Average of prompt $\Dzero$, $\Dplus$, and $\Dstar$ meson $v_2$ as a function of $\pt$ in $\PbPb$ collisions at $\sqrtsNN=5.02 \TeV$ in the small-$q_2$, large-$q_2$ (see text for details), and unbiased samples, for the 0--10\% (top panels) and 30--50\% (bottom panels) centrality classes, compared to model calculations . In the \lido{}, \dabmod{}, and \catania{} predictions, the ESE selection is performed with a $q_2$ estimator, while in the \powlang{} model the elliptic eccentricity $\epsilon_2$ is used.