## Introduction

• 1
Page: 1258: In friction factor relations 34, 35, 36, and 37, replace $δ$ by $D$ in first location, to read as
$1λ=-2log10[2.51Reλ+h3.7Dexp(-j5.66Reλδh)]$
34
$1λ=-1.93log10[1.90Reλ+h3.7Dexp(-j5.66Reλδh)]$
35
$1λ=-2log10[5.74Re0.9+h3.7Dexp(-j12.91Re0.9δh)]$
36
$1λ=-1.932log10[4.22Re0.9+h3.7Dexp(-j9.50Re0.9δh)]$
37
• 2

Page 1259: In Table 1, replace $δ$ by $D$ in the second column, and its corresponding term in the third column. Also in the third column of Eqs. (3a) and (3b), the numerical values $0.754$ and $1.724$ are replaced by $0.88$ and $2.02$, respectively. The corrected Table 1 is given below.