1. Water exits a 1-cm-diameter outlet of a faucet. Estimate the maximum speed that would result in a laminar flow if the water temperature is
(a) 20-C, (b) 50-C, and (c) 100-C. Assume Re ¼ 2000.
2. Air flows over and parallel to a flat plate at 2 m=s. How long is the laminar portion of the boundary layer if the air temperature is
(a) 30-C, (b) 70-C, and (c) 200-C. Assume a high-fluctuation level on a smooth rigid plate.