Experiments have been conducted to determine local heat transfer coefficients for flow perpendicular to a long, isothermal bar of rectangular cross section. The bar is of width c parallel to the flow, and height d normal to the flow. For Reynolds numbers in the range 10< Red <5 × 104, the face-averaged Nusselt numbers are well correlated by an expression of the form \overline{N u}_{d}=\bar{h} d / k=C R e_{d}^{m} P r^{1 / 3} The values of C and m for the front face, side faces, and back face of the rectangular rod are found to be the following: Determine the value of the average heat transfer coefficient for the entire exposed surface (that is, averaged over all four faces) of ac = 40-mm-wide, d = 30-mm-tall rectangular rod. The rod is exposed to air in cross flow at V = 16 m/s, T = 300 K. What is the value of the kinematic viscosity of air at 300 K, in m2/s? v=________ m^2 /s

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experiments have been conducted to determine local heat transfer coeff

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Experiments have been conducted to determine local heat transfer coefficients for flow perpendicular to a long, isothermal bar of rectangular cross section. The bar is of width c parallel to the flow, and height d normal to the flow. For Reynolds numbers in the range 10< Red <5 × 104, the face-averaged Nusselt numbers