Enhanced dynamics of active Brownian particles in periodic obstacle arrays and corrugated channels Sudipta Pattanayak, Rakesh Das, Manoranjan Kumar and Shradha Mishra Eur. Phys. J. E, 42 5 (2019) 62 Published online: 23 May 2019 DOI: 10.1140/epje/i2019-11826-7