Natural convection of ferrofluids in partially heated square enclosures

摘要: Abstract In this study, natural convection of ferrofluid in a partially heated square cavity is numerically investigated. The heater located to the left vertical wall and right kept at constant temperature lower than that heater. Other walls enclosure are assumed be adiabatic. Finite element method utilized solve governing equations. influence Rayleigh number ( 10 4 ≤ Ra 5 × ), location 0.25 H y h 0.75 strength magnetic dipole 0 γ 2 horizontal − 0.5 , 0.2 b 0.8 ) on fluid flow heat transfer characteristics It observed different velocity components within sensitive source its position. length size recirculation zones adjacent can controlled with strength. Averaged increases decreasing values position source. value from middle towards both ends when varied. When changed, symmetrical behavior averaged plot minimum attained mid wall.