Average of $\Dzero$, $\Dplus$ and $\Dstar$ $v_2$ as a function of$\pt$ at $\sqrtsNN=5.02 \tev$, compared with the same measurement at $\sqrtsNN=2.76 \tev$ and to the $\pi^\pm$ $v_2$ measured with the EP method and with the scalar production (SP) method . |