Turn raise for free SD

[ep510]

I raised because:

(1) I could be ahead, so the raise is for value, and to charge him for a draw.
(2) I'm behind to an ace, but villian could have raised pf with Axs, and donkbet this turn with top pair. However, I doubt he'll 3-bet with a weak ace, and possibly not even with AK, AQ. If this is the case, then raising will often gain me an extra bet because if I were to just call turn and hit, villian could likely check-call river because of the 4 to a straight on the board.