A propeller is tested in a water tunnel at 20C (similar to Fig 1 12a) The lowest pressure on the body can be estimated by a Bernoulli type relation, pmin po V2 2, where po 1 5 atm and V is the tunnel average velocity If V 18 m s, will there be cavitation If so, can we change the water temperature a...

At 20C from Table A5 pv 2337 kPa Compute the minimum pressure The predicted pressure ...

A propeller is tested in a water tunnel at 20C (similar to Fig. 1.12a). The lowest pressure

Question:

A propeller is tested in a water tunnel at 20°C (similar to Fig. 1.12a). The lowest pressure on the body can be estimated by a Bernoulli-type relation, pmin = po − ρV2/2, where po = 1.5 atm and V is the tunnel average velocity. If V = 18 m/s, will there be cavitation? If so, can we change the water temperature and avoid cavitation?