An aluminium alloy rod has a length of 1.6m at a temperature of 35°C. Determine the increase in length that occurs when the rod is heated to a temperature of 145°C. The coefficient of linear expansion for Al alloy = 0.000022/°C

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Hydraulic fluid with a sg. of 0.78 is flowing through a 1.5 in. i.d. pipe at 58 gal/min. the fluid has an absolute viscosity of 11.8 x 105 lbf-sec/ft2. is the flow laminar, turbulent or within the critical range? give both a numerical reynolds number and a term answer.

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m