Analysis of nanofluid natural convection in a particular shape of a cavity Imene Rahmoune, Saadi Bougoul and Ali J. Chamkha Eur. Phys. J. Spec. Top., 231 13-14 (2022) 2901-2914 Published online: 10 May 2022 DOI: 10.1140/epjs/s11734-022-00588-5