The figure shows the pressure distribution for a Gttingen 387-FB lifting vane (19) when the angle of

The figure shows the pressure distribution for a Göttingen 387-FB lifting vane (19) when the angle of attack is 8°. If such a vane with a 20 cm chord were used as a hydrofoil at a depth of 70 cm, at what speed in 10°C freshwater would cavitation begin? Also, estimate the lift per unit of length of foil at this speed.

Transcribed Image Text:

2.0 C, for upper side of lifting vane -1.0 20 cm +0.5 C, for lower side of lifting vane +1.0