Happy lockdown. I am currently trying to align three split equations together while using the overbrace function to describe the functions of each section (they are symmetrical but for co-ordinate direction). The current code I have is:
\begin{align}
\label{eqn:mom2}
\begin{split}
&x : \overbrace{\rho \frac{Du}{Dt}}^\text{Convection} = \overbrace{\rho g_x - \frac{\delta p}{\delta x} }^\text{Pressure} + \overbrace{\mu (\frac{\delta^2 u}{\delta x^2} + \frac{\delta^2 u}{\delta y^2} + \frac{\delta^2 u}{\delta z^2}) }^\text{Diffusion}
\\
&y : \rho \frac{Dv}{Dt} = \rho g_y - \frac{\delta p}{\delta y} + \mu (\frac{\delta^2 v}{\delta x^2} + \frac{\delta^2 v}{\delta y^2} + \frac{\delta^2 v}{\delta z^2})
\\
&z : \rho \frac{Dw}{Dt} = \rho g_z - \frac{\delta p}{\delta z} + \mu (\frac{\delta^2 w}{\delta x^2} + \frac{\delta^2 w}{\delta y^2} + \frac{\delta^2 w}{\delta z^2})
\end{split}
\end{align}
If you see the attached, the presence of the overbracket misaligns the first equation line with the other two.
Would appreciate any help massively, causing a big headache!!
Thank you in advance,