Air at 20°C and 1 atm flows at 20 m/s past the flat plate in Fig P7.20,

Question:

Air at 20°C and 1 atm flows at 20 m/s past the flat plate in Fig P7.20, A pitot stagnation tube, placed 2 mm from the wall, develops a manometer head h = 16 mm of Merriam red oil, SG = 0.827. Use this information to estimate the downstream position x of the Pitot tube. Assume laminar flow. Fig P7.20

Air at 20°C and 1 atm flows at 20 m/s