Sedimentation shock
= Sedimentation shock
{title2=$U=[j]/[\phi]$}
A moving discontinuity of <particle volume fraction> in <kinematic sedimentation>. Conservation of particle <volume> gives the <Rankine-Hugoniot condition> $U[\phi]=[j]$ in a consistently oriented coordinate. A clearing front and a deposit front can both be <sedimentation shocks>. A stationary deposit uses zero particle flux; its compacted branch need not obey the suspension flux law.