Discuss the below:
Q: A journal bearing may be idealized as a flat plate with another flat plate moving parallel to the first and the space between the two filled by an incompressible fluid. Consider such a bearing with the stationary and moving plates at 10°C and 20°C respectively, the distance between them 3 mm, the speed of the moving plate 5 m/s, and engine oil between the plates.
(a) Calculate the heat flux to the upper and lower plates, and
(b) Determine the maximum temperature of the oil.
GIVEN
Journal bearing: Two flat plates, one stationary, one moving with oil between them
Stationary plate temperature (Ts) = 10°C
Moving plate temperature (Tm) = 20°C
Distance between plate (H) = 3 mm = 0.003 m
Speed of the moving plate (Up) = 5 m/s
ASSUMPTIONS
Steady state
Constant physical properties
Negligible edge effects
Oil isincompressible
