2kg/m3 \rho = 1.2 \,\text{kg}/\text{m}^3 and 1000kg/m31000 \,\text{kg}/\text{m}^3, respectively.
  • The viscosity of air is neglected so that there is no pressure drop along the pipes.

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