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Unformatted text preview: and contact angle between two vertical parallel plates a distance W apart and with b , the width of the plates into the paper as in fig. 2. What will h be for water at 20 C ( = 0.073 N/m) if W = 0.5mm. 4. A small submersible moves at velocity V , in fresh water at 20 C, at 2-m depth, where ambient pressure is 131 kPa. Its critical cavitation number is known to be C a = 0.25. At what velocity will cavitation bubbles begin to form on the body? Will the body cavitate if V = 30 m/s and the water is cold (5°C)? 5. Given the unsteady 2-dimensional velocity distribution: V = kxt i – kyt j +0 k k is a positive constant and the velocity components increase linearly with time. Find the equation of the streamline?...
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- Winter '10