MHD natural convection and thermal radiation of diamond–water nanofluid around rotating elliptical baffle inside inclined trapezoidal cavityMohamed Dhia Massoudi and Mohamed Bechir Ben HamidaEur. Phys. J. Plus, 135 11 (2020) 902DOI: https://doi.org/10.1140/epjp/s13360-020-00921-8