(Solved): 4. Experimental measurements of the convection heat transfer coefficient for a square bar in cross ...

4. Experimental measurements of the convection heat transfer coefficient for a square bar in cross flow yielded the following values: $\mathrm{s}$ $s$ Assume that the functional form of the Nusselt number is $\overline{Nu}=C{\mathrm{Re}}_L^m{\mathrm{Pr}}^n$, where $C,m$, and $n$ are constants. (a) What will be the convection heat transfer coefficient for a similar bar with $L=1\mathrm{m}$ when $V=15\mathrm{m}/\mathrm{s}?$ (b) What will be the convection heat transfer coefficient for a similar bar with $L=1\mathrm{m}$ when $V=30\mathrm{m}/\mathrm{s}?$ (c) Would your results be the same if the side of the bar, rather than its diagonal, were used as the characteristic length?