Air at 208C fl ows through a smooth duct of diameter 20 cm at an average velocity of 5
Chapter 6, Problem p6.94(choose chapter or problem)
Air at 208C fl ows through a smooth duct of diameter 20 cm at an average velocity of 5 m/s. It then fl ows into a smooth square duct of side length a. Find the square duct size a for which the pressure drop per meter will be exactly the same as the circular duct
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