$3\mathrm{.}3$A$.$ Estimating Heat and Mass Transfer Flux Rates from

Micrometeorological Data

Brooks and Pruitt ${?}^{25}$ measured wind velocity, air temperature, and moistur

near the ground. The data listed in Table $3\mathrm{.}3$A are a part of that work.

Assume that the fluid properties at the $90cm$ elevation represent the bulk

do the following:

Obtain the shear stress at the ground, ${}_0,$ in $\frac{g}{c}m*s^2.$

Estimate the gas$-$phase mass transfer coefficient for water vapor, ${?}^3{k}_{A1}^{\text{'}}$ in

$c\frac{m}{h},$ from $($a$)$ Reynolds' analogy, $($b$)$ von K$$rm$$n$\text{'}$s analogy, and $($c$)$ the

Chilton$-$Colburn analogy.

Problems

Table $3\mathrm{.}3$A

Based on the Chilton$-$Colburn analogy value, estimate the water flux rate,

$n_A,$ in $\frac{g}{m^2}*h,$ and the direction of transport.

Based on the Chilton$-$Coburn analogy, estimate the sensible heat flux rate,

$q$ in $\frac{J}{m^2}*h,$ and the direction of transport.