“Free Convection in an Inclined Concentric Annular Square Cavities Filled With Porous Medium and Heated By Non-Uniform Temperature” (2010) Al-Khwarizmi Engineering Journal, 6(3), pp. 45–60. Available at: https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/502 (Accessed: 19 December 2024).