فهرس المقالات Trapezoidal cavity حرية الوصول المقاله صفحة الملخص نص كامل 1 - Lattice Boltzmann method for natural convection of nanofluid flow in a trapezoidal-shaped sinusoidal cavity by considering Brownian motion Nemat Ebrahimi Hossein Ahmadi Danesh Ashtiani Davood Toghraie