Question: A flat polished copper surface is immersed in a horizontal position in saturated liquid water at a pressure of 571 kPa. The liquid flows over the surface with a free-stream velocity of 1.0 m/s. The surface is 0.2 m long in the direction of flow and is held at a constant and uniform temperature of 435 K. Cavities with a mouth radius of 0.03 mm have been

A flat polished copper surface is immersed in a horizontal position in saturated liquid water at a pressure of 571 kPa. The liquid flows over the surface with a free-stream velocity of 1.0 m/s. The surface is 0.2 m long in the direction of flow and is held at a constant and uniform temperature of 435 K. Cavities with a mouth radius of 0.03 mm have been artificially added over the entire surface. Because of the polishing, naturally occurring cavities