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For fully developed laminar flow through a parallel-plate channel, the x-momentum equation has the form
The purpose of this problem is (o develop expressionsfor the velocity distribution and pressure gradient analogous to those for the circular tube in Section 8. I.
(a) Show that the velocity profile,
where
and
(b) Write an expression defining the friction factor, f, using the hydraulic diameter
(c) The friction factor is estimated from the expression
(d) Airflow in a parallel-plate channel with a separation of 5 mm and a length of 200 mm experiences a pressure drop of
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Fundamentals of Heat and Mass Transfer
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