Drag of bodies of revolution in cavitating flow
The present paper describes work in progress concerning fluid dynamics of cavitating flow. The flow field and drag of bodies of revolution at zero angle of attack is predicted for cavity coefficients from fully-wetted flow to sigma = 0. Excellent agreement for drag coefficient is demonstrated between theory and a water tunnel experiment. It is shown that skin friction drag is the dominant drag component for zero cavity coefficient. Excellent agreement is also demonstrated between theory and a high-speed water entry experiment. This agreement corroborates the experimental measurement that the cavity pressure is equal to the water vapor pressure, contrary to low-speed water entry. 14 refs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5898955
- Report Number(s):
- SAND-85-2324C; CONF-860517-1; ON: DE86005171
- Country of Publication:
- United States
- Language:
- English
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