pi_groups.tex

\documentclass[11pt,a4paper]{scrartcl}\usepackage{amssymb,bm}\usepackage{amsmath}\begin{document}
\begin{equation}\pi(1)=\frac{area}{length ^{2}}\end{equation}
\begin{equation}\pi(2)=\frac{volume}{length ^{3}}\end{equation}
\begin{equation}\pi(3)=\frac{soundspeed}{velocity }\end{equation}
\begin{equation}\pi(4)=\frac{length\cdot accel}{velocity ^{2}}\end{equation}
\begin{equation}\pi(5)=\frac{pressure}{velocity ^{2}\cdot density }\end{equation}
\begin{equation}\pi(6)=\frac{mass flow}{length ^{2}\cdot velocity \cdot density }\end{equation}
\begin{equation}\pi(7)=\frac{force}{length ^{2}\cdot velocity ^{2}\cdot density }\end{equation}
\begin{equation}\pi(8)=\frac{viscosity}{length \cdot velocity \cdot density }\end{equation}
\begin{equation}\pi(9)=\frac{holeperimeter}{length }\end{equation}
\begin{equation}\pi(10)=\frac{holearea}{length ^{2}}\end{equation}
\end{document}