摘要:In this review work, thermal and flow fields due to natural convection of in curvilinear enclosures was conducted for different geome trie s using nnaofluids. Different computational techniques are applied to get results for this geometries. The main difficultie s on this problem is to obtain of grid distribution.It was found that the geometry parame ter is an important control parameter on heat and fluid flow in natural convection. In general, heat transfe r increase s with the addition of na noparticle into the base fluid.