Table 5.

Variation in \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${Nu}_{\text{avg}}$$\end{document} for circular block.

Circular block
Ri	\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n=0.6$$\end{document}	\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n=1$$\end{document}	\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n=1.4$$\end{document}
Pr = 1
0.1	5.2080635250405685	5.207986205207084	5.2080468930227015
1	5.208064765973295	5.208065363577031	5.20806672138569
10	5.208064766563796	5.20806567400318	5.2080667602122
Pr = 10
0.1	5.208748196021137	5.208758196513681	5.208922582846382
1	5.208749424643913	5.208837373703201	5.2089424174913574
10	5.208749425050214	5.208837684202272	5.208942456322602