Turbulent convective mass transfer downstream of a perforated baffle blockage

Abstract An experimental investigation has been performed to determine convective heat transfer downstream of a perforated baffle blockage situated on the lower principal wall of a rectangular duct. The experiments were carried out via a mass transfer technique, which enabled a local measurement of transfer coefficients. The study was confined to blockage ratio h / H = 0.5, the Reynolds number ranged from 5,000–30,000, and the test duct had a 5:1 aspect ratio. The performance evaluation indicated that, under identical mass flow, the baffle plate improved the transfer coefficients, whiel under other constraints no improvement was observed.

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