Effect of magnetic field on natural convection in a triangular enclosure filled with nanofluid

► The current work investigated natural convection nanofluid in presence of magnetic field. ► The results are registered for different position of both heat sources on the bottom wall. ► The highest reduction of Num in with Ha is registered at Ra = 106 for Ha = 100. ► At Ra = 105 the Nu* increases with Ha, indicates higher effect of nanoparticles wiht Ha.