A 1/10th scale model of an airplane is tested in a wind tunnel. The Reynolds number of the model is the same as that of the full scale airplane in air. The velocity in the wind tunnel is then .
O 1/10th that of the full scale airplane.
O the same as that of the full scale airplane.
O 10 times that of the full scale airplane.
O 100 times that of the full scale airplane.

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.