Transition region adaptive conduction (TRAC) in multidimensional magnetohydrodynamic simulations Yu-Hao Zhou, Wen-Zhi Ruan, Chun Xia and Rony Keppens A&A, 648 (2021) A29 Published online: 07 April 2021 DOI: 10.1051/0004-6361/202040254