Shape of Slender Axisymmetric Ventilated Supercavities

Figure 18

The dependences 𝜎^(cr)₀ (𝜎_𝑣) for the empty isothermal cavity (𝑅_𝑏≡0, 𝛾=1, and 𝜀=0.1) at different values of the Froude number. Curves 1–5 correspond to the cavities, created by the conical cavitator (𝛽=0.1), and curves 6–10 correspond to base cavities (𝛽=−0.1). The direction of the flow coincides with the direction of the gravity for the curves 1, 2, 9, and 10 and is opposite for the curves 4–7. The cases Fr→∞ are shown by lines 3 and 8; Fr=5 corresponds to lines 1, 5, 6, and 10; Fr=10 corresponds to lines 2, 4, 7, and 9. The restriction 𝜎^(cr)₀=𝜎_𝑣 is shown by the bold line 11.