Homologous spherical flow
= Homologous spherical flow
{title2=$\mathbf u=q(t)\mathbf r$}
A homologous spherical flow has velocity proportional to radius. Its <velocity gradient> is $q(t)I$ and its <velocity divergence> is $3q(t)$.
= Homologous spherical flow
{title2=$\mathbf u=q(t)\mathbf r$}
A homologous spherical flow has velocity proportional to radius. Its <velocity gradient> is $q(t)I$ and its <velocity divergence> is $3q(t)$.