Power of a rocking rod
= Power of a rocking rod
{title2=$\langle P\rangle$}
The leading mean <viscous dissipation> of a translating and rotating rigid rod is $c_\perp\epsilon^2\omega^2(La^2+L^3/12)/2$ for equal dimensionless translation and angle amplitudes. Both terms are quadratic in amplitude; rotational material <velocity> cannot be omitted simply because the angle is small.