In combustion engines oil is used for lubrication. The oil enters the oil cooler while its temperature is still high. Inside the oil cooler, the oil will move around the pipes that are fitted with...

Extracted text: In combustion engines oil is used for lubrication. The oil enters the oil cooler while its temperature is still high. Inside the oil cooler, the oil will move around the pipes that are fitted with fins that release heat. Once the oil is processed, it will leave the cooler at a temperature that is cooler. This cycle continued repeatedly. You are given that unused engine oil exiting the engine block at 60°C flows over a flat long plate which has length of 5 m which is the oil cooler for a combustion engine. The plate temperature is 20°C and the oil flows with velocity of 2 m/s. You are required to calculate: (i) Total drag force, (ii) The rate of heat transfer per unit width of the entire plate. You are given that the critical Reynolds number is 5x10°. oil T = 60°C V-=2 m/s Q° T;-20°C L= 5 m